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AGRICULTURE (3)
agricultural engineering , forest science , soils ...
LAND SURFACE (90)
erosion/sedimentation , frozen ground , geomorphic landforms/processes , land use/land cover , landscape ...
ATMOSPHERE (274)
aerosols , air quality , altitude , atmospheric chemistry , atmospheric pressure ...
OCEANS (138)
bathymetry/seafloor topography , marine geophysics , ocean chemistry , ocean circulation , ocean heat budget ...
BIOLOGICAL CLASSIFICATION (10)
animals/invertebrates , plants , protists ...
SOLID EARTH (31)
geodetics , geomagnetism , geomorphic landforms/processes , gravity/gravitational field , rocks/minerals/crystals ...
BIOSPHERE (189)
ecological dynamics , ecosystems , vegetation ...
SPECTRAL/ENGINEERING (192)
gamma ray , infrared wavelengths , lidar , microwave , platform characteristics ...
CLIMATE INDICATORS (6)
atmospheric/ocean indicators ...
SUN-EARTH INTERACTIONS (67)
ionosphere/magnetosphere dynamics , solar activity , solar energetic particle flux , solar energetic particle properties ...
CRYOSPHERE (15)
glaciers/ice sheets , sea ice , snow/ice ...
TERRESTRIAL HYDROSPHERE (12)
ground water , snow/ice , surface water ...
HUMAN DIMENSIONS (24)
environmental governance/management , environmental impacts , habitat conversion/fragmentation , natural hazards , public health ...

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