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FIELD SURVEY
environment
TRANSECT
18
30 METERS TO 100 METERS
17
MONTHLY TO ANNUAL
16
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
12
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
8
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
5
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
5
500 METERS TO 1 KILOMETER
3
ANNUAL
3
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
3
EARTH SCIENCE
2
GRID
2
IN SITU/LABORATORY INSTRUMENTS
2
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
2
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
2
LAND SURFACE
2
PROBES
2
SOIL MOISTURE/WATER CONTENT
2
SOILS
2
250 METERS TO 500 METERS
1
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
1
ENVIRONMENT
1
WEEKLY TO MONTHLY
1
biota
1
geoscientificInformation
1
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