Samuel Y. Johnson
Stephen R. Hartwell
Janet T. Watt
Ray W. Sliter
2014
Sediment Thickness--Salt Point to Drakes Bay, California
raster digital data
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://doi.org/10.3133/ds781
https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/data_catalog_SaltPointToDrakesBay.html
Nadine E. Golden
2013
California State Waters Map Series Data Catalog
database
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://doi.org/10.3133/ds781
This part of DS 781 presents data for the sediment-thickness map of the Salt Point to Drakes Bay, California, region. The raster data file is included in "SedimentThickness_SaltPointToDrakesBay.zip," which is accessible from https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/data_catalog_SaltPointToDrakesBay.html.
As part of the USGS's California State Waters Mapping Project, a 20-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Salt Point and Drakes Bay was generated from seismic-reflection data collected in 2009 supplemented with outcrop and geologic structure from DS 781. The resulting grid covers an area of approximately 717 sq km. The volume of sediment accumulated since the Last Glacial Maximum is approximately 6,800 million cubic meters. Contours at 2.5-meter intervals were derived from this grid.
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.
Additional information about the USGS field activity from which some of these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=S809SC
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology.
2009
ground condition
None planned
-123.473993
-122.762732
38.640196
37.868433
USGS Metadata Identifier
USGS:8ece68fc-e5f5-439c-aa9d-4685e3e94619
USGS Thesaurus
marine geology
seismic reflection methods
maps and atlases
stratigraphic thickness
geospatial datasets
None
coastal geology
sediment thickness
sediment isopach
seismic-reflection data
ISO 19115 Topic Category
environment
geoscientificInformation
oceans
Geographic Names Information System
Pacific Ocean
State of California
Bodega Bay
Marin County
Sonoma County
Point Reyes
None
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB) as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060-5792
US
831-427-4747
pcmsc_data@usgs.gov
https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/images/SedimentThickness_SaltPointToDrakesBay.jpg
Map of sediment thickness contours in the Salt Point to Drakes Bay region of California
JPEG
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.0
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.
All vector geometry and attributes present.
Sediment thickness data points exported from Seisworks profiling software were processed within the California 3-nmi limit.
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.
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
Menlo Park, CA
U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
https://cmgds.marine.usgs.gov/fan_info.php?fan=S809SC
ASCII lat/long shot point files
20090908
20090930
ground condition
S-8-09-NC
Digital seismic data used to interpret subsurface geologic structure
Chirp and sparker seismic-reflection data from USGS field activity S-8-09-NC were imported to SEISWORKS.
2013
Seabed and depth to Last Glacial Maximum horizons digitized in Seisworks.
2013
Data exported and converted with 1500m/sec velocity in water and 1600 m/sec velocity in sediment.
2013
X, Y locations and sediment thickness value Z imported to ArcGIS format as points, interpolated to preliminary surface with TopoRaster. Supplemental manually generated contours were combined for secondary calculation.
2013
Modified Distribution_Information section in metadata to facilitate data download.
20171005
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
20201019
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Edited metadata to add USGS Thesaurus keywords and perform minor edits to bring the metadata up to current PCMSC standards. No data were changed. The metadata available from a harvester may supersede metadata bundled within a download file. Users are advised to compare the metadata dates to determine which metadata file is most recent.
20211021
U.S. Geological Survey
Susan Cochran
Geologist
Mailing and Physical
2885 Mission Street
Santa Cruz
CA
95060
831-460-7545
scochran@usgs.gov
Information about the data available for download and different Network Resource Name links and details were given in the Standard Order Process section. Minor typos were corrected. No data information was changed. The metadata available from a harvester may supersede metadata bundled within a download file. Users are advised to compare the metadata dates to determine which metadata file is most recent.
20230324
Susan A Cochran
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Geologist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831) 460-7545
scochran@usgs.gov
Raster
Grid Cell
4276
3095
1
Universal Transverse Mercator
10
0.999600
-117.000000
0.000000
500000.000000
0.000000
row and column
20.000000
20.000000
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
Grid value is thickness of sediment above the transgressive surface of the last glacial maximum in meters.
U.S. Geological Survey
U.S. Geological Survey
mailing and physical address
345 Middlefield Rd
Menlo Park
CA
94025-3561
USA
(650) 329-4309
The .zip file (https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/data/SedimentThickness_SaltPointToDrakesBay.zip) includes the .lyr, .tfw, .tif, .tif.aux.xml, and .tif.ovr files, as well as FGDC-compliant metadata for the Sediment Thickness data layer in the Salt Point to Drakes Bay region of California.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by 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.
GeoTiff
ArcMap (version 10.0, ESRI, 2011)
Raster data layer is registered TIFF image in the UTM Zone 10 coordinate system.
The .zip file for the TIFF image includes the image (.tif), the world registration file (.tfw), and FGDC-compliant metadata.
WinZip
6.0
https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/data/SedimentThickness_SaltPointToDrakesBay.zip
https://pubs.usgs.gov/ds/781/SaltPointToDrakesBay/data_catalog_SaltPointToDrakesBay.html
https://pubs.usgs.gov/ds/781/
The first link will begin a direct download of the data. The second link is a landing page on which all of the downloadable data for a particular region are listed. The third link is a landing page for the entire data catalog.
none
20230324
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060-5792
US
831-427-4747
pcmsc_data@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time