New Orleans, Louisiana Coastal Digital Elevation Model

Metadata Updated: February 6, 2017

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions in the Gulf of Mexico. These integrated bathymetric-topographic DEMs were developed for NOAA Coastal Survey Development Laboratory (CSDL) through the American Recovery and Reinvestment Act (ARRA) of 2009 to evaluate the utility of the Vertical Datum Transformation tool (VDatum), developed jointly by NOAA's Office of Coast Survey (OCS), National Geodetic Survey (NGS), and Center for Operational Oceanographic Products and Services (CO-OPS). Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. Coastal Services Center (CSC), the U.S. Office of Coast Survey (OCS), the U.S. Army Corps of Engineers (USACE), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of North American Vertical Datum of 1988 (NAVD 88) or Mean High Water (MHW) and horizontal datum of North American Datum of 1983 (NAD 83). Cell size ranges from 1/3 arc-second (~10 meters) to 1 arc-second (~30 meters). The NOAA VDatum DEM Project was funded by the American Recovery and Reinvestment Act (ARRA) of 2009 (

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Metadata Date June 28, 2016
Metadata Created Date September 26, 2015
Metadata Updated Date February 6, 2017
Reference Date(s) April 1, 2010 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

ArcGIS Hillshade DEM

Additional Metadata

Resource Type Dataset
Metadata Date June 28, 2016
Metadata Created Date September 26, 2015
Metadata Updated Date February 6, 2017
Reference Date(s) April 1, 2010 (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
Bbox East Long -89.3
Bbox North Lat 30.5
Bbox South Lat 29.7
Bbox West Long -90.65
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description ArcGIS Hillshade DEM
Graphic Preview File,29.7,-89.3,30.5&bboxSR=4326&size=300,300&imageSR=102100&format=png32&interpolation= RSP_BilinearInterpolation&renderingRule={"rasterFunction":"ColorHillshade"}&f=image
Graphic Preview Type PNG
Guid gov.noaa.ngdc.mgg.dem:680
Harvest Object Id 1b5d17d1-b83a-445b-9464-dbe04a4da075
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 Geophysical Data Center. Not subject to copyright protection within the United States., While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type ArcGIS Image Service
Spatial Reference System urn:ogc:def:crs:EPSG::5866
Spatial Harvester True
Temporal Extent Begin 1888-01-01
Temporal Extent End 2009-01-01

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