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Gulf of Mexico Region—Highlighting Low-Lying Areas Derived from USGS Digital Elevation Data


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In support of U.S. Geological Survey (USGS) disaster preparedness efforts, this map depicts a color shaded relief representation of the area surrounding the Gulf of Mexico. The first 30 feet of relief above mean sea level are displayed as brightly colored 5-foot elevation bands, which highlight low-elevation areas at a coarse spatial resolution. Standard USGS National Elevation Dataset (NED) 1 arc-second (nominally 30-meter) digital elevation model (DEM) data are the basis for the map, which is designed to be used at a broad scale and for informational purposes only. The NED data were derived from the original 1:24,000-scale USGS topographic map bare-earth contours, which were converted into gridded quadrangle-based DEM tiles at a [...]


(other) :
John J Kosovich

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SIM3048_GulfCoast.pdf 89.93 MB
metadata_stkgulf90.txt 11.14 KB
Original FGDC Metadata

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Uploaded October 23, 2014 by author John Kosovich

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