SOCAL1920_1934 - Vectorized Shoreline of Southern California Derived from 1920-1934 Source Data

There are critical needs for a nationwide compilation of reliable shoreline data. To meet these needs, the U.S. Geological Survey (USGS) has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data. Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002. Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies. Details regarding source are provided in the 'Data Quality Information' section of this metadata report. Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220725164314
identifier USGS:ecb642c7-e49b-4cdc-956f-2755c827a285
metadata_type geospatial
modified 20211025
old-spatial {"type": "Polygon", "coordinates": [[[-120.001275, 32.533341], [-120.001275, 34.458336], [ -117.123657, 34.458336], [ -117.123657, 32.533341], [-120.001275, 32.533341]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash a9d43cabf53dd029fdb0af71f7895ba62da70754
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-120.001275, 32.533341], [-120.001275, 34.458336], [ -117.123657, 34.458336], [ -117.123657, 32.533341], [-120.001275, 32.533341]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • baseline
  • beach-erosion
  • beach-nourishment
  • california
  • ckan
  • cmgp
  • coastal-and-marine-geology-program
  • coastal-processes
  • coastal-survey-map
  • continental-island-shore-complex
  • effects-of-coastal-change
  • elevation
  • endpoint-rate
  • erosion
  • esri-polyline-shapefile
  • geo
  • geoss
  • historic-shoreline
  • lidar
  • linear-regression-rate
  • national
  • north-america
  • oceans
  • shoreline
  • shoreline-accretion
  • shoreline-change-rate
  • shoreline-erosion
  • southern-california-bight-ecoregion
  • t-sheet
  • tp-sheet
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-ecb642c7-e49b-4cdc-956f-2755c827a285
isopen False
license_id notspecified
license_title License not specified
maintainer PCMSC Science Data Coordinator
maintainer_email pcmsc_data@usgs.gov
metadata_created 2025-11-22T08:59:02.036876
metadata_modified 2025-11-22T08:59:02.036880
notes There are critical needs for a nationwide compilation of reliable shoreline data. To meet these needs, the U.S. Geological Survey (USGS) has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data. Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002. Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies. Details regarding source are provided in the 'Data Quality Information' section of this metadata report. Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line.
num_resources 2
num_tags 36
title SOCAL1920_1934 - Vectorized Shoreline of Southern California Derived from 1920-1934 Source Data