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AGRICULTURE (1738)
soils, agricultural plant science, forest science, animal science, agricultural chemicals... 		LAND SURFACE (4247)
soils, topography, land use/land cover, erosion/sedimentation, surface radiative properties...
ATMOSPHERE (6137)
atmospheric temperature, atmospheric winds, atmospheric water vapor, precipitation, atmospheric pressure... 		OCEANS (5255)
ocean temperature, ocean chemistry, salinity/density, bathymetry/seafloor topography, coastal processes...
BIOLOGICAL CLASSIFICATION (3687)
animals/vertebrates, animals/invertebrates, plants, protists, bacteria/archaea... 		PALEOCLIMATE (1376)
ocean/lake records, land records, paleoclimate reconstructions, ice core records...
BIOSPHERE (5641)
ecological dynamics, aquatic ecosystems, vegetation, terrestrial ecosystems... 		SOLID EARTH (2732)
rocks/minerals, geodetics/gravity, geomagnetism, tectonics, seismology...
CLIMATE INDICATORS (352)
teleconnections, air temperature indices, drought/precipitation indices, ocean/sst indices, humidity indices... 		SPECTRAL/ENGINEERING (2065)
visible wavelengths, infrared wavelengths, radar, microwave, platform characteristics...
CRYOSPHERE (2116)
snow/ice, glaciers/ice sheets, sea ice, frozen ground... 		SUN-EARTH INTERACTIONS (347)
solar activity, ionosphere/magnetosphere dynamics, solar energetic particle properties, solar energetic particle flux...
HUMAN DIMENSIONS (3436)
environmental impacts, boundaries, land use/land cover, infrastructure, economic resources... 		TERRESTRIAL HYDROSPHERE (3071)
surface water, water quality/water chemistry, snow/ice, ground water, glaciers/ice sheets...
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