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AGRICULTURE (86)
agricultural aquatic sciences , agricultural chemicals , agricultural engineering , agricultural plant science , animal commodities ...
LAND SURFACE (132)
erosion/sedimentation , geomorphic landforms/processes , land use/land cover , landscape , soils ...
ATMOSPHERE (37)
aerosols , air quality , altitude , atmospheric chemistry , atmospheric phenomena ...
OCEANS (33)
aquatic sciences , bathymetry/seafloor topography , coastal processes , marine sediments , ocean circulation ...
BIOLOGICAL CLASSIFICATION (34)
animals/invertebrates , animals/vertebrates , plants ...
PALEOCLIMATE (1)
land records , ocean/lake records ...
BIOSPHERE (151)
ecological dynamics , ecosystems , vegetation ...
SOLID EARTH (7)
earth gases/liquids , geochemistry , geomagnetism , geomorphic landforms/processes , geothermal dynamics ...
CLIMATE INDICATORS (1)
atmospheric/ocean indicators ...
SPECTRAL/ENGINEERING (64)
infrared wavelengths , visible wavelengths ...
CRYOSPHERE (5)
glaciers/ice sheets , sea ice , snow/ice ...
TERRESTRIAL HYDROSPHERE (52)
glaciers/ice sheets , ground water , snow/ice , surface water , water quality/water chemistry ...
HUMAN DIMENSIONS (265)
boundaries , economic resources , environmental governance/management , environmental impacts , habitat conversion/fragmentation ...

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