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


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.

Data access

ORDER data for delivery by FTP

Additional information

Related projects: ARCSS
Observational frequency: other
Spatial type: grid
Categories: Arctic, Land Character.
Platforms: Vegetation Sampling
Documentation: index.html [11 KB]

Temporal coverage

Begin datetime: 1994-06-06 00:00:00, End datetime: 1994-07-17 23:59:59

Spatial coverage

Minimum latitude: 69.141000, Minimum longitude: -148.863000
Maximum latitude: 69.149000, Maximum longitude: -148.840000


Point of contact

Walter C. Oechel
Department of Biology
E-Mail address: woechel at mail dot sdsu dot edu