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FIELD SURVEY
62
30 METERS TO 100 METERS
53
biota
51
MONTHLY TO ANNUAL
48
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
45
GRID
41
TRANSECT
38
ANNUAL
24
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
22
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
21
environment
20
500 METERS TO 1 KILOMETER
19
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
15
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
14
KITE
14
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
10
250 METERS TO 500 METERS
8
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
8
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
7
WEEKLY TO MONTHLY
7
geoscientificInformation
7
EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > LIDAR/LASER SOUNDERS > LIDAR > LIGHT DETECTION AND RANGING
4
EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER
4
IN SITU/LABORATORY INSTRUMENTS
4
PROBES
4
EARTH SCIENCE
3
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
2
ENVIRONMENT
2
LAND SURFACE
2
SOIL MOISTURE/WATER CONTENT
2
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