Pre-ABoVE: Remotely Sensed Active Layer Thickness, Prudhoe Bay, Alaska, 1992-2000

Description

Active layer thickness (ALT) is a critical parameter for monitoring the status of permafrost that is typically measured at specific locations using probing, in situ temperature sensors, or other ground-based observations. The thickness of the active layer is the average annual thaw depth, in permafrost areas, due to solar heating of the surface. This data set includes the mean Remotely Sensed Active Layer Thickness (ReSALT) over years 1992 to 2000 for an area near Prudhoe Bay, Alaska. The data were produced by an Interferometric Synthetic Aperture Radar (InSAR) technique that measures seasonal surface subsidence and infers ALT. ReSALT estimates were validated by comparison with ground-based ALT measurements at multiple sites. These results indicate remote sensing techniques based on InSAR could be an effective way to measure and monitor ALT over large areas on the Arctic coastal plain.These data provide gridded (100-m) estimates of active layer thickness (cm; ALT), seasonal subsidence (cm) and subsidence trend (mm/yr), as well as calculated uncertainty in each of these parameters. This data set was developed in support of NASA's Arctic-Boreal Vulnerability Experiment (ABoVE) field campaign.The data are presented in one netCDF (*.nc) file.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1267
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/above/InSAR_Prudhoe_Bay/
34 Browse Image https://daac.ornl.gov/graphics/browse/sdat-tds/1267_1_fit.png
21 ABoVE project site https://above.nasa.gov
21 Data Set Documentation https://data.ornldaac.earthdata.nasa.gov/public/above/InSAR_Prudhoe_Bay/comp/ReSALT_prudhoe.txt
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ABOVE/guides/InSAR_Prudhoe_Bay.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1267
33 Data Set Documentation https://data.ornldaac.earthdata.nasa.gov/public/above/InSAR_Prudhoe_Bay/comp/InSAR_Prudhoe_Bay.pdf
21 The THREDDS location for this Collection. https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/1267/catalog.html

Tags

  • topography
  • land-surface
  • cryosphere
  • frozen-ground
  • earth-science

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