Akutan, Alaska 8 arc-second Coastal Digital Elevation Model

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami Hazard Mitigation Program's (NTHMP) efforts to improve community preparedness and hazard mitigation. These integrated bathymetric-topographic DEMs are used to support tsunami and coastal inundation mapping. 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 various vertical and horizontal datums depending on the specific modeling requirements of each State. For specific datum information on each DEM, refer to the appropriate DEM documentation. Cell sizes also vary depending on the specification required by modelers in each State, but typically range from 8/15 arc-second (~16 meters) to 8 arc-seconds (~240 meters).

Data and Resources

Additional Info

Field Value
Last Updated June 19, 2019, 00:39
Created June 10, 2017, 17:24
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 -164.97
bbox-north-lat 52.55
bbox-south-lat 54.41
bbox-west-long -169.63
contact-email dem.info@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2009-04-20"}]
frequency-of-update asNeeded
graphic-preview-description Thumbnail of DEM
graphic-preview-file https://maps.ngdc.noaa.gov/thumbnails/DEM/538.png
graphic-preview-type PNG
guid gov.noaa.ngdc.mgg.dem:538
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 2019-06-06
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": [[[-169.63, 54.41], [-164.97, 54.41], [-164.97, 52.55], [-169.63, 52.55], [-169.63, 54.41]]]}
spatial-data-service-type ArcGIS Image Service
spatial-reference-system urn:ogc:def:crs:EPSG::4326
spatial_harvester true
temporal-extent-begin 1896-01-01
temporal-extent-end 2008-01-01