Bathymetry: Offshore of Bolinas, California, 2010
Abstract/Contents
- Abstract
- This layer is a georeferenced raster image containing bathymetric data for the offshore area of Bolinas, California. The bathymetry and shaded-relief maps were generated from data collected by California State University, Monterey Bay (CSUMB), by Fugro Pelagos, and by Moss Landing Marine Laboratory (MLML). Mapping was completed between 2004 and 2010, using a combination of 200-kHz and 400-kHz Reson 7125, and 244-kHz Reson 8101 multibeam echosounders, as well as 468-kHz SEA SWATHPlus and 250-kHz GeoSwath interferometric systems. Moss Landing Marine Laboratory mapped the nearshore region north of Bolinas in 2004 prior to the California Seafloor Mapping Program (CSMP). The nearshore region from south of Bolinas Lagoon to Stinson Beach was mapped by Fugro Pelagos in 2009 for a project outside of the CSMP and only bathymetry data were collected. These mapping missions combined to collect bathymetry from about the 10-m isobath to beyond the 3-nautical-mile limit of CaliforniaÃs State Waters. NOTE: the horizontal datum of the bathymtry data (NAD83) differs from the horizontal datum of other layers in this data series (WGS84). Some bathymetry grids within this map were projected horizontally from WGS84 to NAD83 using ESRI tools to be more consistent with the vertical reference of the North American Vertical Datum of 1988 (NAVD88). These data are not intended for navigational purposes.
- 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. These data are intended for science researchers, students, policy makers, and the general public. This information is not intended for navigational purposes.The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.
Description
| Type of resource | cartographic, software, multimedia |
|---|---|
| Form | Raster Dataset |
| Place | Santa Cruz, California, US |
| Publisher | Geological Survey (U.S.) |
| Date valid | 2004 - 2010 |
| Publication date | 2014 |
| Edition | 1.0 |
| Language | English |
| Digital origin | born digital |
| Map data | Scale not given. ; Custom projection W 122°47ʹ6ʺ--W 122°34ʹ59ʺ/N 37°58ʹ13ʺ--N 37°48ʹ37ʺ, Scale not given ; EPSG::4326 |
Creators/Contributors
| Creator | Kvitek, Rikk G. | |
|---|---|---|
| Creator | Dartnell, Peter | |
| Creator | Bretz, Carrie K. | |
| Creator | Pacific Coastal and Marine Science Center | |
| Creator | Golden, Nadine E. |
Subjects
| Subject | Coasts |
|---|---|
| Subject | Bathymetric maps |
| Subject | Multibeam mapping |
| Subject | Submarine topography |
| Subject | Ocean bottom |
| Subject | Seismic reflection method |
| Subject | California |
| Subject | Marin County (Calif.) |
| Subject | Pacific Ocean |
| Subject | 2004-2010 |
| Subject | Imagery and Base Maps |
| Subject | Oceans |
| Subject | Environment |
| Subject | Geoscientific Information |
| Genre | Geospatial data |
| Genre | Cartographic dataset |
Bibliographic information
| Supplemental information | None |
|---|---|
| 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/xj604hz8439 |
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., Kvitek, R.G., and Bretz, C.K. (2014). Bathymetry: Offshore of Bolinas, California, 2010. California State Waters Map Series Data Catalog: U.S. Geological Survey Data Series 781. Available at: http://purl.stanford.edu/xj604hz8439.
Collection
California State Waters Map Series Data Catalog
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