Salt Point 38.639622 38.479620 -123.482704 -123.278809
Fort Ross 38.556494 38.396794 -123.305678 -123.102404
Bodega Bay 38.411542 38.252067 -123.172536 -122.969899
Tomales Point 38.255180 38.095716 -123.097226 -122.895023
Point Reyes 38.098263 37.938810 -123.094511 -122.892742
Drakes Bay 38.038192 37.878737 -122.966411 -122.764735
-----sediment thickness--------
Area Volume
Map block (sq km) Mean (million cu m)
Salt Point 117 12.5 1464
Fort Ross 100 21.5 2157
Bodega Bay 128 8.5 1084
Tomales Point 108 2.1 230
Point Reyes 175 7.9 1387
Drakes Bay 89 5.3 476
Additional information about the field activities from which this data set was derived are available online at
<http://walrus.wr.usgs.gov/infobank/s/s809nc/html/s-8-09-nc.meta.html>Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Johnson, Samuel Y., Hartwell, Stephen R., Watt, Janet T., and Sliter, Ray W., 2014, Isopachs--Salt Point to Drakes Bay, California:.This is part of the following larger work.
Golden, Nadine E., 2013, California State Waters Map Series Data Catalog: Data Series DS 781, U.S. Geological Survey, Reston, VA.Online Links:
This is a Raster data set. It contains the following raster data types:
Planar coordinates are encoded using row and column
Abscissae (x-coordinates) are specified to the nearest 20.000000
Ordinates (y-coordinates) are specified to the nearest 20.000000
Planar coordinates are specified in meters
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
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shartwell@usgs.gov
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.
U.S. Geological Survey (USGS) , Coastal and Marine Geology Program (CMGP), 2013, Seismic-reflection data acquisition data of field activity S-8-09-NC Stinson Beach to point Arena 09/08/2009 to 09/30/2009: U.S. Geological Survey (USGS) , Coastal and Marine Geology (CMG), Menlo Park, CA.Online Links:
- <http://walrus.wr.usgs.gov/infobank/gos/s-8-09-nc.fmeta.xml>
- <http://walrus.wr.usgs.gov/infobank/s/s809nc/html/s-8-09-nc.meta.html>
Data points are approximately 1 m apart along tracklines and 1000-2000 m apart between tracks. 50-m cell size for interpolation is better supported along track than between.
The chirp sonar instrument is deployed under the research vessel with about 10m of variation in position. The sparker position may vary as much as 20m from the navigation reference on the vessel.
Estimated to be approximately 1 m, along the track lines where data is well constrained, but may be much greater in areas where interpolation occurred.
Sediment thickness data points exported from Seisworks profiling software were processed within the California 3-nmi limit.
All vector geometry and attributes present.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- If physical samples or materials are available, constraints on their on-site access are described in "WR CMG Sample Distribution Policy" at URL: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
- Use_Constraints:
- 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.
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 database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.
(831) 460-7814 (voice)
(831) 427-4748 (FAX)
shartwell@usgs.gov
These databases, identified as sediment thickness for the Salt Point to Drakes Bay Region, California have been approved for release and publication by the U.S. Geological Survey (USGS). Although these databases have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
These data are not intended for navigational use.
| Data format: | File SedimentThickness_SaltPointToDrakesBay.zip contains ESRI Shapefile, SedimentThickness_SaltPointToDrakesBay, with associated files created by ArcGIS. in format ZIP Size: 6.0 MB |
|---|---|
| Network links: |
<https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/data/SedimentThickness_SaltPointToDrakesBay.zip> |
(831) 460-7814 (voice)
(831) 427-4748 (FAX)
shartwell@usgs.gov
