NOAA@NSIDC is pleased to announce that the Glacier Covered Area for the State of Alaska, 1985-2020, Version 1 data set is now available at the National Snow and Ice Data Center (NSIDC). This data set captures changes in glacier covered area across the state of Alaska for the period of 1985-2020. The data set includes 18 biannual shapefiles each for overall glacier covered area, supraglacial debris area, and debris-free glacier covered area. Within the shapefiles, the polygon attributes include information from the Randolph Glacier Inventory (RGI Consortium, 2017) such as RGI glacier ID, latitude, longitude, minimum and maximum elevation, slope, and aspect. The overall glacier covered area shapefiles include the entire state of Alaska. The supraglacial debris area and debris-free glacier covered area shapefiles do not include the Brooks Range. These data were derived from a time series of Landsat data, supplemented with elevation data from the Alaska 5 m IfSAR digital elevation model (DEM).
The data and documentation can be accessed from the data set landing page: Glacier Covered Area for the State of Alaska, 1985-2020, Version 1
Date Set DOI: doi:10.7265/8esq-w553