Contours (10m): Offshore of Bodega Head, California, 2010
Abstract/Contents
- Abstract
- This line shapefile represents contour lines at 10 meter intervals for the area offshore of Bodega Head, California. These data were generated from bathymetry data collected by California State University, Monterey Bay (CSUMB) and by Fugro Pelagos. Mapping was completed between 2007 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 interferometric system. These mapping missions combined to collect bathymetry from about the 10-m isobath to beyond the 3-nautical-mile limit of California State Waters. Bathymetric contours at 10-m intervals were generated from a bathymetric surface model. The most continuous contour segments were preserved while smaller segments and isolated island polygons were excluded from the final output. Contours were smoothed via a polynomial approximation with exponential kernel (PAEK) algorithm using a tolerance value of 60 m. The contours were then clipped to the boundary of the map area. These data are not intended for navigational purposes. This layer is part of USGS DS 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 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.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 | Shapefile |
| Extent | 0.669 |
| Place | Santa Cruz, California, USSanta Cruz, California, US |
| Publisher | Geological Survey (U.S.) : Geological Survey (U.S.) |
| Date valid | 2007 - 2010 |
| Publication date | 2014 |
| Edition | Version 1.0 |
| Language | English |
| Digital origin | born digital |
| Map data | Scale not given. ; Custom projection W 123°10ʹ21ʺ--W 122°58ʹ39ʺ/N 38°24ʹ42ʺ--N 38°15ʹ8ʺW 123°10ʹ21ʺ--W 122°58ʹ39ʺ/N 38°24ʹ41ʺ--N 38°15ʹ9ʺ, Scale not given ; EPSG::4326 |
Creators/Contributors
| Creator | Kvitek, Rikk G. |
|---|---|
| Creator | Dartnell, Peter |
| Creator | Pacific Coastal and Marine Science Center |
| Creator | Golden, Nadine E. |
Subjects
| Subject | Coasts |
|---|---|
| Subject | Contours (Cartography) |
| Subject | Ocean bottom |
| Subject | California |
| Subject | Marin County (Calif.) |
| Subject | Sonoma County (Calif.) |
| Subject | Bodega Bay (Calif.) |
| Subject | Pacific Ocean |
| Subject | 2007-2010 |
| Subject | Geoscientific Information |
| Subject | Oceans |
| Genre | Geospatial data |
| Genre | Cartographic dataset |
Bibliographic information
| 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/wk028sg4805 |
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. and Kvitek, R.G. (2014). Contours (10m): Offshore of Bodega Head, California, 2010. California State Waters Map Series Data Catalog: U.S. Geological Survey Data Series 781. Available at: http://purl.stanford.edu/wk028sg4805.
Collection
California State Waters Map Series Data Catalog
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