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EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
14
FIELD SURVEY
13
MONTHLY TO ANNUAL
13
GRID
12
250 METERS TO 500 METERS
6
30 METERS TO 100 METERS
6
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
6
500 METERS TO 1 KILOMETER
5
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
5
TRANSECT
5
ANNUAL
3
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
3
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
3
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
3
KITE
3
1 KILOMETER
1
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
1
ENVIRONMENT
1
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
1
WEEKLY TO MONTHLY
1
environment
1
geoscientificInformation
1
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