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Shoreline change rates along the coast of California from 1998 to 2016

Dates

Publication Date
Start Date
1998-04-18
End Date
2016-05-01

Citation

Barnard, P.L., Smith, S.A., and Foxgrover, A.C., 2020, California shorelines and shoreline change data, 1998-2016: U.S. Geological Survey data release, https://doi.org/10.5066/P91QSGXF

Summary

This dataset contains California shoreline change rates derived from mean high water (MHW) shorelines from 1998 (in Central and Southern California) and 2002 (in Northern California) to 2016. The MHW elevation in each analysis region (Northern, Central, and Southern California) maintained consistency with that of the National Assessment of Shoreline Change. The operational MHW line was extracted from Light Detection and Ranging (LiDAR) digital elevation models (DEMs) using the ArcGIS smoothed contour method. Within the Digital Shoreline Analysis System (DSAS), end-point rates (EPR) of shoreline change were calculated between the 1998/2002 and the 2016 shorelines at a transect spacing of 50 meters to provide a long-term perspective [...]

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Attached Files

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Shapefile: CA_1998_2016_shoreline_change_rates.zip
CA_1998_2016_shoreline_change_rates.CPG 5 Bytes
CA_1998_2016_shoreline_change_rates.dbf 4.83 MB
CA_1998_2016_shoreline_change_rates.prj 425 Bytes
CA_1998_2016_shoreline_change_rates.sbn 114.22 KB
CA_1998_2016_shoreline_change_rates.sbx 1.53 KB
CA_1998_2016_shoreline_change_rates.shp 343.75 KB
CA_1998_2016_shoreline_change_rates.shx 98.29 KB

Purpose

This work is one portion of ongoing coastal monitoring efforts for California and the western United States. These data provide an estimate of past shoreline positions and shoreline change throughout California, with the goal of understanding how shorelines change over time and in response to El Nino events. The data are intended for policy makers, resource managers, science researchers, students, and the general public. These data can be used with geographic information systems or other software to identify and assess possible areas of vulnerability. These data are not intended to be used for navigation.

Additional Information

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