Backscatter ? Outer Mainland Shelf and Slope, Gulf of Santa Catalina, southern California, U.S. Geological Survey, 2010-2011Entry ID: USGS_OFR_2014-1094_SantaCatalinaBackscatter
Abstract: In 2010 and 2011, the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC), collected bathymetry and acoustic-backscatter data from the outer shelf and slope offshore the Oceanside region in southern California. These data were acquired as part of the USGS Marine Geohazards Program. Assessment of the hazards posed by offshore faults, submarine landslides, and tsunamis ... are facilitated by accurate and detailed bathymetric data. The surveys were conducted using the USGS R/V Parke Snavely outfitted with a 100 kHz Reson 7111 multibeam echosounder. While the surveys were focused on the collection of bathymetric data, the limited acoustic backscatter data are made available. These metadata describe the backscatter data provided in the report. The backscatter from the three separate surveys were not merged and these metadata describe the three separate backscatter images.
Purpose: These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to identify bathymetric features. These data are not intended for navigational purposes.
Information for the related USGS Pacific Coastal and Marine Science Center data collection field activities, S-11-10-SC, S-07-11-SC, and S-23-11-SC, online at <http://walrus.wr.usgs.gov/infobank/s/s1110sc/html/s-11-10-sc.meta.h..., <http://walrus.wr.usgs.gov/infobank/s/s0711sc/html/s-07-11-sc.meta.h..., and <http://walrus.wr.usgs.gov/infobank/s/s2311sc/html/s-23-11-sc.meta.h....
Data Set Citation
Dataset Originator/Creator: Dartnell, Peter; Conrad, James E.; Ryan, Holly F.; Finlayson, David P.
Dataset Title: Bathymetry and acoustic backscatter?outer mainland shelf and slope, Gulf of Santa Catalina, southern California
Dataset Series Name: Open-File Report 2014-1094
Dataset Release Date: 2014-01-01T00:00:00.000Z
Dataset Release Place: Reston ,VA
Dataset Publisher: U.S. Geological Survey
Version: Not provided
Data Presentation Form: Report: iv, 15 p.; Data catalog; Maps
Dataset DOI: http://dx.doi.org/10.3133/ofr20141094Online Resource: http://pubs.er.usgs.gov/publication/ofr20141094
Estimated to be no less than 2 m, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
Estimated to be no less than 20 cm, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
Access Constraints None
Use Constraints USGS-authored or produced data and information are in the public domain. Acknowledge the U.S. Geological Survey in products derived from these data. Share data products developed using these data with the U.S. Geological Survey. This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data.
Data Set Progress
Email: pdartnell at usgs.gov
U.S. Geological Survey 400 Natural Bridges Drive
City: Santa Cruz
Province or State: CA
Postal Code: 95060
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2014-05-19
Last DIF Revision Date: 2018-06-08