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Below is a false color image of Dewees Island, where the colors on the image represent the data values — in this case, elevation. The term "false color" simply means that the image is not a photograph, and that you should use the color bar to interpret what the colors mean. The large, light blue area southwest of Capers Inlet is a large sandbar forming off shore. You can make a similar image using the BeachMapper software application provided on the second volume of this CD-ROM set. For more information about the Beach Mapper Application, click here.
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Portable Document Format (PDF) maps have been created to show LIDAR data for South Carolina's beaches and islands. PDF maps will allow you to zoom in on the data and print the maps at better resolution. However, because of the intense density of the data, the PDF files will not draw properly from your browser. If you have Adobe Acrobat Reader® software installed on your computer, you can view the maps by navigating to the pdf/islands directory on this CD-ROM and double click on a file. A directory of maps is available in the readme.txt file. Adobe Acrobat Reader software has been provided on this CD-ROM.
To learn more about PDF documents and installing the software need to view them, click here.
Dewees Island lies just north of Isle of Palms in Charleston County and is bounded to the northeast by Capers Inlet and to the southwest by Dewees Inlet. The island is relatively small with only 2.9 miles of beachfront, all of which is classified as an unstabilized inlet zone. The island is so small that any changes in either bordering inlet or the associated ebb-tidal deltas can result in drastic changes in erosion or accretion patterns. The dynamic shoreline shows long-term erosion rates of -5 to -10 feet per year. The island is accessible only by boat and development is limited to single-family residential homes.
Beach profile surveys are conducted in the spring and fall at approximately 400 monitoring stations throughout the State of South Carolina. Various agencies participate in the beach profile collection, including The South Carolina Department of Health and Environmental Control (SCDHEC) Office of Ocean and Coastal Resource Management (OCRM), Coastal Carolina University, and the College of Charleston. The results of the surveys provide a snapshot of the beach face. Over time, these surveys can be compiled to determine if and how the profile of the beach is changing. Below is a map of the stations and a sample of the profiles that can be extracted from the data. The beach profile data compiled by OCRM is provided on the second volume of this CD-ROM set.
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| *South Carolina Department of
Health and Environmental Control Office of Ocean and Coastal Resource Management |
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For more information about South Carolina beach profiles see: South
Carolina's Annual State of the Beaches Report, April 1998,
SCDHEC OCRM, 1362 McMillian Ave. Suite 400, Charleston, SC 29405.
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