Sitka AK 1-3 arc-second MHW DEM Sitka, Alaska Coastal Digital Elevation Model NOAA Tsunami Inundation Gridding Project

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and modeling efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. 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 the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEMs range from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).

Data and Resources

  • View website
    Website :: GeoPortal Details Page

    http://seakgis03.alaska.edu/geoportal/catalog/search/resource/details.page?uuid={ACDCDBD8-7DDD-49CE-8972-C4FF89D0F6DE}

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    Website

    http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/1844?gridFormat=ESRI+Arc+ASCII

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    Website

    http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/1844

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    Website

    http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html

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    Metadata :: Source

    http://seakgis03.alaska.edu/geoportal/csw?getxml=%7BACDCDBD8-7DDD-49CE-8972-C4FF89D0F6DE%7D

Status: Complete
Start Date: 1902/12/31
Type: Data
End Date: 2011/12/31
Primary Contact
Eakins, Barry
Research Scientist
Email: Barry.Eakins@noaa.gov
Work: 303-497-6505
Other Contacts
Collection
Southeast Alaska GIS Library

Direct Record Link
http://southeast.epscor.alaska.edu/catalogs/9477-sitka-ak-1-3-arc-second-mhw-dem-sitka-alaska-c
  • Import completed 2014-05-19 10:59:58 -0800
    2014-05-19 10:59:58 -0800
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