Dataset Identification:
Resource Abstract:
- description: The sidescan sonar image of the nearshore seafloor (0 to 100 m water depths) of the Big Sycamore reserve area
was mosaicked from data collected in 1998. A Klein 2000 sidescan system was used for geophysical surveying. A Triton Elics
Isis brand side-scan data recording system was used on the cruise. The 1998 survey was navigated with a Leica Differential
Global Positioning System (DGPS) which provided a ship position with accuracy of 1-5 m in DGPS mode. At times during the cruise
differential signal was interrupted. In non-differential mode, the receiver provided a position with 30-50 m accuracy. A KVH
Industries Inc. azimuth digital gyro-compass provided ship headings with 0.5 degree accuracy. Navigation data were recorded
using Yo-Nav version 1.19 (Gann, 1992). The sidescan fish was towed approximately 30 m above the seafloor. The distance of
the fish behind the ship was not known during this survey and must be estimated when the data are processed in order to produce
the sidescan image mosaics. The resolution of the processed data mosaics is 0.2 m. The data are presented here at a resolution
of 1 m. This is one of a collection of digital files of a geographic information system of spatially referenced data related
to the USGS Coastal and Marine Geology Program Nearshore Benthic Habitat Mapping Project. See <http://walrus.wr.usgs.gov/nearshorehab>
for more information.; abstract: The sidescan sonar image of the nearshore seafloor (0 to 100 m water depths) of the Big Sycamore
reserve area was mosaicked from data collected in 1998. A Klein 2000 sidescan system was used for geophysical surveying. A
Triton Elics Isis brand side-scan data recording system was used on the cruise. The 1998 survey was navigated with a Leica
Differential Global Positioning System (DGPS) which provided a ship position with accuracy of 1-5 m in DGPS mode. At times
during the cruise differential signal was interrupted. In non-differential mode, the receiver provided a position with 30-50
m accuracy. A KVH Industries Inc. azimuth digital gyro-compass provided ship headings with 0.5 degree accuracy. Navigation
data were recorded using Yo-Nav version 1.19 (Gann, 1992). The sidescan fish was towed approximately 30 m above the seafloor.
The distance of the fish behind the ship was not known during this survey and must be estimated when the data are processed
in order to produce the sidescan image mosaics. The resolution of the processed data mosaics is 0.2 m. The data are presented
here at a resolution of 1 m. This is one of a collection of digital files of a geographic information system of spatially
referenced data related to the USGS Coastal and Marine Geology Program Nearshore Benthic Habitat Mapping Project. See <http://walrus.wr.usgs.gov/nearshorehab>
for more information.
Citation
- Title SVAN1M.TIF - Point Agruello (South Vandenberg Reserve) sidescan sonar backscatter image in the Nearshore Benthic Habitat Mapping
Project S. California map series. (UTM 10N, NAD83).
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- creation Date
2018-05-20T02:44:36.205870
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-07T00:18:42Z
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 2018-08-07T00:18:42Z
Metadata contact
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pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
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- Address
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- 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:5d0fb601-4f32-42f5-adea-16be00a2a9af
Metadata record format is ISO19139 XML (MD_Metadata)