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Accession Number
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PB2012-108808
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Title
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Digital Elevation Models of the Northern Gulf Coast: Procedures, Data Sources and Analysis
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Publication Date
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Aug 2012
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Media Count
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48p
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Personal Author
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C. J. Amante K. S. Carignan L. A. Taylor M. R. Love
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Abstract
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In December 2010, the National Geophysical Data Center (NGDC), an office of the National Oceanic and Atmospheric Administration (NOAA), has developed two bathymetric-topographic digital elevation models (DEMs) of the Northern Gulf Coast. The DEMs were developed for NOAA's Coast 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) (http://datum.noaa.gov/). The 1 arc-second DEM referenced to North American Vertical Datum of 1988 (NAVD 88) was carefully developed and evaluated. A NAVD 88 to mean high water (MHW) 1/3 arc-second conversion grid derived from VDatum project area was then created to model the relationship between NAVD 88 and MHW in the Gulf of Mexico region. NGCD combined the NAVD 88 DEM and the conversion grid to develop a 1/3 arc-second MHW DEM. The NAVD 88 DEM was generated from diverse digital datasets in the region and the DEMs will be used for storm surge inundation and sea level rise modeling. This report provides a summary of the data sources and methodology used in developing the two Northern Gulf Coast DEMs.
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Keywords
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Bathymetry
Data sources
Digital elevation models
Gulf Coast
Methodology
Procedures
Topography
Tsunamis
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Source Agency
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National Oceanic and Atmospheric Administration
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NTIS Subject Category
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55 - Atmospheric Sciences
48C - Natural Resource Surveys
47 - Ocean Sciences & Technology
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Corporate Author
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National Geophysical Data Center, Boulder, CO. Marine Geology and Geophysics Div.
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Document Type
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Technical report
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Title Note
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N/A
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NTIS Issue Number
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1226
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Contract Number
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N/A
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