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Open-File Report 2007–1051

Topobathymetric Data for Tampa Bay, Florida

By D. Tyler, D.G. Zawada, A. Nayegandhi, J.C. Brock, M.P. Crane, K.K. Yates, and K.E.L. Smith

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Open-File Report
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Topobathymetric data (“topobathy”) are a merged rendering of both topography (land elevation) and bathymetry (water depth) to provide a single product useful for inundation mapping and a variety of other applications. These data were developed using one topographic and two bathymetric datasets collected at different dates. Topography was obtained from the U.S. Geological Survey's (USGS) National Elevation Dataset (NED). Bathymetry was provided by NOAA's GEOphysical DAta System (GEODAS). For several nearshore areas within the bay GEODAS data were replaced with high resolution bathymetry acquired by NASA's Experimental Advanced Airborne Research Lidar (EAARL). These data and detailed metadata can be obtained from the USGS Web site: Data from EAARL and NED were collected under the auspices of the USGS Gulf of Mexico Integrated Science Tampa Bay Study (

Revised August 2, 2012

Posted May 2007

For ease in accessibility and Web viewing, the PDF presented here is low-resolution quality (9.5 MB). A high-resolution, print-quality version of this poster is also available (298 MB).

For additional information contact:

Kathryn E.L. Smith
U.S. Geological Survey
600 4th Street South
St. Petersburg, FL 33701
Phone: 727-803-8747 x3073

Suggested citation:

Tyler, D., Zawada, D.G., Nayegandhi, A., Brock, J.C., Crane, M.P., Yates, K.K., and Smith, K.E.L., 2007, Topobathymetric data for Tampa Bay, Florida: U.S. Geological Survey Open-File Report 2007-1051 (revised).

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