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Intersects for the Southern California coastal region generated to calculate shoreline change rates using the Digital Shoreline Analysis System version 5.0

Dates

Publication Date
Time Period
2024

Citation

Kratzmann, M.G., Farris, A.S., and Himmelstoss, E.A., 2024, National Shoreline Change—A GIS compilation of vector shorelines and associated shoreline change data from the 1800s to 2010s for the coast of California: U.S. Geological Survey data release, https://doi.org/10.5066/P94J0K7Z.

Summary

In coastal areas of the United States, where water and land interface in complex and dynamic ways, it is common to find concentrated residential and commercial development. These coastal areas often contain various landholdings managed by Federal, State, and local municipal authorities for public recreation and conservation. These areas are frequently subjected to a range of natural hazards, which include flooding and coastal erosion. In response, the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data to calculate rates of shoreline change along the conterminous coast of the United States, and select coastlines of Alaska and Hawaii, as part of the Coastal Change Hazards priority area. One component [...]

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Attached Files

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BG_Socal_intersects_LT.jpg thumbnail 140.9 KB image/jpeg
Shapefile: Socal_intersects_LT.zip
Socal_intersects_LT.CPG 5 Bytes
Socal_intersects_LT.dbf 9.42 MB
Socal_intersects_LT.prj 145 Bytes
Socal_intersects_LT.sbn 394.57 KB
Socal_intersects_LT.sbx 4.45 KB
Socal_intersects_LT.shp 1.15 MB
Socal_intersects_LT.shx 336.89 KB

Purpose

This dataset consists of point data which are created by the Digital Shoreline Analysis System (DSAS) version v5.0 at the intersection of shoreline and transect locations. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. These point data contain identification information related to the DSAS transect (TransectID, TransOrder) as well as the shoreline (ShorelineID, Uncertainty). Measurement transects are cast by DSAS from the baseline to intersect shoreline vectors, and the intersect data provide location and time information used to calculate rates of change.

Additional Information

Shapefile Extension

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