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PERMAFROST|ANALYSIS|COMPUTER MODEL
ADMINISTRATIVE DIVISIONS|SURVEYS|HUMAN OBSERVER
1
ALPINE/TUNDRA|AVHRR|NOAA-15, -16, -17, -18, and -19 SATELLITES
1
ANALYSIS
1
ANGIOSPERMS (FLOWERING PLANTS)
1
ANGIOSPERMS (FLOWERING PLANTS)|ANALYSIS|COMPUTER MODEL
1
Antarctic Circle
1
Arctic Circle
1
CARBON DIOXIDE|ANALYSIS|LABORATORY
1
CARBON|ANALYSIS|COMPUTER MODEL
1
COMPUTER MODEL
1
CONTOURS|GPS (GLOBAL POSITIONING SYSTEM)|GROUND-BASED OBSERVATION
1
ECOSYSTEM FUNCTIONS|ANALYSIS|COMPUTER MODEL
1
ERS-1 (EUROPEAN REMOTE SENSING SATELLITE-1)
1
FIRN|MODIS|TERRA / AQUA
1
GEOMAGNETIC POLES|ANALYSIS|GEOMAGNETIC OBSERVATORIES
1
GLACIER ELEVATION/ICE SHEET ELEVATION|RADAR ALTIMETER|ERS-1 (EUROPEAN REMOTE SENSING SATELLITE-1)
1
GLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHY|ANALYSIS|DIGITAL ELEVATION MODEL
1
GLACIERS
1
GLACIERS|ASTER|TERRA (AM-1)
1
GLACIERS|ETM+|LANDSAT-7
1
GLACIERS|RADAR ALTIMETER|ERS-1 (EUROPEAN REMOTE SENSING SATELLITE-1)
1
GROUND ICE|ANALYSIS|COMPUTER MODEL
1
ICE DEPTH/THICKNESS|ICE PENETRATING RADAR|AIRCRAFT
1
ICE EXTENT|SCANNING MULTI-CHANNEL MICROWAVE RADIOMETER (SMMR)|DMSP SATELLITES
1
ICE EXTENT|SPECIAL SENSOR MICROWAVE/IMAGER (SSM/I)|DMSP SATELLITES
1
ICE GROWTH/MELT|SCANNING MULTI-CHANNEL MICROWAVE RADIOMETER (SMMR)|DMSP SATELLITES
1
ICE GROWTH/MELT|SPECIAL SENSOR MICROWAVE/IMAGER (SSM/I)|DMSP SATELLITES
1
ICE SHEETS|MODIS|TERRA / AQUA
1
ICE SHEETS|RADAR ALTIMETER|ERS-1 (EUROPEAN REMOTE SENSING SATELLITE-1)
1
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