Thaw Depth and Vegetation Radiance Measurements, Happy Valley, AK, 1994

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Data Contributors OECHEL, WALTER C. HOPE, ALLEN S. STOW, DOUGLAS A. FLEMING, J. B. Parameters ACTIVE LAYER ALPINE/TUNDRA CANOPY CHARACTERISTICS CARBON INFRARED RADIANCE PERMAFROST > Active Layer SEASONALLY FROZEN GROUND VEGETATION INDEX VISIBLE RADIANCE Instruments PROBES RADIOMETERS

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This data set contains measurements for permafrost active layer thaw depth and vegetation reflectance (red and near-infrared bandwidths) at the Happy Valley Flux Study Site in northern Alaska during the summer of 1994. Sampling was conducted in a 1000-m square grid pattern, with sample points spaced 100 m apart. Median values for thaw depths were determined from five replicate measurements using a thaw probe. Vegetation radiance values are averages of five measurements collected from an area approximately 5 square meters at each grid point. Radiometric measurements were collected with Exotech-100BX, 4-channel radiometers fit with spectral filters corresponding to the SPOT/HRV-XS satellite bandwidths.

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