Field Activity A398SC

Identifier A398SC
Alternate names A-3-98-SC,OA-1-98-SC
Purpose Map San Diego and Los Angeles Margins to support marine disposal site studies, and USGS projects studying marine pollution and geohazards along the Los Angeles Margin.
Description United States Geological Survey, Menlo Park, California. Chief Scientist: Jim Gardner. Multibeam Sonar data (multibeam, clamshellgrab, GPS, integratednavigation) of field activity A-3-98-SC in San Diego and Newport, California from 03/26/1998 to 04/11/1998
Location California
Summary Completed survey and processed bathymetry and backscatter data of San Diego and Los Angeles Margins.
Info derived Bathymetry, backscatter, slope, sediment volumes, interpreted geology, etc
Comments For raw and intermediate data sets, contact Rani Nandiwada Staff information imported from InfoBank Jim Gardner (USGS Western Region) - Chief Scientist Art Kleiner (C&C Technologies) - Party Chief
Projects
Platform
Ocean Alert
Itinerary
Start (port not specified) 1998-03-26
End (port not specified) 1998-04-11
Bounds
West -119
East -117
North 34
South 32.5
Activity Multibeam Sonar

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Gardner, Jim
Crew members
Information specialist(s)
Peter Dartnell
Specialist, Information
Affiliate staff Art Kleiner (C&C Technologies) - Party Chief

Data types and categories

Data category: Location-Elevation, Sampling, Sonar
Data type: Navigation, Geology, Multibeam, Sidescan

Equipment used

Equipment Usage description Data types Datasets
clamshellgrab Geology (no data reported)
GPS Navigation (no data reported)
integratednavigation Navigation (no data reported)
multibeam Multibeam 1
sidescansonar Sidescan (no data reported)

Datasets


Datasets compiled from multiple sources

Dataset name Equipment Description Dataset contact
Merged multibeam bathymetry--Catalina Basin and northern Gulf of Santa Catalina, southern California multibeam This part of the data release includes 10-m resolution merged multibeam-bathymetry data of Catalina Basin and northern Gulf of Santa Catalina. The data are presented as a TIFF file. In February 2016 the University of Washington in cooperation with the U.S. Geological Survey, Pacific Coastal and Marine Science Center (USGS, PCMSC) collected multibeam bathymetry and acoustic backscatter data in Catalina Basin aboard the University of Washington's Research Vessel Thomas G. Thompson. Data were collected using a Kongsberg EM300 multibeam echosounder hull-mounted to the 274-foot R/V Thomas G. Thompson. The USGS, PCMSC processed these data and produced a series of bathymetric surfaces and acoustic backscatter images for scientific research purposes. A 10-m bathymetric surface produced from this work (available in this report) was merged with re-processed 10-m resolution multibeam bathymetry data collected in the Gulf of Santa Catalina in 2013 by Scripps Institution of Oceanography and processed by USGS, PCMSC (available at, https://pubs.usgs.gov/sim/3324/). These data can be used to assess the hazards posed by offshore faults, submarine landslides, and tsunamis as well as map sediment transport pathways and sedimentary sinks. Peter Dartnell

Publications

Samples collected during this field activity