Bathymetry: Offshore of Refugio Beach, California, 2015
Abstract/Contents
- Abstract
- This layer is a georeferenced raster image containing bathymetric data for the offshore area of Refugio Beach, California. The bathymetric map of the area was generated from data collected by the U.S. Geological Survey (USGS). for the U.S. Army Corps of Engineers (USACE) Joint Lidar Bathymetry Technical Center of Expertise. The offshore region was mapped by the USGS in 2008, using a 234.5-kHz SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonar. The nearshore bathymetry and coastal topography were mapped for USACE by Fugro Pelagos in 2009, using the SHOALS-1000T bathymetric-lidar and Leica ALS60 topographic-lidar systems. All these mapping missions combined to collect bathymetry from the 0-m isobath to beyond the 3-nautical-mile limit of California¡s State Waters. A map that show these data are published in Scientific Investigations Map 3319, "California State Waters Map Series--Offshore of Refugio Beach, California." This layer is part of USGS Data Series 781.
- Purpose
- In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP) to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats and geology within the 3-nautical-mile limit of California's State Waters. CSMP has divided coastal California into 110 map blocks, each to be published individually as United States Geological Survey Open-File Reports (OFRs) or Scientific Investigations Maps (SIMs) at a scale of 1:24,000. Maps display seafloor morphology and character, identify potential marine benthic habitats and illustrate both the seafloor geology and shallow (to about 100 m) subsurface geology. Data layers for bathymetry, bathymetric contours, acoustic backscatter, seafloor character, potential benthic habitat and offshore geology were created for each map block, as well as regional-scale data layers for sediment thickness, depth to transition, transgressive contours, isopachs, predicted distributions of benthic macro-invertebrates and visual observations of benthic habitat from video cruises over the entire state. This coverage can be used to to aid in assessments and mitigation of geologic hazards in the coastal region and to provide sufficient geologic information for land-use and land-management decisions both onshore and offshore. These data are intended for science researchers, students, policy makers, and the general public. This information is not intended for navigational purposes.
Description
Type of resource | cartographic, software, multimedia |
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Form | Raster Dataset |
Place | Santa Cruz, California, US |
Publisher | Geological Survey (U.S.) |
Date valid | 2015 |
Publication date | 2015 |
Edition | 1.0 |
Language | English |
Digital origin | born digital |
Map data | Scale not given. ; Custom projection W 120°11ʹ36ʺ--W 119°59ʹ34ʺ/N 34°32ʹ39ʺ--N 34°22ʹ41ʺ, Scale not given ; EPSG::4326 |
Creators/Contributors
Creator | Finlayson, David P. | |
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Creator | Dartnell, Peter | |
Creator | Phillips, Eleyne L. | |
Creator | Pacific Coastal and Marine Science Center | |
Creator | Golden, Nadine E. |
Subjects
Subject | Coasts |
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Subject | Digital elevation models |
Subject | Remote sensing |
Subject | Bathymetric maps |
Subject | Geomorphology |
Subject | Multibeam mapping |
Subject | Submarine topography |
Subject | Ocean bottom |
Subject | Seismic reflection method |
Subject | California |
Subject | Santa Barbara County (Calif.) |
Subject | Pacific Ocean |
Subject | 2015 |
Subject | Imagery and Base Maps |
Subject | Oceans |
Subject | Elevation |
Genre | Geospatial data |
Genre | Cartographic dataset |
Bibliographic information
Supplemental information | Information for the related USGS Pacific Coastal and Marine Science Center data collection field activity, S-8-08-SC online at http://walrus.wr.usgs.gov/infobank/s/s808sc/html/s-8-08-sc.meta.html. |
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WGS84 Cartographics | This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection. |
Location | https://purl.stanford.edu/fv477rc3507 |
Access conditions
- Use and reproduction
- This item is in the public domain. There are no restrictions on use.
- Copyright
- This work is in the Public Domain, meaning that it is not subject to copyright.
Preferred citation
- Preferred citation
- Dartnell, P., Phillips, E.L., Finlayson, D.P. (2015). Bathymetry: Offshore of Refugio Beach, California, 2015. California State Waters Map Series Data Catalog: U.S. Geological Survey Data Series 781. Available at: http://purl.stanford.edu/fv477rc3507.
Collection
California State Waters Map Series Data Catalog
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