Position: not available
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The Sitka DEM covers the community of Sitka, Alaska, which is located in the Alexander Archipelago on Baranof Island. The DEM has a 3 arc-second (~90 meter) cell size, and is referenced to a vertical datum of mean high water. A smaller, 1/3 arc-second (~10 meter) DEM was also developed. The DEMs were built in July 2011 to support NOAA's Tsunami Program.
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DEM perspective image.
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| Name | Sitka | |||||||||
| States | Alaska | |||||||||
| Region | Alaska | |||||||||
| Extent |
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| Date Completed | 2011-07-26 | |||||||||
| Type | Coastal Inundation | |||||||||
| Horizontal Datum | WGS 84 | |||||||||
| Projection | Geographic (meters) | |||||||||
| 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 | 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 |
WARNING: DEM not to be used for navigation.