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FIELD SURVEY
45
MONTHLY TO ANNUAL
36
GRID
30
30 METERS TO 100 METERS
24
biota
23
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
22
TRANSECT
22
500 METERS TO 1 KILOMETER
21
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA
21
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
17
environment
16
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE
14
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
10
IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE
10
WEEKLY TO MONTHLY
10
geoscientificInformation
10
250 METERS TO 500 METERS
7
ANNUAL
6
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
5
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
4
KITE
4
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
3
ENVIRONMENT
2
1 KILOMETER
1
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