Ecological Mapping and Permafrost Database for Northern Alaska

This database is an update of the geodatabase and shapefiles associated with the prior Landscape Level Ecological Mapping of Northern Alaska (NOAK). It includes recoding of some attributes as well as the addition of modeled permafrost map layers. A database of permafrost borehole information is also provided.

GIS data are provided for download in geodatabase and shapefile format and contain the following layers: permafrost extent, thermokarst landforms, maximum settlement potential, massive ice, segregated ice, biome, ecoregion, ecological subsection, ecological section, ecological landscape, soil landscape, physiography, lithology, general geology, average elevation (m), and mean annual air temperature (c).