San Juan Islands, Washington Coastal Digital Elevation Model

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 individual coastal States as part of the National Tsunami Hazard Mitigation Program's (NTHMP) efforts to improve community preparedness and hazard mitigation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources including: NGDC; the U.S. Geological Survey (USGS); Naval Oceanographic Office (NAVOCEANO); NOAA's Coastal Service Center; and other federal, state, and local government agencies, academic institutions, and private companies. The DEM is referenced to the vertical tidal datum of Mean High Water (MHW).

Data and Resources

Additional Info

Field Value
Last Updated November 16, 2017, 17:52
Created June 10, 2017, 17:28
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 -122.60
bbox-north-lat 48.86
bbox-south-lat 48.25
bbox-west-long -123.33
contact-email dem.info@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2011-12-23"}]
frequency-of-update asNeeded
graphic-preview-description Perspective view of DEM
graphic-preview-file https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_global_mosaic_hillshade/ImageServer/exportImage?bbox=-123.33,48.25,-122.60,48.86&size=300,300&format=png32&interpolation=%20RSP_BilinearInterpolation&renderingRule=%7B%22rasterFunction%22:%22ColorHillshade%22%7D&f=image
graphic-preview-type JPEG
guid gov.noaa.ngdc.mgg.dem:1961
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 Geophysical Data Center. Not subject to copyright protection within the United States."]
metadata-date 2017-11-13
metadata-language
progress completed
resource-type dataset
responsible-party [{"name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-123.33, 48.25], [-122.6, 48.25], [-122.6, 48.86], [-123.33, 48.86], [-123.33, 48.25]]]}
spatial-data-service-type ArcGIS Image Service
spatial-reference-system urn:ogc:def:crs:EPSG::2927
spatial_harvester true
temporal-extent-begin 1883-01-01
temporal-extent-end 2010-01-01