Woods Hole Field Center / Coastal and Marine Geology
Digital Shoreline Analysis System (DSAS) version 2.0
An ArcView© extension for calculating shoreline change.
U. S. Geological Survey Open-File Report 03-076
by E. Robert Thieler, Daniel Martin, and Ayhan Ergul
If you use the DSAS extension, please cite the following publication:
Thieler, E. R., Martin, D., and Ergul, A., 2003. The Digital Shoreline
Analysis System, version 2.0: Shoreline change measurement software
extension for ArcView. USGS Open-File Report 03-076.
The current version is 2.1.1.
The following files are available for download:
README file with installation instructions, known issues, and
(100 kb) - the DSAS extension, compressed zip file
(2.4 Mb) - Microsoft Powerpoint tutorial and manual, compressed
(31 Mb)- Sample ArcView project and associated files, compressed
For more information, contact:
E. Robert Thieler
The Digital Shoreline Analysis System (DSAS)
version 2.0 extends the normal functionality of the ArcView© version 3.2 (and later) geographic
information system to include historic shoreline change analysis.
The DSAS 2.0 was developed by the USGS in cooperation with TPMC.
The application extension is designed to efficiently lead a
user through the major steps of shoreline change analysis in
a clearly organized and attractive user interface. This extension
to ArcView contains three main components to assist a user to
define a baseline, generate orthogonal transects at a user defined
separation along the coast and to calculate rates of change
(linear regression, endpoint rate, average of rates, average
of endpoints, jackknife). The extension utilizes Avenue code
to develop transects and rates and uses the Avenue programming
environment to automate and customize the user interface.
If you would like to receive announcements of DSAS updates
via e-mail, please contact Rob
2.0 does not currently run under ArcView/ArcGis 8. If you would
like to see this version developed, please contact Rob
Historic shorelines for a portion of southwestern Nantucket
Historic shorelines and DSAS-generated transects at 100 meter
spacing with histogram showing rates of shoreline change computed
using simple linear regression.
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code).
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. government.
These pages are provisional and contain computer software or scripts that may be
changed without notice as new versions or revisions of the material are created.
Although this program has been used by the USGS, no warranty, expressed or
implied, is made by the USGS or the United States Government as to the accuracy
and functioning of the program and related program material nor shall the fact of
distribution constitute any such warranty, and no responsibility is assumed by the
USGS in connection therewith.
Department of Interior
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