USGS - science for a changing world

Open-File Report 2007-1422

Published 2007

EAARL Topography—Gulf Islands National Seashore-Florida

John C. Brock,1 C. Wayne Wright,2 Amar Nayegandhi ,3 Matt Patterson ,4 Iris Wilson,4 and Laurinda J. Travers,5

1USGS FISC, St. Petersburg, FL,
2NASA, Wallops Flight Facility, Wallops Island, VA,
3ETI Professionals, USGS, St. Petersburg, FL,
4NPS, South Florida/Caribbean Network Inventory and Monitoring Program, Miami, FL,
5Eckerd College, USGS, St. Petersburg, FL

Project Description

This Web site contains 33 lidar-derived bare earth topography maps and GIS files for the Gulf Islands National Seashore-Florida.

These lidar-derived topography maps were produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, FISC St. Petersburg, Florida, the National Park Service (NPS), Gulf Coast Network, Network Inventory and Monitoring Program, and the National Aeronautics and Space Administration (NASA) Wallops Flight Facility. One objective of this research is to create techniques to survey coral reefs and barrier islands for the purposes of geomorphic change studies, habitat mapping, ecological monitoring, change detection, and event assessment. As part of this project, data from an innovative instrument under development at the NASA Wallops Flight Facility, the NASA Experimental Airborne Advanced Research Lidar (EAARL) are being used. This sensor has the potential to make significant contributions in this realm for measuring subaerial and submarine topography wthin cross-environment surveys. High spectral resolution, water-column correction, and low costs were found to be key factors in providing accurate and affordable imagery to costal resource managers.

Sample Web page and link to site

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Open-File Report 2007-1422


For scientific questions or comments, please send inquiries to John C. Brock (E-mail address:

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