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Digital Shoreline Analysis System version 4.3 Transects with Long-Term Linear Regression Rate Calculations for southeastern Florida (FLse)

Dates

Publication Date
Time Period
2017

Citation

Kratzmann, M.G., Himmelstoss, E.A., and Thieler, E.R., 2017, National assessment of shoreline change – A GIS compilation of updated vector shorelines and associated shoreline change data for the Southeast Atlantic Coast: U.S. Geological Survey data release, https://doi.org/10.5066/F74X55X7.

Summary

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal change. Shoreline [...]

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Attached Files

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Shapefile: FLse_transects_rates_LT.zip
FLse_transects_rates_LT.cpg 5 Bytes
FLse_transects_rates_LT.dbf 1.42 MB
FLse_transects_rates_LT.prj 145 Bytes
FLse_transects_rates_LT.sbn 49.31 KB
FLse_transects_rates_LT.sbx 812 Bytes
FLse_transects_rates_LT.shp 497.07 KB
FLse_transects_rates_LT.shp.xml
Original FGDC Metadata

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27.87 KB
FLse_transects_rates_LT.shx 45.28 KB

Purpose

This dataset consists of long-term (~150 years) shoreline change rates for the southeastern Florida coastal region from Cocoa Beach to Key Biscayne. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate based on available shoreline data for a minimum 50-year period. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate long-term rates.

Additional Information

Shapefile Extension

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