{
  "table": {
    "columnNames": ["GcmdScienceKeywords"],
    "columnTypes": ["String"],
    "rows": [
      ["Earth Science > Agriculture > Agricultural Aquatic Sciences > Aquaculture"],
      ["Earth Science > Agriculture > Agricultural Aquatic Sciences > Fisheries"],
      ["Earth Science > Agriculture > Agricultural Chemicals > Fertilizers"],
      ["Earth Science > Agriculture > Agricultural Chemicals > Pesticides"],
      ["Earth Science > Agriculture > Agricultural Engineering > Agricultural Equipment"],
      ["Earth Science > Agriculture > Agricultural Engineering > Farm Structures"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Crop/Plant Yields"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Cropping Systems"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Irrigation"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Plant Breeding and Genetics"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Plant Diseases/Disorders/Pests"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Agriculture > Agricultural Plant Science > Weeds, Noxious Plants Or Invasive Plants"],
      ["Earth Science > Agriculture > Animal Commodities > Dairy Products"],
      ["Earth Science > Agriculture > Animal Commodities > Livestock Products"],
      ["Earth Science > Agriculture > Animal Commodities > Poultry Products"],
      ["Earth Science > Agriculture > Animal Science > Animal Breeding and Genetics"],
      ["Earth Science > Agriculture > Animal Science > Animal Diseases/Disorders/Pests"],
      ["Earth Science > Agriculture > Animal Science > Animal Ecology and Behavior"],
      ["Earth Science > Agriculture > Animal Science > Animal Management Systems"],
      ["Earth Science > Agriculture > Animal Science > Animal Manure and Waste"],
      ["Earth Science > Agriculture > Animal Science > Animal Nutrition"],
      ["Earth Science > Agriculture > Animal Science > Animal Physiology and Biochemistry"],
      ["Earth Science > Agriculture > Animal Science > Animal Yields"],
      ["Earth Science > Agriculture > Animal Science > Apiculture"],
      ["Earth Science > Agriculture > Animal Science > Sericulture"],
      ["Earth Science > Agriculture > Feed Products > Feed Composition"],
      ["Earth Science > Agriculture > Feed Products > Feed Contamination and Toxicology"],
      ["Earth Science > Agriculture > Feed Products > Feed Processing"],
      ["Earth Science > Agriculture > Feed Products > Feed Storage"],
      ["Earth Science > Agriculture > Food Science > Food Additives"],
      ["Earth Science > Agriculture > Food Science > Food Contamination and Toxicology"],
      ["Earth Science > Agriculture > Food Science > Food Packaging"],
      ["Earth Science > Agriculture > Food Science > Food Processing"],
      ["Earth Science > Agriculture > Food Science > Food Quality"],
      ["Earth Science > Agriculture > Food Science > Food Storage"],
      ["Earth Science > Agriculture > Forest Science > Afforestation/Reforestation"],
      ["Earth Science > Agriculture > Forest Science > Defoliants"],
      ["Earth Science > Agriculture > Forest Science > Forest Conservation"],
      ["Earth Science > Agriculture > Forest Science > Forest Fire Science"],
      ["Earth Science > Agriculture > Forest Science > Forest Harvesting and Engineering"],
      ["Earth Science > Agriculture > Forest Science > Forest Management"],
      ["Earth Science > Agriculture > Forest Science > Forest Mensuration"],
      ["Earth Science > Agriculture > Forest Science > Forest Products/Commodities"],
      ["Earth Science > Agriculture > Forest Science > Forest Protection"],
      ["Earth Science > Agriculture > Forest Science > Forest Yields"],
      ["Earth Science > Agriculture > Forest Science > Reforestation"],
      ["Earth Science > Agriculture > Plant Commodities > Field Crop Products"],
      ["Earth Science > Agriculture > Plant Commodities > Fruit Products"],
      ["Earth Science > Agriculture > Plant Commodities > Horticultural Products"],
      ["Earth Science > Agriculture > Plant Commodities > Vegetable Products"],
      ["Earth Science > Agriculture > Soils > Calcium"],
      ["Earth Science > Agriculture > Soils > Carbon"],
      ["Earth Science > Agriculture > Soils > Cation Exchange Capacity"],
      ["Earth Science > Agriculture > Soils > Denitrification Rate"],
      ["Earth Science > Agriculture > Soils > Electrical Conductivity"],
      ["Earth Science > Agriculture > Soils > Heavy Metals"],
      ["Earth Science > Agriculture > Soils > Hydraulic Conductivity"],
      ["Earth Science > Agriculture > Soils > Macrofauna"],
      ["Earth Science > Agriculture > Soils > Magnesium"],
      ["Earth Science > Agriculture > Soils > Microfauna"],
      ["Earth Science > Agriculture > Soils > Microflora"],
      ["Earth Science > Agriculture > Soils > Micronutrients/Trace Elements"],
      ["Earth Science > Agriculture > Soils > Nitrogen"],
      ["Earth Science > Agriculture > Soils > Organic Matter"],
      ["Earth Science > Agriculture > Soils > Permafrost"],
      ["Earth Science > Agriculture > Soils > Phosphorus"],
      ["Earth Science > Agriculture > Soils > Potassium"],
      ["Earth Science > Agriculture > Soils > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Agriculture > Soils > Soil Absorption"],
      ["Earth Science > Agriculture > Soils > Soil Bulk Density"],
      ["Earth Science > Agriculture > Soils > Soil Chemistry"],
      ["Earth Science > Agriculture > Soils > Soil Classification"],
      ["Earth Science > Agriculture > Soils > Soil Color"],
      ["Earth Science > Agriculture > Soils > Soil Compaction"],
      ["Earth Science > Agriculture > Soils > Soil Consistence"],
      ["Earth Science > Agriculture > Soils > Soil Depth"],
      ["Earth Science > Agriculture > Soils > Soil Erosion"],
      ["Earth Science > Agriculture > Soils > Soil Fertility"],
      ["Earth Science > Agriculture > Soils > Soil Gas/Air"],
      ["Earth Science > Agriculture > Soils > Soil Heat Budget"],
      ["Earth Science > Agriculture > Soils > Soil Horizons/Profile"],
      ["Earth Science > Agriculture > Soils > Soil Impedance"],
      ["Earth Science > Agriculture > Soils > Soil Infiltration"],
      ["Earth Science > Agriculture > Soils > Soil Mechanics"],
      ["Earth Science > Agriculture > Soils > Soil Moisture/Water Content"],
      ["Earth Science > Agriculture > Soils > Soil pH"],
      ["Earth Science > Agriculture > Soils > Soil Plasticity"],
      ["Earth Science > Agriculture > Soils > Soil Porosity"],
      ["Earth Science > Agriculture > Soils > Soil Productivity"],
      ["Earth Science > Agriculture > Soils > Soil Respiration"],
      ["Earth Science > Agriculture > Soils > Soil Rooting Depth"],
      ["Earth Science > Agriculture > Soils > Soil Salinity/Soil Sodicity"],
      ["Earth Science > Agriculture > Soils > Soil Structure"],
      ["Earth Science > Agriculture > Soils > Soil Temperature"],
      ["Earth Science > Agriculture > Soils > Soil Texture"],
      ["Earth Science > Agriculture > Soils > Soil Water Holding Capacity"],
      ["Earth Science > Agriculture > Soils > Sulfur"],
      ["Earth Science > Agriculture > Soils > Thermal Conductivity"],
      ["Earth Science > Atmosphere > Aerosols > Aerosol Backscatter"],
      ["Earth Science > Atmosphere > Aerosols > Aerosol Extinction"],
      ["Earth Science > Atmosphere > Aerosols > Aerosol Optical Depth/Thickness > Angstrom Exponent"],
      ["Earth Science > Atmosphere > Aerosols > Aerosol Optical Depth/Thickness"],
      ["Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties"],
      ["Earth Science > Atmosphere > Aerosols > Aerosol Radiance"],
      ["Earth Science > Atmosphere > Aerosols > Carbonaceous Aerosols"],
      ["Earth Science > Atmosphere > Aerosols > Cloud Condensation Nuclei"],
      ["Earth Science > Atmosphere > Aerosols > Dust/Ash/Smoke"],
      ["Earth Science > Atmosphere > Aerosols > Nitrate Particles"],
      ["Earth Science > Atmosphere > Aerosols > Organic Particles"],
      ["Earth Science > Atmosphere > Aerosols > Particulate Matter"],
      ["Earth Science > Atmosphere > Aerosols > Sulfate Particles"],
      ["Earth Science > Atmosphere > Air Quality > Carbon Monoxide"],
      ["Earth Science > Atmosphere > Air Quality > Emissions"],
      ["Earth Science > Atmosphere > Air Quality > Lead"],
      ["Earth Science > Atmosphere > Air Quality > Nitrogen Oxides"],
      ["Earth Science > Atmosphere > Air Quality > Particulates"],
      ["Earth Science > Atmosphere > Air Quality > Smog"],
      ["Earth Science > Atmosphere > Air Quality > Sulfur Oxides"],
      ["Earth Science > Atmosphere > Air Quality > Tropospheric Ozone"],
      ["Earth Science > Atmosphere > Air Quality > Turbidity"],
      ["Earth Science > Atmosphere > Air Quality > Visibility"],
      ["Earth Science > Atmosphere > Air Quality > Volatile Organic Compounds"],
      ["Earth Science > Atmosphere > Altitude > Barometric Altitude"],
      ["Earth Science > Atmosphere > Altitude > Geopotential Height"],
      ["Earth Science > Atmosphere > Altitude > Mesopause"],
      ["Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height"],
      ["Earth Science > Atmosphere > Altitude > Station Height"],
      ["Earth Science > Atmosphere > Altitude > Stratopause"],
      ["Earth Science > Atmosphere > Altitude > Tropopause"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Carbon Dioxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Carbon Monoxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Chlorinated Hydrocarbons"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Hydrogen Cyanide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Hypochlorous Monoxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Methane"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Methyl Cyanide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds > Non-Methane Hydrocarbons/Volatile Organic Compounds"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Bromine Monoxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Carbon Tetrachloride"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Chlorine Dioxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Chlorine Monoxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Chlorine Nitrate"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Chlorofluorocarbons"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Halocarbons"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Halons"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Hydrochlorofluorocarbons"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Hydrofluorocarbons"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Hydrogen Chloride"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Hydrogen Fluoride"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Hypochlorous Acid"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Methyl Bromide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens > Methyl Chloride"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons and Halogens"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroperoxy"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroxyl"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Molecular Hydrogen"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Ammonia"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Dinitrogen Pentoxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Molecular Nitrogen"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Acid"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Oxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Dioxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Oxides"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrous Oxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Molecular Oxygen"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Photochemistry > Photolysis Rates"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Carbonyl Sulfide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Dimethyl Sulfide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Sulfate"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Sulfur Dioxide"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Sulfur Oxides"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Trace Elements/Trace Metals"],
      ["Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/Trace Species"],
      ["Earth Science > Atmosphere > Atmospheric Electricity > Atmospheric Conductivity"],
      ["Earth Science > Atmosphere > Atmospheric Electricity > Electric Field"],
      ["Earth Science > Atmosphere > Atmospheric Electricity > Lightning"],
      ["Earth Science > Atmosphere > Atmospheric Electricity > Total Electron Content"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Cyclones"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Drought"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Fog"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Freeze"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Frost"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Hurricanes"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Lightning"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Monsoons"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Storms"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Tornadoes"],
      ["Earth Science > Atmosphere > Atmospheric Phenomena > Typhoons"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Anticyclones/Cyclones"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Differential Pressure"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Gravity Wave"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Hydrostatic Pressure"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Oscillations"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Planetary Boundary Layer Height"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Planetary/Rossby Waves"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Pressure Anomalies"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Pressure Tendency"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Pressure Thickness"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure"],
      ["Earth Science > Atmosphere > Atmospheric Pressure > Topographic Waves"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Absorption"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Airglow"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Albedo"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Anisotropy"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Atmospheric Emitted Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Atmospheric Heating"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Emissivity"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Heat Flux"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Longwave Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Net Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Optical Depth/Thickness"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Radiative Flux"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Radiative Forcing"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Reflectance"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Scattering"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Solar Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Sunshine"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Transmittance"],
      ["Earth Science > Atmosphere > Atmospheric Radiation > Ultraviolet Radiation"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Stability"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Boundary Layer Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Degree Days"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Deiced Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Dew Point Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Inversion Height"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Maximum/Minimum Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Potential Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Skin Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Static Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Temperature Anomalies"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Temperature Profiles"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Temperature Tendency"],
      ["Earth Science > Atmosphere > Atmospheric Temperature > Virtual Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Condensation"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Dew Point Temperature"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Evaporation"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Evapotranspiration"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Precipitable Water"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Sublimation"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles"],
      ["Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Tendency"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Boundary Layer Winds"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Convection"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Convergence/Divergence"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Flight Level Winds"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Streamfunctions"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Surface Winds"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Turbulence"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Vertical Wind Motion"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Vorticity"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Wind Chill"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Wind Shear"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Wind Stress"],
      ["Earth Science > Atmosphere > Atmospheric Winds > Wind Tendency"],
      ["Earth Science > Atmosphere > Clouds > Cloud Amount/Frequency"],
      ["Earth Science > Atmosphere > Clouds > Cloud Asymmetry"],
      ["Earth Science > Atmosphere > Clouds > Cloud Base"],
      ["Earth Science > Atmosphere > Clouds > Cloud Base Pressure"],
      ["Earth Science > Atmosphere > Clouds > Cloud Base Temperature"],
      ["Earth Science > Atmosphere > Clouds > Cloud Ceiling"],
      ["Earth Science > Atmosphere > Clouds > Cloud Condensation Nuclei"],
      ["Earth Science > Atmosphere > Clouds > Cloud Emissivity"],
      ["Earth Science > Atmosphere > Clouds > Cloud Forcing"],
      ["Earth Science > Atmosphere > Clouds > Cloud Height"],
      ["Earth Science > Atmosphere > Clouds > Cloud Liquid Water/Ice"],
      ["Earth Science > Atmosphere > Clouds > Cloud Mass Flux"],
      ["Earth Science > Atmosphere > Clouds > Cloud Midlayer Temperature"],
      ["Earth Science > Atmosphere > Clouds > Cloud Optical Depth/Thickness"],
      ["Earth Science > Atmosphere > Clouds > Cloud Precipitable Water"],
      ["Earth Science > Atmosphere > Clouds > Cloud Reflectance"],
      ["Earth Science > Atmosphere > Clouds > Cloud Top Pressure"],
      ["Earth Science > Atmosphere > Clouds > Cloud Top Temperature"],
      ["Earth Science > Atmosphere > Clouds > Cloud Types"],
      ["Earth Science > Atmosphere > Clouds > Cloud Vertical Distribution"],
      ["Earth Science > Atmosphere > Clouds > Droplet Concentration/Size"],
      ["Earth Science > Atmosphere > Precipitation > Acid Rain"],
      ["Earth Science > Atmosphere > Precipitation > Droplet Size"],
      ["Earth Science > Atmosphere > Precipitation > Freezing Rain"],
      ["Earth Science > Atmosphere > Precipitation > Hail"],
      ["Earth Science > Atmosphere > Precipitation > Hydrometeors"],
      ["Earth Science > Atmosphere > Precipitation > Liquid Water Equivalent"],
      ["Earth Science > Atmosphere > Precipitation > Precipitation Amount"],
      ["Earth Science > Atmosphere > Precipitation > Precipitation Anomalies"],
      ["Earth Science > Atmosphere > Precipitation > Precipitation Rate"],
      ["Earth Science > Atmosphere > Precipitation > Rain"],
      ["Earth Science > Atmosphere > Precipitation > Sleet"],
      ["Earth Science > Atmosphere > Precipitation > Snow"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Acorn Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arrow Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Chelicerates > Arachnids"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Chelicerates"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Amphipods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Barnacles"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Copepods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Decapods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Euphausiids (Krill)"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Isopods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Mysids"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Ostracods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Hexapods > Entognatha"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Hexapods > Insects"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Hexapods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Myriapods > Centipedes"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Myriapods > Millipedes"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Myriapods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Arthropods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Bryozoans/Moss Animals"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Burrows/Spoon Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Hexacorals > Hard Or Stony Corals"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Hexacorals > Sea Anemones"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Hexacorals"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Octocorals > Sea Fans/Sea Whips"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Octocorals > Sea Pens"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Octocorals > Soft Corals"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Anthozoans/Octocorals"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Hydrozoans"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians > Jellyfishes"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Cnidarians"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Comb Jellies"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Echinoderms > Brittle/Basket Stars"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Echinoderms > Sea Stars"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Echinoderms > Sea Urchins"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Echinoderms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Entoprocts"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Flatworms/Flukes/Tapeworms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Gnathostomulids"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Horsehair Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Lamp Shells"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Loriciferans"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Aplacophorans"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Bivalves > Clams"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Bivalves > Mussels"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Bivalves > Oysters"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Bivalves"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Cephalopods > Squids"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Cephalopods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Chitons"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Gastropods"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Mollusks"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Peanut Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Phoronids"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Priapulans"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Ribbon Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Rotifers"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Roundworms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Segmented Worms (Annelids) > Bristle Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Segmented Worms (Annelids) > Earthworms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Segmented Worms (Annelids) > Leeches"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Segmented Worms (Annelids)"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Spiny-Headed Worms"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Sponges"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Tunicates > Larvaceans"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Tunicates > Salps"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Tunicates > Sea Squirts"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Tunicates"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Water Bears (Tardigrades)"],
      ["Earth Science > Biological Classification > Animals/Invertebrates > Wheel Weavers (Cycliophorans)"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Amphibians > Frogs/Toads"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Amphibians > Salamanders"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Amphibians"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Albatrosses/Petrels and Allies"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Cranes and Allies"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Ducks/Geese/Swans"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Eagles/Falcons/Hawks and Allies"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Grebes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Herons/Egrets and Allies"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Ibises/Spoonbills"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Loons"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Pelicans and Allies"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Penguins"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Perching Birds"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Sandpipers"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds > Waders/Gulls/Auks and Allies"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Birds"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Lampreys/Hagfishes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Anchovies/Herrings"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Catfishes/Minnows"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Cods/Haddocks"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Flounders"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Needlefishes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Perch-like Fishes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Pupfishes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Salmons/Trouts"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes > Sturgeons/Paddlefishes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Ray-Finned Fishes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish > Sharks/Rays/Chimaeras"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Fish"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Bats"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Carnivores > Bears"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Carnivores > Dogs/Foxes/Wolves"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Carnivores > Martens/Weasels/Wolverines"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Carnivores > Otters"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Carnivores > Seals/Sea Lions/Walruses"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Carnivores"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Cetaceans > Baleen Whales"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Cetaceans > Toothed Whales"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Cetaceans"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Dugongs/Manatees"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Elephants"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Even-Toed Ungulates > Cattle/Sheep"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Even-Toed Ungulates > Deer/Moose"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Even-Toed Ungulates > Hogs/Pigs"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Even-Toed Ungulates"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Rodents"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Mammals"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Reptiles > Alligators/Crocodiles"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Reptiles > Lizards/Snakes"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Reptiles > Turtles"],
      ["Earth Science > Biological Classification > Animals/Vertebrates > Reptiles"],
      ["Earth Science > Biological Classification > Bacteria/Archaea > Cyanobacteria (Blue-Green Algae)"],
      ["Earth Science > Biological Classification > Fungi > Lichens"],
      ["Earth Science > Biological Classification > Fungi > Mushrooms"],
      ["Earth Science > Biological Classification > Fungi > Slime Molds"],
      ["Earth Science > Biological Classification > Fungi > Yeasts/Truffles"],
      ["Earth Science > Biological Classification > Plants > Angiosperms (Flowering Plants) > Dicots"],
      ["Earth Science > Biological Classification > Plants > Angiosperms (Flowering Plants) > Monocots > Seagrass"],
      ["Earth Science > Biological Classification > Plants > Angiosperms (Flowering Plants) > Monocots"],
      ["Earth Science > Biological Classification > Plants > Angiosperms (Flowering Plants)"],
      ["Earth Science > Biological Classification > Plants > Ferns and Allies > Club Mosses"],
      ["Earth Science > Biological Classification > Plants > Ferns and Allies > Ferns"],
      ["Earth Science > Biological Classification > Plants > Ferns and Allies > Horsetails"],
      ["Earth Science > Biological Classification > Plants > Ferns and Allies > Whisk Ferns"],
      ["Earth Science > Biological Classification > Plants > Ferns and Allies"],
      ["Earth Science > Biological Classification > Plants > Gymnosperms > Conifers"],
      ["Earth Science > Biological Classification > Plants > Gymnosperms > Cycads"],
      ["Earth Science > Biological Classification > Plants > Gymnosperms > Ginkgo"],
      ["Earth Science > Biological Classification > Plants > Gymnosperms > Gnetops"],
      ["Earth Science > Biological Classification > Plants > Gymnosperms"],
      ["Earth Science > Biological Classification > Plants > Macroalgae (Seaweeds) > Brown Algae"],
      ["Earth Science > Biological Classification > Plants > Macroalgae (Seaweeds) > Green Algae"],
      ["Earth Science > Biological Classification > Plants > Macroalgae (Seaweeds) > Red Algae"],
      ["Earth Science > Biological Classification > Plants > Macroalgae (Seaweeds)"],
      ["Earth Science > Biological Classification > Plants > Microalgae > Cryptomonads"],
      ["Earth Science > Biological Classification > Plants > Microalgae > Diatoms"],
      ["Earth Science > Biological Classification > Plants > Microalgae > Dinoflagellates"],
      ["Earth Science > Biological Classification > Plants > Microalgae > Haptophytes > Coccolithophores"],
      ["Earth Science > Biological Classification > Plants > Microalgae > Haptophytes"],
      ["Earth Science > Biological Classification > Plants > Microalgae"],
      ["Earth Science > Biological Classification > Plants > Mosses/Hornworts/Liverworts"],
      ["Earth Science > Biological Classification > Protists > Amoeboids > Amoebas"],
      ["Earth Science > Biological Classification > Protists > Amoeboids > Foraminifers"],
      ["Earth Science > Biological Classification > Protists > Amoeboids > Radiolarians"],
      ["Earth Science > Biological Classification > Protists > Amoeboids"],
      ["Earth Science > Biological Classification > Protists > Ciliates"],
      ["Earth Science > Biological Classification > Protists > Diatoms"],
      ["Earth Science > Biological Classification > Protists > Flagellates > Cryptomonads"],
      ["Earth Science > Biological Classification > Protists > Flagellates > Dinoflagellates"],
      ["Earth Science > Biological Classification > Protists > Flagellates > Haptophytes > Coccolithophores"],
      ["Earth Science > Biological Classification > Protists > Flagellates > Haptophytes"],
      ["Earth Science > Biological Classification > Protists > Flagellates"],
      ["Earth Science > Biological Classification > Protists > Macroalgae (Seaweeds) > Brown Algae"],
      ["Earth Science > Biological Classification > Protists > Macroalgae (Seaweeds) > Green Algae"],
      ["Earth Science > Biological Classification > Protists > Macroalgae (Seaweeds) > Red Algae"],
      ["Earth Science > Biological Classification > Protists > Macroalgae (Seaweeds)"],
      ["Earth Science > Biological Classification > Protists > Slime Molds"],
      ["Earth Science > Biological Classification > Protists > Sporozoans"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Benthic Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Coastal Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Demersal Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Estuarine Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Lakes > Saline Lakes"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Lakes"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Marine Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Pelagic Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Plankton > Phytoplankton"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Plankton > Zooplankton"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Plankton"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Reef Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Rivers/Stream Habitat"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Estuarine Wetlands"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Lacustrine Wetlands"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Marine"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Marshes"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Palustrine Wetlands"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Peatlands"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Riparian Wetlands"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands > Swamps"],
      ["Earth Science > Biosphere > Aquatic Ecosystems > Wetlands"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Biodiversity Functions"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Community Structure"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Grazing Dynamics / Plant Ecology"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Indicator Species"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Invasive Species"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Plant Succession"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Species Dominance Indices"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics > Species Recruitment"],
      ["Earth Science > Biosphere > Ecological Dynamics > Community Dynamics"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Biogeochemical Cycles"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Biomass Dynamics"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Chemosynthesis"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Consumption Rates"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Decomposition"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Excretion Rates"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Food-Web Dynamics"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Nutrient Cycling"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Oxygen Demand"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Photosynthesis"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Primary Production"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Respiration Rate"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Secondary Production"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Trophic Dynamics"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecotoxicology > Bioavailability"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecotoxicology > Species Bioaccumulation"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecotoxicology > Toxicity Levels"],
      ["Earth Science > Biosphere > Ecological Dynamics > Ecotoxicology"],
      ["Earth Science > Biosphere > Ecological Dynamics > Fire Ecology > Fire Dynamics"],
      ["Earth Science > Biosphere > Ecological Dynamics > Fire Ecology > Fire Occurrence"],
      ["Earth Science > Biosphere > Ecological Dynamics > Fire Ecology"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Bioluminescence"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Diurnal Movements"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Endangered Species"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Evolutionary Adaptation"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Exotic Species"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Extinction Rate"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Grazing Dynamics/Plant Herbivory"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Indigenous/Native Species"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Migratory Rates/Routes"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Mutation Rates"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Mutualism"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Natural Selection"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Parasitism"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Pollinator Species"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Population Dynamics"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Post-Breeding Periods"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Range Changes"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Scavenging"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Species Competition"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Species Life History"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Species Predation"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Survival Rates"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Symbiosis"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions > Use/Feeding Habitats"],
      ["Earth Science > Biosphere > Ecological Dynamics > Species/Population Interactions"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Agricultural Lands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Alpine/Tundra"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Beaches"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Deserts"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Dunes"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Forests"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Grasslands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Islands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Karst Landscape"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Montane Habitats"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Savannas"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Shrubland/Scrub"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Urban Lands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Estuarine Wetlands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Lacustrine Wetlands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Marine"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Marshes"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Palustrine Wetlands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Peatlands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Riparian Wetlands"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands > Swamps"],
      ["Earth Science > Biosphere > Terrestrial Ecosystems > Wetlands"],
      ["Earth Science > Biosphere > Vegetation > Afforestation/Reforestation"],
      ["Earth Science > Biosphere > Vegetation > Biomass"],
      ["Earth Science > Biosphere > Vegetation > Canopy Characteristics"],
      ["Earth Science > Biosphere > Vegetation > Carbon"],
      ["Earth Science > Biosphere > Vegetation > Chlorophyll"],
      ["Earth Science > Biosphere > Vegetation > Crown"],
      ["Earth Science > Biosphere > Vegetation > Deciduous Vegetation"],
      ["Earth Science > Biosphere > Vegetation > Dominant Species"],
      ["Earth Science > Biosphere > Vegetation > Evergreen Vegetation"],
      ["Earth Science > Biosphere > Vegetation > Exotic Vegetation"],
      ["Earth Science > Biosphere > Vegetation > Forest Composition/Vegetation Structure"],
      ["Earth Science > Biosphere > Vegetation > Herbivory"],
      ["Earth Science > Biosphere > Vegetation > Importance Value"],
      ["Earth Science > Biosphere > Vegetation > Indigenous Vegetation"],
      ["Earth Science > Biosphere > Vegetation > Leaf Characteristics"],
      ["Earth Science > Biosphere > Vegetation > Litter Characteristics"],
      ["Earth Science > Biosphere > Vegetation > Macrophytes"],
      ["Earth Science > Biosphere > Vegetation > Nitrogen"],
      ["Earth Science > Biosphere > Vegetation > Nutrients"],
      ["Earth Science > Biosphere > Vegetation > Phosphorus"],
      ["Earth Science > Biosphere > Vegetation > Photosynthetically Active Radiation"],
      ["Earth Science > Biosphere > Vegetation > Pigments"],
      ["Earth Science > Biosphere > Vegetation > Plant Characteristics"],
      ["Earth Science > Biosphere > Vegetation > Plant Phenology"],
      ["Earth Science > Biosphere > Vegetation > Pollen"],
      ["Earth Science > Biosphere > Vegetation > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Biosphere > Vegetation > Reforestation"],
      ["Earth Science > Biosphere > Vegetation > Tree Rings"],
      ["Earth Science > Biosphere > Vegetation > Vegetation Cover"],
      ["Earth Science > Biosphere > Vegetation > Vegetation Index"],
      ["Earth Science > Biosphere > Vegetation > Vegetation Species"],
      ["Earth Science > Climate Indicators > Air Temperature Indices > Common Sense Climate Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Central Indian Precipitation Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Crop Moisture Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Enso Precipitation Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Fire Weather Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Forest Fire Danger Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Palmer Drought Crop Moisture Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Palmer Drought Severity Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Satellite Soil Moisture Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Standardized Precipitation Index"],
      ["Earth Science > Climate Indicators > Drought/Precipitation Indices > Surface Moisture Index"],
      ["Earth Science > Climate Indicators > Humidity Indices > Humidity Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Atlantic Multidecadal Oscillation"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Caribbean Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Kaplan SST Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Nino 3 Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Nino 4 Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Nino1+2 Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Nino3.4 Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > North Tropical Atlantic Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Oceanic Nino Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Trans-Nino Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Tropical North Atlantic Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Tropical South Atlantic Index"],
      ["Earth Science > Climate Indicators > Ocean/SST Indices > Western Hemisphere Warm Pool"],
      ["Earth Science > Climate Indicators > Teleconnections > Antarctic Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > Arctic Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > Bivariate Enso Timeseries Index"],
      ["Earth Science > Climate Indicators > Teleconnections > Blocking Index"],
      ["Earth Science > Climate Indicators > Teleconnections > East Atlantic Jet Pattern"],
      ["Earth Science > Climate Indicators > Teleconnections > East Atlantic Pattern"],
      ["Earth Science > Climate Indicators > Teleconnections > Eastern Pacific Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > El Nino Southern Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > Equatorial Pacific Meridional Wind Anomaly Index"],
      ["Earth Science > Climate Indicators > Teleconnections > Equatorial Pacific Zonal Wind Anomaly Index"],
      ["Earth Science > Climate Indicators > Teleconnections > Globally Integrated Angular Momentum"],
      ["Earth Science > Climate Indicators > Teleconnections > Madden-Julian Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > North Atlantic Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > North Pacific Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > Northern Oscillation Index"],
      ["Earth Science > Climate Indicators > Teleconnections > Pacific Decadal Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > Pacific/North American (Pna) Pattern"],
      ["Earth Science > Climate Indicators > Teleconnections > Quasi-Biennial Oscillation"],
      ["Earth Science > Climate Indicators > Teleconnections > Tropical/Northern Hemisphere Pattern"],
      ["Earth Science > Climate Indicators > Teleconnections > West Pacific Index"],
      ["Earth Science > Climate Indicators > Teleconnections > Wind and Circulation Indices"],
      ["Earth Science > Cryosphere > Frozen Ground > Active Layer"],
      ["Earth Science > Cryosphere > Frozen Ground > Cryosols"],
      ["Earth Science > Cryosphere > Frozen Ground > Ground Ice"],
      ["Earth Science > Cryosphere > Frozen Ground > Periglacial Processes"],
      ["Earth Science > Cryosphere > Frozen Ground > Permafrost"],
      ["Earth Science > Cryosphere > Frozen Ground > Rock Glaciers"],
      ["Earth Science > Cryosphere > Frozen Ground > Seasonally Frozen Ground"],
      ["Earth Science > Cryosphere > Frozen Ground > Soil Temperature"],
      ["Earth Science > Cryosphere > Frozen Ground > Talik"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Ablation Zones/Accumulation Zones"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Firn"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Facies"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Motion/Ice Sheet Motion"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Glaciers"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Ice Sheets"],
      ["Earth Science > Cryosphere > Glaciers/Ice Sheets > Icebergs"],
      ["Earth Science > Cryosphere > Sea Ice > Heat Flux"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Deformation"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Depth/Thickness"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Edges"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Extent"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Floes"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Growth/Melt"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Roughness"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Temperature"],
      ["Earth Science > Cryosphere > Sea Ice > Ice Types"],
      ["Earth Science > Cryosphere > Sea Ice > Icebergs"],
      ["Earth Science > Cryosphere > Sea Ice > Isotopes"],
      ["Earth Science > Cryosphere > Sea Ice > Leads"],
      ["Earth Science > Cryosphere > Sea Ice > Pack Ice"],
      ["Earth Science > Cryosphere > Sea Ice > Polynyas"],
      ["Earth Science > Cryosphere > Sea Ice > Reflectance"],
      ["Earth Science > Cryosphere > Sea Ice > Salinity"],
      ["Earth Science > Cryosphere > Sea Ice > Sea Ice Age"],
      ["Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration"],
      ["Earth Science > Cryosphere > Sea Ice > Sea Ice Elevation"],
      ["Earth Science > Cryosphere > Sea Ice > Sea Ice Motion"],
      ["Earth Science > Cryosphere > Sea Ice > Snow Depth"],
      ["Earth Science > Cryosphere > Sea Ice > Snow Melt"],
      ["Earth Science > Cryosphere > Snow/Ice > Albedo"],
      ["Earth Science > Cryosphere > Snow/Ice > Avalanche"],
      ["Earth Science > Cryosphere > Snow/Ice > Depth Hoar"],
      ["Earth Science > Cryosphere > Snow/Ice > Freeze/Thaw"],
      ["Earth Science > Cryosphere > Snow/Ice > Frost"],
      ["Earth Science > Cryosphere > Snow/Ice > Ice Depth/Thickness"],
      ["Earth Science > Cryosphere > Snow/Ice > Ice Extent"],
      ["Earth Science > Cryosphere > Snow/Ice > Ice Growth/Melt"],
      ["Earth Science > Cryosphere > Snow/Ice > Ice Motion"],
      ["Earth Science > Cryosphere > Snow/Ice > Ice Velocity"],
      ["Earth Science > Cryosphere > Snow/Ice > Lake Ice"],
      ["Earth Science > Cryosphere > Snow/Ice > Permafrost"],
      ["Earth Science > Cryosphere > Snow/Ice > River Ice"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Cover"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Density"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Depth"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Energy Balance"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Facies"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Melt"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Stratigraphy"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow Water Equivalent"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow/Ice Chemistry"],
      ["Earth Science > Cryosphere > Snow/Ice > Snow/Ice Temperature"],
      ["Earth Science > Cryosphere > Snow/Ice > Whiteout"],
      ["Earth Science > Human Dimensions > Attitudes,preferences,behavior > Consumer Behavior"],
      ["Earth Science > Human Dimensions > Attitudes,preferences,behavior > Recreation"],
      ["Earth Science > Human Dimensions > Attitudes,preferences,behavior > Social Behavior"],
      ["Earth Science > Human Dimensions > Boundaries > Administrative Divisions"],
      ["Earth Science > Human Dimensions > Boundaries > Boundary Surveys"],
      ["Earth Science > Human Dimensions > Boundaries > Political Divisions"],
      ["Earth Science > Human Dimensions > Economic Resources > Agricultural Economics"],
      ["Earth Science > Human Dimensions > Economic Resources > Oil/Gas Production"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Acid Deposition"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Agricultural Expansion"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Biochemical Release"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Biomass Burning"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Chemical Spills"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Civil Disturbance"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Conservation"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Contaminants"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Environmental Assessments"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Fossil Fuel Burning"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Gas Explosions/Leaks"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Gas Flaring"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Heavy Metals"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Industrial Emissions"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Industrialization"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Mine Drainage"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Nuclear Radiation"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Oil Spill"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Sewage"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Urbanization"],
      ["Earth Science > Human Dimensions > Environmental Impacts > Water Management"],
      ["Earth Science > Human Dimensions > Habitat Conversion/Fragmentation > Deforestation"],
      ["Earth Science > Human Dimensions > Habitat Conversion/Fragmentation > Desertification"],
      ["Earth Science > Human Dimensions > Habitat Conversion/Fragmentation > Eutrophication"],
      ["Earth Science > Human Dimensions > Habitat Conversion/Fragmentation > Irrigation"],
      ["Earth Science > Human Dimensions > Habitat Conversion/Fragmentation > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Human Dimensions > Habitat Conversion/Fragmentation > Reforestation"],
      ["Earth Science > Human Dimensions > Human Health > Anatomical Parameters"],
      ["Earth Science > Human Dimensions > Human Health > Diseases/Epidemics"],
      ["Earth Science > Human Dimensions > Human Health > Physiological Parameters"],
      ["Earth Science > Human Dimensions > Human Health > Psychological Parameters"],
      ["Earth Science > Human Dimensions > Human Health > Public Health"],
      ["Earth Science > Human Dimensions > Human Health > Radiation Exposure"],
      ["Earth Science > Human Dimensions > Human Health > Vital Statistics"],
      ["Earth Science > Human Dimensions > Infrastructure > Buildings"],
      ["Earth Science > Human Dimensions > Infrastructure > Communications"],
      ["Earth Science > Human Dimensions > Infrastructure > Cultural Features"],
      ["Earth Science > Human Dimensions > Infrastructure > Electricity"],
      ["Earth Science > Human Dimensions > Infrastructure > Pipelines"],
      ["Earth Science > Human Dimensions > Infrastructure > Transportation"],
      ["Earth Science > Human Dimensions > Land Use/Land Cover > Land Management"],
      ["Earth Science > Human Dimensions > Land Use/Land Cover > Land Tenure"],
      ["Earth Science > Human Dimensions > Land Use/Land Cover > Land Use Classes"],
      ["Earth Science > Human Dimensions > Natural Hazards > Biological Hazards"],
      ["Earth Science > Human Dimensions > Natural Hazards > Fires"],
      ["Earth Science > Human Dimensions > Natural Hazards > Geological Hazards"],
      ["Earth Science > Human Dimensions > Natural Hazards > Hydrological Hazards"],
      ["Earth Science > Human Dimensions > Natural Hazards > Meteorological Hazards"],
      ["Earth Science > Human Dimensions > Population > Population Distribution"],
      ["Earth Science > Human Dimensions > Population > Population Size"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Degradation"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Entrainment"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Erosion"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Landslides"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Sediment Chemistry"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Sediment Composition"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Sediment Transport"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Sedimentation"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Sediments"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Stratigraphic Sequence"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Suspended Solids"],
      ["Earth Science > Land Surface > Erosion/Sedimentation > Weathering"],
      ["Earth Science > Land Surface > Frozen Ground > Active Layer"],
      ["Earth Science > Land Surface > Frozen Ground > Cryosols"],
      ["Earth Science > Land Surface > Frozen Ground > Ground Ice"],
      ["Earth Science > Land Surface > Frozen Ground > Periglacial Processes"],
      ["Earth Science > Land Surface > Frozen Ground > Permafrost"],
      ["Earth Science > Land Surface > Frozen Ground > Rock Glaciers"],
      ["Earth Science > Land Surface > Frozen Ground > Seasonally Frozen Ground"],
      ["Earth Science > Land Surface > Frozen Ground > Soil Temperature"],
      ["Earth Science > Land Surface > Frozen Ground > Talik"],
      ["Earth Science > Land Surface > Geomorphology > Coastal Landforms/Processes"],
      ["Earth Science > Land Surface > Geomorphology > Eolian Landforms/Processes"],
      ["Earth Science > Land Surface > Geomorphology > Fluvial Landforms/Processes"],
      ["Earth Science > Land Surface > Geomorphology > Glacial Landforms/Processes"],
      ["Earth Science > Land Surface > Geomorphology > Karst Landforms/Processes"],
      ["Earth Science > Land Surface > Geomorphology > Tectonic Landforms/Processes"],
      ["Earth Science > Land Surface > Land Temperature > Land Heat Capacity"],
      ["Earth Science > Land Surface > Land Temperature > Land Surface Temperature"],
      ["Earth Science > Land Surface > Land Temperature > Skin Temperature"],
      ["Earth Science > Land Surface > Land Use/Land Cover > Land Cover"],
      ["Earth Science > Land Surface > Land Use/Land Cover > Land Productivity"],
      ["Earth Science > Land Surface > Land Use/Land Cover > Land Resources"],
      ["Earth Science > Land Surface > Land Use/Land Cover > Land Use Classes"],
      ["Earth Science > Land Surface > Landscape > Landscape Ecology"],
      ["Earth Science > Land Surface > Landscape > Landscape Management"],
      ["Earth Science > Land Surface > Landscape > Landscape Patterns"],
      ["Earth Science > Land Surface > Landscape > Landscape Processes"],
      ["Earth Science > Land Surface > Landscape > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Land Surface > Landscape > Reforestation"],
      ["Earth Science > Land Surface > Soils > Calcium"],
      ["Earth Science > Land Surface > Soils > Carbon"],
      ["Earth Science > Land Surface > Soils > Cation Exchange Capacity"],
      ["Earth Science > Land Surface > Soils > Denitrification Rate"],
      ["Earth Science > Land Surface > Soils > Electrical Conductivity"],
      ["Earth Science > Land Surface > Soils > Heavy Metals"],
      ["Earth Science > Land Surface > Soils > Hydraulic Conductivity"],
      ["Earth Science > Land Surface > Soils > Macrofauna"],
      ["Earth Science > Land Surface > Soils > Magnesium"],
      ["Earth Science > Land Surface > Soils > Microfauna"],
      ["Earth Science > Land Surface > Soils > Microflora"],
      ["Earth Science > Land Surface > Soils > Micronutrients/Trace Elements"],
      ["Earth Science > Land Surface > Soils > Nitrogen"],
      ["Earth Science > Land Surface > Soils > Organic Matter"],
      ["Earth Science > Land Surface > Soils > Permafrost"],
      ["Earth Science > Land Surface > Soils > Phosphorus"],
      ["Earth Science > Land Surface > Soils > Potassium"],
      ["Earth Science > Land Surface > Soils > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Land Surface > Soils > Soil Absorption"],
      ["Earth Science > Land Surface > Soils > Soil Bulk Density"],
      ["Earth Science > Land Surface > Soils > Soil Chemistry"],
      ["Earth Science > Land Surface > Soils > Soil Classification"],
      ["Earth Science > Land Surface > Soils > Soil Color"],
      ["Earth Science > Land Surface > Soils > Soil Compaction"],
      ["Earth Science > Land Surface > Soils > Soil Consistence"],
      ["Earth Science > Land Surface > Soils > Soil Depth"],
      ["Earth Science > Land Surface > Soils > Soil Erosion"],
      ["Earth Science > Land Surface > Soils > Soil Fertility"],
      ["Earth Science > Land Surface > Soils > Soil Gas/Air"],
      ["Earth Science > Land Surface > Soils > Soil Heat Budget"],
      ["Earth Science > Land Surface > Soils > Soil Horizons/Profile"],
      ["Earth Science > Land Surface > Soils > Soil Impedance"],
      ["Earth Science > Land Surface > Soils > Soil Infiltration"],
      ["Earth Science > Land Surface > Soils > Soil Mechanics"],
      ["Earth Science > Land Surface > Soils > Soil Moisture/Water Content"],
      ["Earth Science > Land Surface > Soils > Soil pH"],
      ["Earth Science > Land Surface > Soils > Soil Plasticity"],
      ["Earth Science > Land Surface > Soils > Soil Porosity"],
      ["Earth Science > Land Surface > Soils > Soil Productivity"],
      ["Earth Science > Land Surface > Soils > Soil Respiration"],
      ["Earth Science > Land Surface > Soils > Soil Rooting Depth"],
      ["Earth Science > Land Surface > Soils > Soil Salinity/Soil Sodicity"],
      ["Earth Science > Land Surface > Soils > Soil Structure"],
      ["Earth Science > Land Surface > Soils > Soil Temperature"],
      ["Earth Science > Land Surface > Soils > Soil Texture"],
      ["Earth Science > Land Surface > Soils > Soil Water Holding Capacity"],
      ["Earth Science > Land Surface > Soils > Sulfur"],
      ["Earth Science > Land Surface > Soils > Thermal Conductivity"],
      ["Earth Science > Land Surface > Surface Radiative Properties > Albedo"],
      ["Earth Science > Land Surface > Surface Radiative Properties > Anisotropy"],
      ["Earth Science > Land Surface > Surface Radiative Properties > Emissivity"],
      ["Earth Science > Land Surface > Surface Radiative Properties > Reflectance"],
      ["Earth Science > Land Surface > Surface Radiative Properties > Thermal Properties"],
      ["Earth Science > Land Surface > Topography > Contours"],
      ["Earth Science > Land Surface > Topography > Landforms"],
      ["Earth Science > Land Surface > Topography > Surface Roughness"],
      ["Earth Science > Land Surface > Topography > Terrain Elevation"],
      ["Earth Science > Land Surface > Topography > Topographic Effects"],
      ["Earth Science > Land Surface > Topography > Topographical Relief"],
      ["Earth Science > Oceans > Aquatic Sciences > Aquaculture"],
      ["Earth Science > Oceans > Aquatic Sciences > Fisheries"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Abyssal Hills/Plains"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Continental Margins"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Fracture Zones"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Ocean Plateaus/Ridges"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Seamounts"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Submarine Canyons"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Trenches"],
      ["Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth"],
      ["Earth Science > Oceans > Coastal Processes > Barrier Islands"],
      ["Earth Science > Oceans > Coastal Processes > Beaches"],
      ["Earth Science > Oceans > Coastal Processes > Coastal Elevation"],
      ["Earth Science > Oceans > Coastal Processes > Coral Reefs"],
      ["Earth Science > Oceans > Coastal Processes > Deltas"],
      ["Earth Science > Oceans > Coastal Processes > Dunes"],
      ["Earth Science > Oceans > Coastal Processes > Erosion"],
      ["Earth Science > Oceans > Coastal Processes > Estuaries"],
      ["Earth Science > Oceans > Coastal Processes > Fjords"],
      ["Earth Science > Oceans > Coastal Processes > Inlets"],
      ["Earth Science > Oceans > Coastal Processes > Intertidal Zone"],
      ["Earth Science > Oceans > Coastal Processes > Lagoons"],
      ["Earth Science > Oceans > Coastal Processes > Local Subsidence Trends"],
      ["Earth Science > Oceans > Coastal Processes > Longshore Currents"],
      ["Earth Science > Oceans > Coastal Processes > Mangroves"],
      ["Earth Science > Oceans > Coastal Processes > Marshes"],
      ["Earth Science > Oceans > Coastal Processes > Rocky Coasts"],
      ["Earth Science > Oceans > Coastal Processes > Saltwater Intrusion"],
      ["Earth Science > Oceans > Coastal Processes > Sea Level Rise"],
      ["Earth Science > Oceans > Coastal Processes > Sea Surface Height"],
      ["Earth Science > Oceans > Coastal Processes > Sediment Transport"],
      ["Earth Science > Oceans > Coastal Processes > Sedimentation"],
      ["Earth Science > Oceans > Coastal Processes > Shoals"],
      ["Earth Science > Oceans > Coastal Processes > Shoreline Displacement"],
      ["Earth Science > Oceans > Coastal Processes > Shorelines"],
      ["Earth Science > Oceans > Coastal Processes > Storm Surge"],
      ["Earth Science > Oceans > Coastal Processes > Tidal Height"],
      ["Earth Science > Oceans > Marine Environment Monitoring > Marine Obstructions"],
      ["Earth Science > Oceans > Marine Geophysics > Magnetic Anomalies"],
      ["Earth Science > Oceans > Marine Geophysics > Marine Gravity Field"],
      ["Earth Science > Oceans > Marine Geophysics > Marine Magnetics"],
      ["Earth Science > Oceans > Marine Geophysics > Plate Tectonics"],
      ["Earth Science > Oceans > Marine Sediments > Biogenic Sediments"],
      ["Earth Science > Oceans > Marine Sediments > Bioturbation"],
      ["Earth Science > Oceans > Marine Sediments > Diagenesis"],
      ["Earth Science > Oceans > Marine Sediments > Geotechnical Properties"],
      ["Earth Science > Oceans > Marine Sediments > Hydrogenous Sediments"],
      ["Earth Science > Oceans > Marine Sediments > Particle Flux"],
      ["Earth Science > Oceans > Marine Sediments > Sediment Chemistry"],
      ["Earth Science > Oceans > Marine Sediments > Sediment Composition"],
      ["Earth Science > Oceans > Marine Sediments > Sediment Transport"],
      ["Earth Science > Oceans > Marine Sediments > Sedimentary Structures"],
      ["Earth Science > Oceans > Marine Sediments > Sedimentary Textures"],
      ["Earth Science > Oceans > Marine Sediments > Sedimentation"],
      ["Earth Science > Oceans > Marine Sediments > Stratigraphic Sequence"],
      ["Earth Science > Oceans > Marine Sediments > Suspended Solids"],
      ["Earth Science > Oceans > Marine Sediments > Terrigenous Sediments"],
      ["Earth Science > Oceans > Marine Sediments > Turbidity"],
      ["Earth Science > Oceans > Marine Volcanism > Benthic Heat Flow"],
      ["Earth Science > Oceans > Marine Volcanism > Hydrothermal Vents"],
      ["Earth Science > Oceans > Marine Volcanism > Island Arcs"],
      ["Earth Science > Oceans > Marine Volcanism > Mid-Ocean Ridges"],
      ["Earth Science > Oceans > Marine Volcanism > Rift Valleys"],
      ["Earth Science > Oceans > Ocean Acoustics > Acoustic Attenuation/Transmission"],
      ["Earth Science > Oceans > Ocean Acoustics > Acoustic Frequency"],
      ["Earth Science > Oceans > Ocean Acoustics > Acoustic Reflectivity"],
      ["Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering"],
      ["Earth Science > Oceans > Ocean Acoustics > Acoustic Tomography"],
      ["Earth Science > Oceans > Ocean Acoustics > Acoustic Velocity"],
      ["Earth Science > Oceans > Ocean Acoustics > Ambient Noise"],
      ["Earth Science > Oceans > Ocean Chemistry > Alkalinity"],
      ["Earth Science > Oceans > Ocean Chemistry > Ammonia"],
      ["Earth Science > Oceans > Ocean Chemistry > Biogeochemical Cycles"],
      ["Earth Science > Oceans > Ocean Chemistry > Biomedical Chemicals"],
      ["Earth Science > Oceans > Ocean Chemistry > Carbon"],
      ["Earth Science > Oceans > Ocean Chemistry > Carbon Dioxide"],
      ["Earth Science > Oceans > Ocean Chemistry > Carbonate"],
      ["Earth Science > Oceans > Ocean Chemistry > Chlorophyll"],
      ["Earth Science > Oceans > Ocean Chemistry > Dissolved Gases"],
      ["Earth Science > Oceans > Ocean Chemistry > Dissolved Solids"],
      ["Earth Science > Oceans > Ocean Chemistry > Hydrocarbons"],
      ["Earth Science > Oceans > Ocean Chemistry > Inorganic Carbon"],
      ["Earth Science > Oceans > Ocean Chemistry > Inorganic Matter"],
      ["Earth Science > Oceans > Ocean Chemistry > Marine Geochemistry"],
      ["Earth Science > Oceans > Ocean Chemistry > Nitrate"],
      ["Earth Science > Oceans > Ocean Chemistry > Nitric Acid"],
      ["Earth Science > Oceans > Ocean Chemistry > Nitrite"],
      ["Earth Science > Oceans > Ocean Chemistry > Nitrogen"],
      ["Earth Science > Oceans > Ocean Chemistry > Nitrogen Dioxide"],
      ["Earth Science > Oceans > Ocean Chemistry > Nitrous Oxide"],
      ["Earth Science > Oceans > Ocean Chemistry > Nutrients"],
      ["Earth Science > Oceans > Ocean Chemistry > Ocean Tracers"],
      ["Earth Science > Oceans > Ocean Chemistry > Organic Carbon"],
      ["Earth Science > Oceans > Ocean Chemistry > Organic Matter"],
      ["Earth Science > Oceans > Ocean Chemistry > Oxygen"],
      ["Earth Science > Oceans > Ocean Chemistry > pH"],
      ["Earth Science > Oceans > Ocean Chemistry > Phosphate"],
      ["Earth Science > Oceans > Ocean Chemistry > Pigments > Chlorophyll"],
      ["Earth Science > Oceans > Ocean Chemistry > Pigments"],
      ["Earth Science > Oceans > Ocean Chemistry > Radiocarbon"],
      ["Earth Science > Oceans > Ocean Chemistry > Radionuclides"],
      ["Earth Science > Oceans > Ocean Chemistry > Silicate"],
      ["Earth Science > Oceans > Ocean Chemistry > Stable Isotopes"],
      ["Earth Science > Oceans > Ocean Chemistry > Suspended Solids"],
      ["Earth Science > Oceans > Ocean Chemistry > Trace Elements"],
      ["Earth Science > Oceans > Ocean Circulation > Advection"],
      ["Earth Science > Oceans > Ocean Circulation > Buoy Position"],
      ["Earth Science > Oceans > Ocean Circulation > Convection"],
      ["Earth Science > Oceans > Ocean Circulation > Diffusion"],
      ["Earth Science > Oceans > Ocean Circulation > Eddies"],
      ["Earth Science > Oceans > Ocean Circulation > Fresh Water Flux"],
      ["Earth Science > Oceans > Ocean Circulation > Fronts"],
      ["Earth Science > Oceans > Ocean Circulation > Gyres"],
      ["Earth Science > Oceans > Ocean Circulation > Ocean Currents"],
      ["Earth Science > Oceans > Ocean Circulation > Ocean Mixed Layer"],
      ["Earth Science > Oceans > Ocean Circulation > Thermohaline Circulation"],
      ["Earth Science > Oceans > Ocean Circulation > Turbulence"],
      ["Earth Science > Oceans > Ocean Circulation > Upwelling/Downwelling"],
      ["Earth Science > Oceans > Ocean Circulation > Vorticity"],
      ["Earth Science > Oceans > Ocean Circulation > Water Masses"],
      ["Earth Science > Oceans > Ocean Circulation > Wind-Driven Circulation"],
      ["Earth Science > Oceans > Ocean Heat Budget > Advection"],
      ["Earth Science > Oceans > Ocean Heat Budget > Bowen Ratio"],
      ["Earth Science > Oceans > Ocean Heat Budget > Condensation"],
      ["Earth Science > Oceans > Ocean Heat Budget > Conduction"],
      ["Earth Science > Oceans > Ocean Heat Budget > Convection"],
      ["Earth Science > Oceans > Ocean Heat Budget > Diffusion"],
      ["Earth Science > Oceans > Ocean Heat Budget > Evaporation"],
      ["Earth Science > Oceans > Ocean Heat Budget > Heat Flux"],
      ["Earth Science > Oceans > Ocean Heat Budget > Heating Rate"],
      ["Earth Science > Oceans > Ocean Heat Budget > Longwave Radiation"],
      ["Earth Science > Oceans > Ocean Heat Budget > Reflectance"],
      ["Earth Science > Oceans > Ocean Heat Budget > Shortwave Radiation"],
      ["Earth Science > Oceans > Ocean Optics > Absorption"],
      ["Earth Science > Oceans > Ocean Optics > Aphotic/Photic Zone"],
      ["Earth Science > Oceans > Ocean Optics > Attenuation/Transmission"],
      ["Earth Science > Oceans > Ocean Optics > Bioluminescence"],
      ["Earth Science > Oceans > Ocean Optics > Extinction Coefficients"],
      ["Earth Science > Oceans > Ocean Optics > Fluorescence"],
      ["Earth Science > Oceans > Ocean Optics > Gelbstoff"],
      ["Earth Science > Oceans > Ocean Optics > Irradiance"],
      ["Earth Science > Oceans > Ocean Optics > Ocean Color"],
      ["Earth Science > Oceans > Ocean Optics > Optical Depth"],
      ["Earth Science > Oceans > Ocean Optics > Photosynthetically Active Radiation"],
      ["Earth Science > Oceans > Ocean Optics > Radiance"],
      ["Earth Science > Oceans > Ocean Optics > Reflectance"],
      ["Earth Science > Oceans > Ocean Optics > Scattering"],
      ["Earth Science > Oceans > Ocean Optics > Secchi Depth"],
      ["Earth Science > Oceans > Ocean Optics > Turbidity"],
      ["Earth Science > Oceans > Ocean Optics > Water-Leaving Radiance"],
      ["Earth Science > Oceans > Ocean Pressure > Sea Level Pressure"],
      ["Earth Science > Oceans > Ocean Pressure > Water Pressure"],
      ["Earth Science > Oceans > Ocean Temperature > Ocean Mixed Layer"],
      ["Earth Science > Oceans > Ocean Temperature > Potential Temperature"],
      ["Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature"],
      ["Earth Science > Oceans > Ocean Temperature > Thermocline"],
      ["Earth Science > Oceans > Ocean Temperature > Water Temperature"],
      ["Earth Science > Oceans > Ocean Waves > Gravity Waves"],
      ["Earth Science > Oceans > Ocean Waves > Rossby/Planetary Waves"],
      ["Earth Science > Oceans > Ocean Waves > Sea State"],
      ["Earth Science > Oceans > Ocean Waves > Seiches"],
      ["Earth Science > Oceans > Ocean Waves > Significant Wave Height"],
      ["Earth Science > Oceans > Ocean Waves > Storm Surge"],
      ["Earth Science > Oceans > Ocean Waves > Surf Beat"],
      ["Earth Science > Oceans > Ocean Waves > Swells"],
      ["Earth Science > Oceans > Ocean Waves > Topographic Waves"],
      ["Earth Science > Oceans > Ocean Waves > Tsunamis"],
      ["Earth Science > Oceans > Ocean Waves > Wave Fetch"],
      ["Earth Science > Oceans > Ocean Waves > Wave Frequency"],
      ["Earth Science > Oceans > Ocean Waves > Wave Height"],
      ["Earth Science > Oceans > Ocean Waves > Wave Length"],
      ["Earth Science > Oceans > Ocean Waves > Wave Period"],
      ["Earth Science > Oceans > Ocean Waves > Wave Spectra"],
      ["Earth Science > Oceans > Ocean Waves > Wave Speed/Direction"],
      ["Earth Science > Oceans > Ocean Waves > Wave Types"],
      ["Earth Science > Oceans > Ocean Waves > Wind Waves"],
      ["Earth Science > Oceans > Ocean Winds > Convergence/Divergence"],
      ["Earth Science > Oceans > Ocean Winds > Surface Winds"],
      ["Earth Science > Oceans > Ocean Winds > Turbulence"],
      ["Earth Science > Oceans > Ocean Winds > Vertical Wind Motion"],
      ["Earth Science > Oceans > Ocean Winds > Vorticity"],
      ["Earth Science > Oceans > Ocean Winds > Wind Chill"],
      ["Earth Science > Oceans > Ocean Winds > Wind Shear"],
      ["Earth Science > Oceans > Ocean Winds > Wind Stress"],
      ["Earth Science > Oceans > Salinity/Density > Conductivity"],
      ["Earth Science > Oceans > Salinity/Density > Density"],
      ["Earth Science > Oceans > Salinity/Density > Desalinization"],
      ["Earth Science > Oceans > Salinity/Density > Halocline"],
      ["Earth Science > Oceans > Salinity/Density > Potential Density"],
      ["Earth Science > Oceans > Salinity/Density > Pycnocline"],
      ["Earth Science > Oceans > Salinity/Density > Salinity"],
      ["Earth Science > Oceans > Salinity/Density > Salt Transport"],
      ["Earth Science > Oceans > Sea Ice > Heat Flux"],
      ["Earth Science > Oceans > Sea Ice > Ice Deformation"],
      ["Earth Science > Oceans > Sea Ice > Ice Depth/Thickness"],
      ["Earth Science > Oceans > Sea Ice > Ice Edges"],
      ["Earth Science > Oceans > Sea Ice > Ice Extent"],
      ["Earth Science > Oceans > Sea Ice > Ice Floes"],
      ["Earth Science > Oceans > Sea Ice > Ice Growth/Melt"],
      ["Earth Science > Oceans > Sea Ice > Ice Roughness"],
      ["Earth Science > Oceans > Sea Ice > Ice Temperature"],
      ["Earth Science > Oceans > Sea Ice > Ice Types"],
      ["Earth Science > Oceans > Sea Ice > Icebergs"],
      ["Earth Science > Oceans > Sea Ice > Isotopes"],
      ["Earth Science > Oceans > Sea Ice > Leads"],
      ["Earth Science > Oceans > Sea Ice > Pack Ice"],
      ["Earth Science > Oceans > Sea Ice > Polynyas"],
      ["Earth Science > Oceans > Sea Ice > Reflectance"],
      ["Earth Science > Oceans > Sea Ice > Salinity"],
      ["Earth Science > Oceans > Sea Ice > Sea Ice Age"],
      ["Earth Science > Oceans > Sea Ice > Sea Ice Concentration"],
      ["Earth Science > Oceans > Sea Ice > Sea Ice Elevation"],
      ["Earth Science > Oceans > Sea Ice > Sea Ice Motion"],
      ["Earth Science > Oceans > Sea Ice > Snow Depth"],
      ["Earth Science > Oceans > Sea Ice > Snow Melt"],
      ["Earth Science > Oceans > Sea Surface Topography > Sea Surface Height"],
      ["Earth Science > Oceans > Sea Surface Topography > Sea Surface Slope"],
      ["Earth Science > Oceans > Tides > Storm Surge"],
      ["Earth Science > Oceans > Tides > Tidal Components"],
      ["Earth Science > Oceans > Tides > Tidal Currents"],
      ["Earth Science > Oceans > Tides > Tidal Height"],
      ["Earth Science > Oceans > Tides > Tidal Range"],
      ["Earth Science > Oceans > Water Quality > Ocean Contaminants"],
      ["Earth Science > Paleoclimate > Ice Core Records > Carbon Dioxide"],
      ["Earth Science > Paleoclimate > Ice Core Records > Electrical Properties"],
      ["Earth Science > Paleoclimate > Ice Core Records > Ice Core Air Bubbles"],
      ["Earth Science > Paleoclimate > Ice Core Records > Ions"],
      ["Earth Science > Paleoclimate > Ice Core Records > Isotopes"],
      ["Earth Science > Paleoclimate > Ice Core Records > Methane"],
      ["Earth Science > Paleoclimate > Ice Core Records > Nitrous Oxide"],
      ["Earth Science > Paleoclimate > Ice Core Records > Particulate Matter"],
      ["Earth Science > Paleoclimate > Ice Core Records > Volcanic Deposits"],
      ["Earth Science > Paleoclimate > Land Records > Boreholes"],
      ["Earth Science > Paleoclimate > Land Records > Cave Deposits"],
      ["Earth Science > Paleoclimate > Land Records > Glaciation"],
      ["Earth Science > Paleoclimate > Land Records > Isotopes"],
      ["Earth Science > Paleoclimate > Land Records > Loess"],
      ["Earth Science > Paleoclimate > Land Records > Macrofossils"],
      ["Earth Science > Paleoclimate > Land Records > Microfossils"],
      ["Earth Science > Paleoclimate > Land Records > Paleomagnetic Data"],
      ["Earth Science > Paleoclimate > Land Records > Paleosols"],
      ["Earth Science > Paleoclimate > Land Records > Paleovegetation"],
      ["Earth Science > Paleoclimate > Land Records > Pollen"],
      ["Earth Science > Paleoclimate > Land Records > Radiocarbon"],
      ["Earth Science > Paleoclimate > Land Records > Sediments"],
      ["Earth Science > Paleoclimate > Land Records > Stratigraphic Sequence"],
      ["Earth Science > Paleoclimate > Land Records > Tree Rings"],
      ["Earth Science > Paleoclimate > Land Records > Volcanic Deposits"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Boreholes"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Coral Deposits"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Isotopes"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Lake Levels"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Macrofossils"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Microfossils"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Oxygen Isotopes"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Paleomagnetic Data"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Pollen"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Radiocarbon"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Sediments"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Stratigraphic Sequence"],
      ["Earth Science > Paleoclimate > Ocean/Lake Records > Varve Deposits"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Air Temperature Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Atmospheric Circulation Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Drought/Precipitation Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Ground Water Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Lake Level Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Ocean Salinity Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Sea Level Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Sea Surface Temperature Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Solar Forcing/Insolation Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Streamflow Reconstruction"],
      ["Earth Science > Paleoclimate > Paleoclimate Reconstructions > Vegetation Reconstruction"],
      ["Earth Science > Solid Earth > Geochemistry > Biogeochemistry"],
      ["Earth Science > Solid Earth > Geochemistry > Chemical Fixation"],
      ["Earth Science > Solid Earth > Geochemistry > Chemical Weathering"],
      ["Earth Science > Solid Earth > Geochemistry > Hydration"],
      ["Earth Science > Solid Earth > Geochemistry > Ion Exchange"],
      ["Earth Science > Solid Earth > Geochemistry > Isotopes"],
      ["Earth Science > Solid Earth > Geochemistry > Major Elements"],
      ["Earth Science > Solid Earth > Geochemistry > Marine Geochemistry"],
      ["Earth Science > Solid Earth > Geochemistry > Minor Elements"],
      ["Earth Science > Solid Earth > Geochemistry > Oxidation/Reduction"],
      ["Earth Science > Solid Earth > Geochemistry > Trace Elements"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Control Surveys"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Crustal Motion"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Geoid Properties"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Gravitational Field"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Gravity"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Ocean Crust Deformation"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Polar Motion"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Reference Systems"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Rotational Variations"],
      ["Earth Science > Solid Earth > Geodetics/Gravity > Satellite Orbits"],
      ["Earth Science > Solid Earth > Geomagnetism > Electrical Field"],
      ["Earth Science > Solid Earth > Geomagnetism > Geomagnetic Forecasts"],
      ["Earth Science > Solid Earth > Geomagnetism > Geomagnetic Indices"],
      ["Earth Science > Solid Earth > Geomagnetism > Geomagnetic Induction"],
      ["Earth Science > Solid Earth > Geomagnetism > Magnetic Anomalies"],
      ["Earth Science > Solid Earth > Geomagnetism > Magnetic Declination"],
      ["Earth Science > Solid Earth > Geomagnetism > Magnetic Field"],
      ["Earth Science > Solid Earth > Geomagnetism > Magnetic Inclination"],
      ["Earth Science > Solid Earth > Geomagnetism > Magnetic Intensity"],
      ["Earth Science > Solid Earth > Geomagnetism > Paleomagnetism"],
      ["Earth Science > Solid Earth > Geomagnetism > Reference Fields"],
      ["Earth Science > Solid Earth > Geomorphology > Coastal Landforms/Processes"],
      ["Earth Science > Solid Earth > Geomorphology > Eolian Landforms/Processes"],
      ["Earth Science > Solid Earth > Geomorphology > Fluvial Landforms/Processes"],
      ["Earth Science > Solid Earth > Geomorphology > Glacial Landforms/Processes"],
      ["Earth Science > Solid Earth > Geomorphology > Karst Landforms/Processes"],
      ["Earth Science > Solid Earth > Geomorphology > Tectonic Landforms/Processes"],
      ["Earth Science > Solid Earth > Geothermal > Geothermal Energy"],
      ["Earth Science > Solid Earth > Geothermal > Geothermal Temperature"],
      ["Earth Science > Solid Earth > Natural Resources > Coal"],
      ["Earth Science > Solid Earth > Natural Resources > Gas Hydrates"],
      ["Earth Science > Solid Earth > Natural Resources > Metals"],
      ["Earth Science > Solid Earth > Natural Resources > Natural Gas"],
      ["Earth Science > Solid Earth > Natural Resources > Non-Metallic Minerals"],
      ["Earth Science > Solid Earth > Natural Resources > Petroleum"],
      ["Earth Science > Solid Earth > Natural Resources > Radioactive Elements"],
      ["Earth Science > Solid Earth > Natural Resources > Reclamation/Revegetation/Restoration"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Age Determinations"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Bedrock Lithology"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Igneous Rocks"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Metamorphic Rocks"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Meteorites"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Mineraloids"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Minerals/Crystals"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Sedimentary Rocks"],
      ["Earth Science > Solid Earth > Rocks/Minerals > Sediments"],
      ["Earth Science > Solid Earth > Seismology > Earthquake Dynamics"],
      ["Earth Science > Solid Earth > Seismology > Earthquake Occurrences"],
      ["Earth Science > Solid Earth > Seismology > Earthquake Predictions"],
      ["Earth Science > Solid Earth > Seismology > Seismic Body Waves"],
      ["Earth Science > Solid Earth > Seismology > Seismic Profile"],
      ["Earth Science > Solid Earth > Seismology > Seismic Surface Waves"],
      ["Earth Science > Solid Earth > Tectonics > Core Processes"],
      ["Earth Science > Solid Earth > Tectonics > Faults"],
      ["Earth Science > Solid Earth > Tectonics > Folds"],
      ["Earth Science > Solid Earth > Tectonics > Isostatic Rebound"],
      ["Earth Science > Solid Earth > Tectonics > Lithospheric Plate Motion"],
      ["Earth Science > Solid Earth > Tectonics > Neotectonics"],
      ["Earth Science > Solid Earth > Tectonics > Plate Boundaries"],
      ["Earth Science > Solid Earth > Tectonics > Plate Tectonics"],
      ["Earth Science > Solid Earth > Tectonics > Strain"],
      ["Earth Science > Solid Earth > Tectonics > Stratigraphic Sequence"],
      ["Earth Science > Solid Earth > Tectonics > Stress"],
      ["Earth Science > Solid Earth > Volcanoes > Eruption Dynamics"],
      ["Earth Science > Solid Earth > Volcanoes > Lava"],
      ["Earth Science > Solid Earth > Volcanoes > Magma"],
      ["Earth Science > Solid Earth > Volcanoes > Pyroclastics"],
      ["Earth Science > Solid Earth > Volcanoes > Volcanic Ash/Dust"],
      ["Earth Science > Solid Earth > Volcanoes > Volcanic Gases"],
      ["Earth Science > Spectral/Engineering > Gamma Ray > Gamma Ray Flux"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Brightness Temperature"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Infrared Flux"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Infrared Imagery"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Infrared Radiance"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Reflected Infrared"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Sensor Counts"],
      ["Earth Science > Spectral/Engineering > Infrared Wavelengths > Thermal Infrared"],
      ["Earth Science > Spectral/Engineering > Lidar > Lidar Backscatter"],
      ["Earth Science > Spectral/Engineering > Lidar > Lidar Depolarization Ratio"],
      ["Earth Science > Spectral/Engineering > Microwave > Antenna Temperature"],
      ["Earth Science > Spectral/Engineering > Microwave > Brightness Temperature"],
      ["Earth Science > Spectral/Engineering > Microwave > Microwave Imagery"],
      ["Earth Science > Spectral/Engineering > Microwave > Microwave Radiance"],
      ["Earth Science > Spectral/Engineering > Microwave > Sensor Counts"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Airspeed/Ground Speed"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Attitude Characteristics"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Data Synchronization Time"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Flight Data Logs"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Line Of Sight Velocity"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Orbital Characteristics"],
      ["Earth Science > Spectral/Engineering > Platform Characteristics > Viewing Geometry"],
      ["Earth Science > Spectral/Engineering > Radar > Doppler Velocity"],
      ["Earth Science > Spectral/Engineering > Radar > Radar Backscatter"],
      ["Earth Science > Spectral/Engineering > Radar > Radar Cross-Section"],
      ["Earth Science > Spectral/Engineering > Radar > Radar Imagery"],
      ["Earth Science > Spectral/Engineering > Radar > Radar Reflectivity"],
      ["Earth Science > Spectral/Engineering > Radar > Return Power"],
      ["Earth Science > Spectral/Engineering > Radar > Sensor Counts"],
      ["Earth Science > Spectral/Engineering > Radar > Sigma Naught"],
      ["Earth Science > Spectral/Engineering > Radio Wave > Radio Wave Flux"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Dome Temperature"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Electrical Properties"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Phase and Amplitude"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Sink Temperature"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Thermal Properties"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Total Pressure"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Total Temperature"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Ultraviolet Sensor Temperature"],
      ["Earth Science > Spectral/Engineering > Sensor Characteristics > Viewing Geometry"],
      ["Earth Science > Spectral/Engineering > Ultraviolet Wavelengths > Sensor Counts"],
      ["Earth Science > Spectral/Engineering > Ultraviolet Wavelengths > Ultraviolet Flux"],
      ["Earth Science > Spectral/Engineering > Ultraviolet Wavelengths > Ultraviolet Radiance"],
      ["Earth Science > Spectral/Engineering > Visible Wavelengths > Sensor Counts"],
      ["Earth Science > Spectral/Engineering > Visible Wavelengths > Visible Flux"],
      ["Earth Science > Spectral/Engineering > Visible Wavelengths > Visible Imagery"],
      ["Earth Science > Spectral/Engineering > Visible Wavelengths > Visible Radiance"],
      ["Earth Science > Spectral/Engineering > X-Ray > X-Ray Flux"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Aurorae"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Electric Fields/Electric Currents"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Geomagnetic Forecasts"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Geomagnetic Indices"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Ion Chemistry/Ionization"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Fields/Magnetic Currents"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Storms"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Plasma Waves"],
      ["Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Solar Wind"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Corona"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Corona Holes"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Coronal Mass Ejections"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Cosmic Rays"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Active Regions"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Flares"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Imagery"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Irradiance"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Oscillations"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Prominences/Solar Filaments"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Radio Wave Emissions"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Synoptic Maps"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Ultraviolet Emissions"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar Velocity Fields"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Solar X-ray Emissions"],
      ["Earth Science > Sun-Earth Interactions > Solar Activity > Sunspots"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Alpha Particle Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Electron Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Heavy Nuclei Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Ion Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Neutral Particle Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Proton Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > Sub-Atomic Particle Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Flux > X-Ray Flux"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Energy Deposition"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Particle Composition"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Particle Density"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Particle Distribution Functions"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Particle Speed"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Particle Temperature"],
      ["Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Total Electron Content"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Ablation Zones/Accumulation Zones"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Firn"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Facies"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Motion/Ice Sheet Motion"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glaciers"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Ice Sheets"],
      ["Earth Science > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Icebergs"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Aquifers"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Dispersion"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Drainage"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Ground Water Discharge/Flow"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Groundwater Chemistry"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Infiltration"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Land Subsidence"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Percolation"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Saltwater Intrusion"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Springs"],
      ["Earth Science > Terrestrial Hydrosphere > Ground Water > Water Table"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Albedo"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Avalanche"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Depth Hoar"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Freeze/Thaw"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Frost"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Ice Depth/Thickness"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Ice Extent"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Ice Growth/Melt"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Ice Motion"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Ice Velocity"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Lake Ice"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Permafrost"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > River Ice"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Cover"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Density"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Depth"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Energy Balance"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Facies"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Melt"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Stratigraphy"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Water Equivalent"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow/Ice Chemistry"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow/Ice Temperature"],
      ["Earth Science > Terrestrial Hydrosphere > Snow/Ice > Whiteout"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Aquifer Recharge"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Discharge/Flow"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Drainage"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Floods"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Hydropattern"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Hydroperiod"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Inundation"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Lakes"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Rivers/Streams"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Runoff"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Stage Height"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Surface Water Chemistry"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Total Surface Water"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Water Channels"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Water Depth"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Water Pressure"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Water Yield"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Watershed Characteristics"],
      ["Earth Science > Terrestrial Hydrosphere > Surface Water > Wetlands"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Acid Deposition"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Alkalinity"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Benthic Index"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Carbon Dioxide"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Carcinogens"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Chlorophyll"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Conductivity"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Contaminants"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Dissolved Gases"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Dissolved Solids"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Hydrocarbons"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Inorganic Matter"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Light Transmission"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Nitrogen Compounds"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Nutrients"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Organic Matter"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Oxygen"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > pH"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Phosphorous Compounds"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Radioisotopes"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Stable Isotopes"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Suspended Solids"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Toxic Chemicals"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Trace Metals"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Turbidity"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Water Ion Concentration"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Water Potability"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Water Temperature"],
      ["Earth Science > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Water Trace Elements"]
    ]
  }
}
