US Geological Survey

US Geological Survey

Cook Inlet Basin Study Unit – Permafrost

nawqa_perm is a polygon coverage of the permafrost regions in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. The Cook Inlet Basin is located in southcentral Alaska. Values of the item PERMAFROST in the polygon attribute table indicate the relative type of permafrost for each polygon.

The purpose of this nawqa_perm was to develop a database of the various basin characteristics of the Cook Inlet Basin. This coverage, along with other coverages, will be used as a guide for selecting water-quality sampling sites. A statewide coverage of the permafrost map of Alaska was obtained from the USGS EROS field office in Anchorage. The coverage was then edited using the basin boundaries of the Cook Inlet Basin to obtain the final coverage.

Data and Resources

  • Download
    Permafrost Coverage


  • View website
    Website :: National Water Quality Assessment (NAWQA)—Cook Inlet Basin Study Unit

  • View metadata
    Metadata :: Permafrost Regions of the Cook Inlet Basin - NAWQA

Status: Complete
Type: Data
End Date: 1997/09/15
Data Types: Database, GIS
  • 01c8ceef3d596f40f05bf496ca00d929
    Published by Lisa
    2016-10-28 17:00:54 -0800
  • 01c8ceef3d596f40f05bf496ca00d929
    Updated by Lisa
    2016-10-28 17:00:51 -0800
  • Ee0a0a4e02f5cfa5b34a4bcad3d24f20
    Updated by Trail
    2015-07-18 17:46:41 -0800
  • Ee0a0a4e02f5cfa5b34a4bcad3d24f20
    Updated by Trail
    2015-07-18 14:07:45 -0800
  • Ee0a0a4e02f5cfa5b34a4bcad3d24f20
    New record created
    2015-07-14 00:02:13 -0800