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MONTHLY TO ANNUAL
FIELD SURVEY
39
30 METERS TO 100 METERS
33
TRANSECT
29
biota
29
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
25
GRID
17
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
16
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
15
environment
15
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
14
250 METERS TO 500 METERS
7
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
7
500 METERS TO 1 KILOMETER
6
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
5
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
4
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
4
KITE
4
EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > LIDAR/LASER SOUNDERS > LIDAR > LIGHT DETECTION AND RANGING
2
ENVIRONMENT
2
1 KILOMETER
1
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
1
EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
1
WEEKLY TO MONTHLY
1
elevation
1
geoscientificInformation
1
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