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FIELD SURVEY GRID MONTHLY TO ANNUAL 30 METERS TO 100 METERS biota EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA TRANSECT IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES ANNUAL 500 METERS TO 1 KILOMETER environment EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER geoscientificInformation EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE KITE 1 KILOMETER EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE 250 METERS TO 500 METERS WEEKLY TO MONTHLY Arctic Tundra Area/locality CALM DATE/TIME EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > LIDAR/LASER SOUNDERS > LIDAR > LIGHT DETECTION AND RANGING EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER