Alaska Geospatial Data Clearinghouse
 
U.S. Geological Survey - Water Resources of Alaska

 

Statewide Coverages

     Alaska Precipitation

    ak_precip is a polygon coverage created from a 1:2,000,000 scale map showing lines of equal annual precipitation in Alaska. The precipitation map was prepared in 1994 as part of a flood frequency study of the streams and rivers of Alaska and was digitized into a GIS format.

 

     Hydrologic Unit Map
    Hydrologic Unit Codes Map for the State of Alaska.
 

 

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