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Open-File Report 2012–1137

Documentation of the U.S. Geological Survey Sea Floor Stress and Sediment Mobility Database

By P. Soupy Dalyander, Bradford Butman, Christopher R. Sherwood, and Richard P. Signell

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The U.S. Geological Survey Sea Floor Stress and Sediment Mobility Database contains estimates of bottom stress and sediment mobility for the U.S. continental shelf. This U.S. Geological Survey database provides information that is needed to characterize sea floor ecosystems and evaluate areas for human use. The estimates contained in the database are designed to spatially and seasonally resolve the general characteristics of bottom stress over the U.S. continental shelf and to estimate sea floor mobility by comparing critical stress thresholds based on observed sediment texture data to the modeled stress. This report describes the methods used to make the bottom stress and mobility estimates, statistics used to characterize stress and mobility, data validation procedures, and the metadata for each dataset and provides information on how to access the database online.

First posted June 28, 2012

Revised May 11, 2015

For additional information contact:
Director, Woods Hole Coastal and Marine Science Center
U.S. Geological Survey
384 Woods Hole Road
Quissett Campus
Woods Hole, MA 02543
(508) 548–8700

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:

Dalyander, P.S., Butman, Bradford, Sherwood, C.R., and Signell, R.P., 2015, Documentation of the U.S. Geological Survey Stress and Sediment Mobility Database (ver. 1.1, May 2015): U.S. Geological Survey Open-File Report 2012–1137, 20 p., at





Stress Characterization

Contents of the Sea Floor Stress and Sediment Mobility Database

Data Format


Data Validation

Data Review

Database Access via the Web


Selected References


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