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AGRICULTURE (18)
agricultural aquatic sciences, agricultural chemicals, agricultural engineering, agricultural plant science, animal commodities...
LAND SURFACE (43)
erosion/sedimentation, frozen ground, geomorphic landforms/processes, land use/land cover, landscape...
ATMOSPHERE (77)
aerosols, air quality, altitude, atmospheric chemistry, atmospheric electricity...
OCEANS (52)
aquatic sciences, bathymetry/seafloor topography, coastal processes, marine environment monitoring, marine geophysics...
BIOLOGICAL CLASSIFICATION (18)
animals/invertebrates, animals/vertebrates, bacteria/archaea, fungi, plants...
PALEOCLIMATE (11)
ice core records, land records, ocean/lake records, paleoclimate reconstructions...
BIOSPHERE (33)
aquatic ecosystems, ecological dynamics, terrestrial ecosystems, vegetation...
SOLID EARTH (19)
earth gases/liquids, geochemistry, geodetics, geomagnetism, geomorphic landforms/processes...
CLIMATE INDICATORS (16)
atmospheric/ocean indicators, biospheric indicators, cryospheric indicators, environmental vulnerability index (evi), land surface/agriculture indicators...
SPECTRAL/ENGINEERING (46)
gamma ray, infrared wavelengths, lidar, microwave, platform characteristics...
CRYOSPHERE (27)
frozen ground, glaciers/ice sheets, sea ice, snow/ice...
SUN-EARTH INTERACTIONS (10)
ionosphere/magnetosphere dynamics, solar activity, solar energetic particle flux, solar energetic particle properties...
HUMAN DIMENSIONS (40)
boundaries, economic resources, environmental governance/management, environmental impacts, habitat conversion/fragmentation...
TERRESTRIAL HYDROSPHERE (35)
glaciers/ice sheets, ground water, snow/ice, surface water, water quality/water chemistry...

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