The 8 km of shoreline from Punta Higuero to Punta Cadena in Rincón, Puerto Rico is experiencing long-term coastal erosion. This study documents historical shoreline changes at Rincón for the period 1936-2005. Twelve historical shoreline positions were compiled from existing data, new orthophotography, and GPS field surveys.
The aerial photograph mosaic was created for use in a Geographic Information System (GIS) to digitize the historic high water line position of the shoreline. The shoreline vectors were compiled for use in the Digital Shoreline Analysis System (DSAS) ArcGIS extension.
ground condition
Public domain data are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey (USGS) must be referenced as the originator of the dataset in any future products or research derived from these data.
384 Woods Hole Road
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The data cover the shoreline of Puerto Rico from Punta Higuero to Punta Cadena. Additional aerial photographs may exist for the region but were not utilized as part of this study.
Aerial photographs were scanned into digital format (.tif) using an EPSON Expression 1640XL scanner at 600 dpi.
384 Woods Hole Road
The 2004 True Color Orthoimages, provided by the U.S. Army Corps of Engineers, were used as a reference for the creation of Ground Control Points (GCPs) to geometrically correct all aerial photographs. No RMS error greater than 0.03 was used.
384 Woods Hole Road
Cutlines were manually created following general linear features. Areas of overlap were feathered by a distance of 10-meters. All images were histogram matched to decrease the variability between images.
384 Woods Hole Road
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384 Woods Hole Road
Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
GeoTIFF
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384 Woods Hole Road