Circum-Arctic map of permafrost and ground-ice conditions, Permafrost Discovery Gateway, 2001-2002

Data are available for download at http://arcticdata.io/data/10.18739/A2MG7FX35 To download all files in the command line, run the following command in a terminal: wget -r -np -nH --cut-dirs=3 -R '\?C=' -R robots.txt http://arcticdata.io/data/10.18739/A2MG7FX35 To download only a subdirectory of the archived files, add the subdirectory to the end of the URL above. The circum-Arctic permafrost and ground ice data from Brown et al. 2002 contributes to a unified international data set that depicts the distribution and properties of permafrost and ground ice in the Northern Hemisphere (20 degrees North to 90 degrees North). This data is archived at the National Snow and Ice data center: https://nsidc.org/data/ggd318/versions/2. A subset of this dataset that represents permafrost and ground ice coverage from approximately 60 degrees North to 90 degrees north was processed and visualized for the Permafrost Discovery Gateway, an online platform that aims to make big geospatial permafrost data accessible to enable knowledge-generation by researchers and the public. The data subset was cleaned, and the geometries were reprojected and processed into GeoPackage tiles that conform to the WGS1984Quad Tile Matrix Set. The GeoPackages are then rasterized at a range of zoom levels with summarized permafrost and ground ice coverage attributes for the lower zoom levels. Researchers, policy-makers, students, and community members can explore this data dynamically of the Permafrost Discovery Gateway Imagery Viewer and overlay it with other geospatial data layers. Access the Permafrost Discovery Gateway Imagery Viewer here: https://arcticdata.io/catalog/portals/permafrost Brown, J., O. Ferrians, J. A. Heginbottom, and E. Melnikov. (2002). Circum-Arctic Map of Permafrost and Ground-Ice Conditions, Version 2 [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. https://doi.org/10.7265/skbg-kf16. Date Accessed 08-30-2023.