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IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL DEPTH PROBE
environment
3
30 METERS TO 100 METERS
2
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
2
FIELD SURVEY
2
MONTHLY TO ANNUAL
2
TRANSECT
2
DAILY TO WEEKLY
1
EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > PERMAFROST
1
LESS THAN 1 METER
1
MANNED FIELD STATION
1
POINT
1
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