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FIELD SURVEY
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MONTHLY TO ANNUAL
61
GRID
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30 METERS TO 100 METERS
58
biota
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TRANSECT
49
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
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IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
44
ANNUAL
37
500 METERS TO 1 KILOMETER
31
environment
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geoscientificInformation
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EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
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EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
21
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
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IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
17
KITE
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1 KILOMETER
12
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
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WEEKLY TO MONTHLY
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250 METERS TO 500 METERS
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EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
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IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
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EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > LIDAR/LASER SOUNDERS > LIDAR > LIGHT DETECTION AND RANGING
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EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER
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IN SITU/LABORATORY INSTRUMENTS
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EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
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