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EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS
EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > RIVERS/STREAM HABITAT
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EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS
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EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS > RIPARIAN WETLANDS
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EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOGEOCHEMICAL CYCLES
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EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > NUTRIENT CYCLING
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EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
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EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS
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EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > RIPARIAN WETLANDS
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EARTH SCIENCE > CLIMATE INDICATORS > CRYOSPHERIC INDICATORS > SNOW DEPTH
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EARTH SCIENCE > CLIMATE INDICATORS > LAND SURFACE/AGRICULTURE INDICATORS > SOIL TEMPERATURE
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EARTH SCIENCE > CLIMATE INDICATORS > TERRESTRIAL HYDROSPHERE INDICATORS > FRESHWATER RUNOFF
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EARTH SCIENCE > CLIMATE INDICATORS > TERRESTRIAL HYDROSPHERE INDICATORS > PERMAFROST MELT
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EARTH SCIENCE > CLIMATE INDICATORS > TERRESTRIAL HYDROSPHERE INDICATORS > SNOW COVER DEGRADATION
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EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
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EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERMAFROST
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > SOIL TEMPERATURE
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EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > FREEZE/THAW
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EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > PERMAFROST
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EARTH SCIENCE > LAND SURFACE > FROZEN GROUND > ACTIVE LAYER
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EARTH SCIENCE > LAND SURFACE > FROZEN GROUND > PERMAFROST
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > PERMAFROST
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > RIVERS/STREAMS
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > RUNOFF
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER CHEMISTRY
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATER CHANNELS
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WETLANDS
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY
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EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CARBON DIOXIDE
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