Bathymetry of the Gulf of Mexico

Texas Sea Grant has supported the development of several bathymetric maps that integrate data collected decades ago and far more recently by agencies including the U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA) and the Harte Research Institute for Gulf of Mexico Studies (HRI) at Texas A&M University-Corpus Christi. Led by Dr. Troy Holcombe of the Texas A&M University Department of Oceanography, the maps show the shelf and slope of northwestern Gulf of Mexico, Gulf features combined with land topography in the region, and multiple banks.

Bathymetric maps have many applications, including ocean engineering and construction, the management of habitat of fish and other marine organisms, ocean research and exploration, and the prediction models of storm surge and sea level rise, among others. They also can be used to support STEM education; a model curriculum that can be used with the bathymetry maps is at left.

The links below go to large bathymetric maps of the Gulf of Mexico, while the menu of links at left lead to collections of smaller maps of individual features. Data sources are indicated in the description of each map below.

Bathymetry of the Northwestern Gulf of Mexico

This 36"x48" map covers the entire northwestern Gulf of Mexico, stretching across the Continental Shelf, Continental Slope, Deep-sea Fan, and Ocean Basin. The contour interval is 2 meters on the Continental Shelf, 10 meters across the Shelf-Slope Break, and 40 meters across the Continental Slope and Ocean Basin. Sources are the entire array of NOAA hydrographic surveys and multibeam surveys, and additional trackline data from random sources, all available from the NOAA National Geophysical Data Center. (T. L. Holcombe, W. J. Renteria, and W. R. Bryant)

Bathymetry and Land Topography of the Texas-Louisiana Coastal Region and Continental Shelf, Northwestern Gulf of Mexico

This 37" x 75" map integrates the bathymetry of the northwestern Gulf of Mexico with topographical maps of the coast from Brownsville at the southern tip of Texas to Chalmette in eastern Louisiana. Sources of bathymetry are hundreds of historic NOAA hydrographic surveys conducted over the past 75 years, archived and made available by the NOAA National Geophysical Data Center. (NAMES HERE)

Bathymetry of Twenty-Six Outer Shelf Banks, Northwestern Gulf of Mexico

This 37" x 75" map contains bathymetry of 26 separate outer-shelf banks, 25 at a 1-meter contour interval and one at a 1/2-meter contour interval. All are indexed to a large bathymetric map of the outer Continental Shelf. Sources of bathymetry are multibeam surveys conducted by USGS, NOAA and HRI in 1998-2006. Individual maps of the banks are available at the link to the left. (T.L. Holcombe, C.A. Arias, and W.R. Bryant)

Bathymetry of the South Texas Banks

Needs description here.... (T.L. Holcombe, N.C. Slowey, and L.H. Holcombe; and J.W. Tunnell, Jr., H.L. Nash, and T.C. Shirley)