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Open-File Report 2013–1011

Digital Data from the Great Sand Dunes Airborne Gravity Gradient Survey, South-Central Colorado

By B.J. Drenth, J.D. Abraham, V.J.S. Grauch, V.F. Labson, and G. Hodges

Thumbnail of and link to report PDF (929 kB)Abstract

This report contains digital data and supporting explanatory files describing data types, data formats, and survey procedures for a high-resolution airborne gravity gradient (AGG) survey at Great Sand Dunes National Park, Alamosa and Saguache Counties, south-central Colorado. In the San Luis Valley, the Great Sand Dunes survey covers a large part of Great Sand Dunes National Park and Preserve. The data described were collected from a high-resolution AGG survey flown in February 2012, by Fugro Airborne Surveys Corp., on contract to the U.S. Geological Survey.

Scientific objectives of the AGG survey are to investigate the subsurface structural framework that may influence groundwater hydrology and seismic hazards, and to investigate AGG methods and resolution using different flight specifications. Funding was provided by an airborne geophysics training program of the U.S. Department of Defense’s Task Force for Business & Stability Operations.

First posted January 31, 2013

For additional information contact:
Director, Crustal Geophysics and Geochemistry Science Center
U.S. Geological Survey
Box 25046, Mail Stop 964
Denver, CO 80225

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Drenth, B.J., Abraham, J.D., Grauch, V.J.S., and Hodges, G., 2013, Digital data from the Great Sand Dunes airborne gravity gradient survey, south-central Colorado, U.S. Geological Survey Open-File Report 2013–1011, 5 p.




Organization of Data

Description of AGG Methodology and Data

Data Processing


References Cited

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