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FIELD SURVEY
83
30 METERS TO 100 METERS
69
MONTHLY TO ANNUAL
64
biota
64
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
56
GRID
51
TRANSECT
51
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
37
ANNUAL
27
500 METERS TO 1 KILOMETER
25
environment
24
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
21
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
20
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
19
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
17
KITE
15
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
11
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
11
WEEKLY TO MONTHLY
10
geoscientificInformation
10
250 METERS TO 500 METERS
8
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
5
EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > LIDAR/LASER SOUNDERS > LIDAR > LIGHT DETECTION AND RANGING
4
EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER
3
ENVIRONMENT
2
1 KILOMETER
1
EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
1
UNKNOWN
1
elevation
1
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