NOAA/NESDIS/NGDC
NOAA/NESDIS/NGDC
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Port Alexander, AK 1/3 arc-second MHW DEM

The Port Alexander DEM integrates bathymetry and topography in the area surrounding Port Alexander on the southeastern corner of Baranof Island in southeast Alaska. The DEM has a 1/3 arc-second (~10 meter) cell size, and is referenced to a vertical datum of mean high water. It was built in March 2011 to support NOAA's Tsunami Program.



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DEM perspective image. 

Name Port Alexander
States Alaska
Region Gulf of Alaska
Extent
56.71
-135.35 -134.03
55.53
Date Completed 2011-03-31
Type Coastal Inundation
Horizontal Datum WGS 84
Projection Geographic (degrees)
Vertical Datum MHW (meters)
Vertical Transformation Source elevation data transformed vertically using a constant offset derived from NOAA tide stations.
Coverage Bathy-topo
Cell Size 1/3 arc-second
Registration Grid-node
Version 1
Source NOAA / NGDC / MGG
Developer NOAA / NGDC / MGG
Project NOAA Tsunami Inundation
Contact Barry W Eakins @ NOAA / NGDC
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DEM Restrictions

WARNING: DEM not to be used for navigation.

How to cite this DEM

Love, M.R., B.W. Eakins, L.A. Taylor, K.S. Carignan, D. Friday, and P.R. Grothe, 2012. Digital Elevation Model of Port Alexander, Alaska: Procedures, Data Sources and Analysis, NOAA Technical Memorandum NESDIS NGDC-63, U.S. Dept. of Commerce, Boulder, CO, 35 pp.
Questions or Comments: dem.info@noaa.gov