Dataset Identification:
Resource Abstract:
- description: Beach erosion is a chronic problem along most open-ocean shores of the United States. As coastal populations
continue to grow, and community infrastructures are threatened by erosion, there is increased demand for accurate information
regarding past and present shoreline changes. There is also need for a comprehensive analysis of shoreline movement that is
regionally consistent. To meet these national needs, the USGS National Assessment of Shoreline Change Project has collected
and analyzed 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. This dataset consists of long-term (100+ years)
shoreline change rates. Rate calculations were computed using the Digital Shoreline Analysis System (DSAS), an ArcGIS extension
developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate
based on all available shoreline data. A reference baseline was used as the originating point for the orthogonal transects
cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to
calculate long-term rates. To make these results more accessible to the public and other agencies, the USGS created this web
service. This web service was created utilizing ESRI ArcServer. This service meets open geospatial consortium standards. The
data compilation used to derive the shoreline change rates is available in a service with the title USGS Map service: National
Shoreline Change - Historic Shorelines by State. The reference baseline used to derive the shoreline change rates is available
in a service with the title USGS Map service: National Shoreline Change - Offshore Baseline. The locations of the transects
used in the change rate calculation are available in a service with the title USGS Map service: National Shoreline Change
- Intersection Points. The geographic information system (GIS) data layers from this web service are cataloged by state for
ease of access.; abstract: Beach erosion is a chronic problem along most open-ocean shores of the United States. As coastal
populations continue to grow, and community infrastructures are threatened by erosion, there is increased demand for accurate
information regarding past and present shoreline changes. There is also need for a comprehensive analysis of shoreline movement
that is regionally consistent. To meet these national needs, the USGS National Assessment of Shoreline Change Project has
collected and analyzed 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. This dataset consists of long-term
(100+ years) shoreline change rates. Rate calculations were computed using the Digital Shoreline Analysis System (DSAS), an
ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear
regression rate based on all available shoreline data. A reference baseline was used as the originating point for the orthogonal
transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then
used to calculate long-term rates. To make these results more accessible to the public and other agencies, the USGS created
this web service. This web service was created utilizing ESRI ArcServer. This service meets open geospatial consortium standards.
The data compilation used to derive the shoreline change rates is available in a service with the title USGS Map service:
National Shoreline Change - Historic Shorelines by State. The reference baseline used to derive the shoreline change rates
is available in a service with the title USGS Map service: National Shoreline Change - Offshore Baseline. The locations of
the transects used in the change rate calculation are available in a service with the title USGS Map service: National Shoreline
Change - Intersection Points. The geographic information system (GIS) data layers from this web service are cataloged by state
for ease of access.
Citation
- Title USGS Map service: National Shoreline Change - Long-Term Shoreline Change Rates.
-
- creation Date
2018-05-20T04:29:16.977031
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T20:43:48Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:43:48Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:cda087ba-d28b-4d5c-abc5-5edf9ac48af5
Metadata record format is ISO19139 XML (MD_Metadata)