Southeast Alaska AK 8-3 arc-second MHHW DEM Digital Elevation Model of Southeast Alaska, Integrating Bathymetric and Topographic Datasets NTHMP DEM Project

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami Hazard Mitigation Program's (NTHMP) efforts to improve community preparedness and hazard mitigation. These integrated bathymetric-topographic DEMs are used to support tsunami and coastal inundation mapping. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to various vertical and horizontal datums depending on the specific modeling requirements of each State. For specific datum information on each DEM, refer to the appropriate DEM documentation. Cell sizes also vary depending on the specification required by modelers in each State, but typically range from 8/15 arc-second (~16 meters) to 8 arc-seconds (~240 meters).

Data and Resources

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    Metadata :: Source

Status: Complete
Start Date: 1882/12/31
Type: Data
End Date: 2010/12/31
Primary Contact
Eakins, Barry
Research Scientist
Work: 303-497-6505
Other Contacts
Southeast Alaska GIS Library

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  • Import completed 2014-05-19 10:59:54 -0800
    2014-05-19 10:59:54 -0800