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Baseline for the Central 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_Cencal_baseline.jpg thumbnail 118.61 KB image/jpeg
Shapefile: Cencal_baseline.zip
Cencal_baseline.CPG 5 Bytes
Cencal_baseline.dbf 218 Bytes
Cencal_baseline.prj 145 Bytes
Cencal_baseline.sbn 188 Bytes
Cencal_baseline.sbx 132 Bytes
Cencal_baseline.shp 264.85 KB
Cencal_baseline.shx 132 Bytes

Purpose

This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for each subregion: Northern California (Oregon border to Tomales Bay), Central California (Tomales Bay to El Capitán State Beach), and Southern California (El Capitán State Beach to the border with Mexico). This baseline layer serves as the starting point for orthogonally-oriented transects generated by the DSAS application. The transects intersect each shoreline and establish measurement points used to calculate shoreline change rates.

Additional Information

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