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MONTHLY TO ANNUAL
FIELD SURVEY
24
biota
20
30 METERS TO 100 METERS
19
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
17
TRANSECT
17
GRID
10
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
8
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
8
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
8
250 METERS TO 500 METERS
5
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
5
environment
5
500 METERS TO 1 KILOMETER
3
EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > LIDAR/LASER SOUNDERS > LIDAR > LIGHT DETECTION AND RANGING
2
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
2
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
2
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
2
KITE
2
ENVIRONMENT
1
elevation
1
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