NOAA NCEI Coastal Digital Elevation Model - 1/9 Arc-Second Resolution Bathymetric-Topographic Tiles

Metadata Updated: February 27, 2019

NOAA's National Centers for Environmental Information (NCEI) is developing a suite of digital elevation models (DEMs) for the U.S. coast to support a variety of NOAA missions, including improved inundation modeling and mapping, habitat characterization, and visualization of Earth's surface.

      The DEMs are being developed according to a 0.25 degree tiling scheme. The spatial resolution
      of the tiles "telescopes" from the coastal zone to the deep ocean floor at 1/9, 1/3, 1 and 3 arc-second grid resolution.
      Only the 1/9 arc-second DEM tiles integrate both bathymetric and topographic data; all other resolutions map bathymetry only.
      The tiling of the DEMs facilitates targeted, rapid updates as new coastal and marine elevation data are acquired and become available.
      Bathymetric and topographic data utilized for DEM creation originate from a variety of sources, including (but not limited to) the NOAA Office
      of Coast Survey, NOAA National Geodetic Survey, NOAA Office for Coastal Management, U.S. Geological Survey, and the U.S. Army Corps of Engineers.

      The DEMs are referenced vertically to the North American Vertical Datum of 1988. The vertical units of the DEMs are meters. The DEMs are referenced horizontally to the North
      American Datum of 1983. The horizontal units of the data are decimal degrees.

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


Metadata Date February 1, 2018
Metadata Created Date February 27, 2019
Metadata Updated Date February 27, 2019
Reference Date(s) December 9, 2014 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date February 1, 2018
Metadata Created Date February 27, 2019
Metadata Updated Date February 27, 2019
Reference Date(s) December 9, 2014 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
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 -65
Bbox North Lat 52
Bbox South Lat 23
Bbox West Long -127
Coupled Resource
Frequency Of Update asNeeded
Guid gov.noaa.ngdc.mgg.dem:999919
Harvest Object Id 891699fa-47bc-4d8e-b480-dd44d649edee
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
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.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4269
Spatial Harvester True
Temporal Extent Begin 2014-01-01
Temporal Extent End 2018-01-01

Didn't find what you're looking for? Suggest a dataset here.