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    • Astoria, Oregon 1/3 arc-second MHW Coastal Digital Elevation Model

    Metadata Updated: June 23, 2023

    NOAA's National Centers for Environmental Information (NCEI) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support individual coastal States as part of the Pacific Marine Environmental Laboratory's (PMEL) efforts to support NOAA's tsunami forecast system and for tsunami inundation modeling, improve community preparedness and hazard mitigation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources including: NOAA; the U.S. Geological Survey (USGS); and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical datum of MHW and horizontal datum of World Geodetic System 1984 geographic (WGS 84). Grid spacing for the DEM is 1/3 arc-second (~10 meters).

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date March 25, 2022
    Metadata Created Date November 12, 2020
    Metadata Updated Date June 23, 2023
    Reference Date(s) June 18, 2016 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NGDC MGG DEM

    Other Data Resources

    Graphic Preview

    Thumbnail of DEM

    Additional Metadata

    Resource Type Dataset
    Metadata Date March 25, 2022
    Metadata Created Date November 12, 2020
    Metadata Updated Date June 23, 2023
    Reference Date(s) June 18, 2016 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.dem:5490
    Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
    Bbox East Long -123.60
    Bbox North Lat 47.16
    Bbox South Lat 45.90
    Bbox West Long -124.59
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Thumbnail of DEM
    Graphic Preview File https://gis.ngdc.noaa.gov/arcgis/rest/directories/arcgisoutput/DEM_mosaics/DEM_global_mosaic_hillshade_ImageServer/_ags_959a5161_ba79_4af7_bf9e_bd1f5ed86da4.jpg
    Graphic Preview Type JPG
    Harvest Object Id 2823a1d0-db4c-4ca1-9d46-e37bc5baf31d
    Harvest Source Id 4969dc3d-1269-48b4-a254-dfee8489c5c9
    Harvest Source Title NGDC MGG DEM
    Licence Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series., Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
    Lineage
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-124.59, 45.9], [-123.6, 45.9], [-123.6, 47.16], [-124.59, 47.16], [-124.59, 45.9]]]}
    Progress completed
    Spatial Data Service Type ArcGIS Image Service
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 1933-01-01
    Temporal Extent End 2014-04-23

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