Depth to Transition--Bolinas to Pescadero, California

Identification_Information:

Citation:

Citation_Information:

Originator: Janet T. Watt
Originator: Stephen R. Hartwell
Originator: Samuel Y. Johnson
Originator: Ray W. Sliter
Originator: Eleyne L. Phillips
Originator: Stephanie L. Ross
Originator: John L. Chin
Publication_Date: 2014
Title: Depth to Transition--Bolinas to Pescadero, California
Geospatial_Data_Presentation_Form: GeoTiff
Series_Information:

Series_Name: Data Series
Issue_Identification: DS 781

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.3133/ds781
Online_Linkage: https://pubs.usgs.gov/ds/781/
Online_Linkage:

https://pubs.usgs.gov/ds/781/BolinasToPescadero/data/DepthToTransition_BolinasToPescadero.zip

Larger_Work_Citation:

Citation_Information:

Originator: Nadine E. Golden
Publication_Date: 2013
Title: California State Waters Map Series Data Catalog
Geospatial_Data_Presentation_Form: database
Series_Information:

Series_Name: Data Series
Issue_Identification: DS 781

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/ds/781/
Online_Linkage:

https://pubs.usgs.gov/ds/781/BolinasToPescadero/data_catalog_BolinasToPescadero.html

Description:

Abstract:

This part of DS 781 presents data for the depth-to-transition map of the Bolinas to Pescadero, California, region. The raster data file is included in "DepthToTransition_BolinastoPescadero.zip," which is accessible from https://pubs.usgs.gov/ds/781/BolinasToPescadero/data_catalog_BolinasToPescadero.html.

As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Bolinas and Pescadero was generated from seismic-reflection data collected between 2006 and 2010, supplemented with outcrop and geologic structure (fault) information following the methodology of Wong (2012). Water depths determined from bathymetry data were added to the sediment thickness data to provide information on the depth to base of the post-LGM unit.

Reference Cited: Wong, F. L., Phillips, E.L., Johnson, S.Y., and Sliter, R.W., 2012, Modeling of depth to base of Last Glacial Maximum and seafloor sediment thickness for the California State Waters Map Series, eastern Santa Barbara Channel, California: U.S. Geological Survey Open-File Report 2012-1161, 16 p. (available at https://pubs.usgs.gov/of/2012/1161/)

Purpose:

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.

Supplemental_Information:

Additional information about the field activities from which this data set was derived are available online at

https://cmgds.marine.usgs.gov/fan_info.php?fan=F207NC https://cmgds.marine.usgs.gov/fan_info.php?fan=L106SF https://cmgds.marine.usgs.gov/fan_info.php?fan=S809NC https://cmgds.marine.usgs.gov/fan_info.php?fan=S1510NC https://cmgds.marine.usgs.gov/fan_info.php?fan=S1610NC

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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2007
Ending_Date: 2010

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.784697
East_Bounding_Coordinate: -122.407086
North_Bounding_Coordinate: 37.946123
South_Bounding_Coordinate: 37.229799

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:495c4d3a-864e-4bc9-8432-af33c5b05a7e

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geology
Theme_Keyword: seismic reflection methods
Theme_Keyword: maps and atlases
Theme_Keyword: stratigraphic thickness
Theme_Keyword: geospatial datasets

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: sediment deposition
Theme_Keyword: seismic reflection profiling

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: coastal geology
Theme_Keyword: sediment thickness
Theme_Keyword: seismic isopach

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Physical Habitats and Geomorphology
Theme_Keyword: Distributions

Place:

Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: USA
Place_Keyword: Pacific Ocean
Place_Keyword: California
Place_Keyword: San Gregorio
Place_Keyword: San Mateo County
Place_Keyword: Pescadero

Access_Constraints: none
Use_Constraints:

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 as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Person: PCMSC Science Data Coordinator

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: US

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://pubs.usgs.gov/ds/781/BolinasToPescadero/images/DepthToTransition_BolinasToPescadero.jpg

Browse_Graphic_File_Description: map of depth to transitional layer
Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.0

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

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.

Logical_Consistency_Report: Not applicable for raster data.
Completeness_Report:

Sediment thickness data points exported from Seisworks profiling software were processed within the California 3-nmi limit.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

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.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

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.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP)

Publication_Date: 2011
Title: Geophysical data from field activity S-15-10-NC
Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)

Online_Linkage: http://cmgds.marine.usgs.gov/fan_info.php?fan=S1510NC

Type_of_Source_Media: ASCII lat/long shot point files
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Beginning_Date: 20100802
Ending_Date: 20100804

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: S-15-10-NC
Source_Contribution:

Digital seismic data used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP)

Publication_Date: 2011
Title: Geophysical data from field activity F-2-07-NC
Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)

Online_Linkage: http://cmgds.marine.usgs.gov/fan_info.php?fan=F207NC

Type_of_Source_Media: ASCII lat/long shot point files
Source_Time_Period_of_Content:

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Range_of_Dates/Times:

Beginning_Date: 20070322
Ending_Date: 20070406

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: F-2-07-NC
Source_Contribution:

Digital seismic data used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP)

Publication_Date: 2011
Title: Geophysical data from field activity L-1-06-NC
Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)

Online_Linkage: http://cmgds.marine.usgs.gov/fan_info.php?fan=L106SF

Type_of_Source_Media: ASCII lat/long shot point files
Source_Time_Period_of_Content:

Time_Period_Information:

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Beginning_Date: 20060925
Ending_Date: 20061003

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: L-1-06-NC
Source_Contribution:

Digital seismic data used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP)

Publication_Date: 2011
Title: Geophysical data from field activity S-16-10-NC
Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)

Online_Linkage: http://cmgds.marine.usgs.gov/fan_info.php?fan=S1610NC

Type_of_Source_Media: ASCII lat/long shot point files
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100805
Ending_Date: 20100808

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: S-16-10-NC
Source_Contribution:

Digital seismic data used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP)

Publication_Date: 2011
Title: Geophysical data from field activity S-8-09-NC
Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)

Online_Linkage: http://cmgds.marine.usgs.gov/fan_info.php?fan=S809NC

Type_of_Source_Media: ASCII lat/long shot point files
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20090908
Ending_Date: 20090930

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: S-8-09-NC
Source_Contribution:

Digital seismic data used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Johnson, S.Y.
Originator: Greene, H.G.
Originator: Manson, M.W.
Originator: Hartwell, S.R.
Originator: Endris, C.A.
Originator: Watt, J.T.
Publication_Date: 2014
Title:

Geology and geomorphology—Offshore of Bolinas Map Area, California

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreBolinas/data/Geology_OffshoreBolinas.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreBolinas/data_catalog_OffshoreBolinas.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2009

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: BolinasGeology
Source_Contribution: used to determine bedrock outcrops

Source_Information:

Source_Citation:

Citation_Information:

Originator: Johnson, S.Y.
Originator: Greene, H.G.
Originator: Manson, M.W.
Originator: Hartwell, S.R.
Originator: Endris, C.A.
Originator: Watt, J.T.
Publication_Date: 2014
Title: Faults—Offshore of Bolinas Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreBolinas/data/Faults_OffshoreBolinas.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreBolinas/data_catalog_OffshoreBolinas.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2009

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: BolinasFaults
Source_Contribution: faults were used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Greene, H.G.
Originator: Johnson, S.Y.
Originator: Manson, M.W.
Originator: Hartwell, S.R.
Originator: Endris, C.A.
Originator: Bruns, T.R.
Publication_Date: 2014
Title:

Geology and geomorphology—Offshore of San Francisco Map Area, California

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanFrancisco/data/Geology_OffshoreSanFrancisco.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanFrancisco/data_catalog_OffshoreSanFrancisco.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SanFranGeology
Source_Contribution: used to determine bedrock outcrops

Source_Information:

Source_Citation:

Citation_Information:

Originator: Greene, H.G.
Originator: Johnson, S.Y.
Originator: Manson, M.W.
Originator: Hartwell, S.R.
Originator: Endris, C.A.
Originator: Bruns, T.R.
Publication_Date: 2014
Title: Faults—Offshore of San Francisco Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanFrancisco/data/Faults_OffshoreSanFrancisco.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanFrancisco/data_catalog_OffshoreSanFrancisco.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SanFranFaults
Source_Contribution: faults were used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Greene, H.G.
Originator: Hartwell, S.R.
Originator: Manson, M.W.
Originator: Johnson, S.Y.
Originator: Dieter, B.E.
Originator: Phillips, E.L.
Originator: Watt, J.T.
Publication_Date: 2014
Title:

Geology and geomorphology—Offshore of Pacifica Map Area, California

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshorePacifica/data/Geology_OffshorePacifica.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshorePacifica/data_catalog_OffshorePacifica.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: PacificaGeology
Source_Contribution: used to determine bedrock outcrops

Source_Information:

Source_Citation:

Citation_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshorePacifica/data/Faults_OffshorePacifica.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshorePacifica/data_catalog_OffshorePacifica.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: PacificaFaults
Source_Contribution: faults were used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Greene, H.G.
Originator: Manson, M.W.
Originator: Dieter, B.E.
Originator: Ross, S.L.
Originator: Hartwell, S.R.
Originator: Johnson, S.Y.
Originator: Watt, J.T.
Publication_Date: 2014
Title:

Geology and geomorphology—Offshore of Half Moon Bay Map Area, California

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data/Geology_OffshoreHalfMoonBay.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data_catalog_OffshoreHalfMoonBay.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: HalfMoonBayGeology
Source_Contribution: used to determine bedrock outcrops

Source_Information:

Source_Citation:

Citation_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data/Faults_OffshoreHalfMoonBay.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data_catalog_OffshoreHalfMoonBay.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: HalfMoonBayFaults
Source_Contribution: faults were used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Watt, J.T.
Originator: Greene, H.G.
Originator: Hartwell, S.R.
Originator: Endris, C.A.
Originator: Ross, S.L.
Originator: Phillips, E.L.
Originator: Dieter, B.E.
Publication_Date: 2013
Title:

Geology and geomorphology—Offshore of San Gregorio Map Area, California

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanGregorio/data/Geology_OffshoreSanGregorio.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanGregorio/data_catalog_OffshoreSanGregorio.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SanGregorioGeology
Source_Contribution: used to determine bedrock outcrops

Source_Information:

Source_Citation:

Citation_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanGregorio/data/Faults_OffshoreSanGregorio.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanGregorio/data_catalog_OffshoreSanGregorio.html

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SanGregorioFaults
Source_Contribution: faults were used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Peter Dartnell
Originator: Rikk G. Kvitek
Originator: Carrie K. Bretz
Publication_Date: 2014
Title: Bathymetry—Offshore of Bolinas Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreBolinas/data/Bathymetry_OffshoreBolinas.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreBolinas/data_catalog_OffshoreBolinas.html

Type_of_Source_Media: GeoTiff
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2004
Ending_Date: 2010

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: BolinasBathy
Source_Contribution: used to calculate depth to transition

Source_Information:

Source_Citation:

Citation_Information:

Originator: Peter Dartnell
Originator: Rikk G. Kvitek
Originator: Carrie K. Bretz
Publication_Date: 2014
Title: Bathymetry—Offshore of San Francisco Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanFrancisco/data/Bathymetry_OffshoreSanFrancisco.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanFrancisco/data_catalog_OffshoreSanFrancisco.html

Type_of_Source_Media: GeoTiff
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2004
Ending_Date: 2008

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SanFranBathy
Source_Contribution: used to calculate depth to transition

Source_Information:

Source_Citation:

Citation_Information:

Originator: Carrie K. Bretz
Originator: Rikk G. Kvitek
Originator: Peter Dartnell
Originator: Eleyne L. Phillips
Publication_Date: 2014
Title: Bathymetry—Offshore of Pacifica Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshorePacifica/data/Bathymetry_OffshorePacifica.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshorePacifica/data_catalog_OffshorePacifica.html

Type_of_Source_Media: GeoTiff
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2005
Ending_Date: 2007

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: PacificaBathy
Source_Contribution: used to calculate depth to transition

Source_Information:

Source_Citation:

Citation_Information:

Originator: Carrie K. Bretz
Originator: Rikk G. Kvitek
Originator: Peter Dartnell
Originator: Eleyne L. Phillips
Publication_Date: 2014
Title: Bathymetry—Offshore of Half Moon Bay Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data/Bathymetry_OffshoreHalfMoonBay.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data_catalog_OffshoreHalfMoonBay.html

Type_of_Source_Media: GeoTiff
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2007

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: HalfMoonBayBathy
Source_Contribution: used to calculate depth to transition

Source_Information:

Source_Citation:

Citation_Information:

Originator: Rikk G. Kvitek
Originator: Carrie K. Bretz
Originator: Peter Dartnell
Originator: Samuel Y. Johnson
Originator: Guy R. Cochrane
Publication_Date: 2014
Title: Bathymetry—Offshore of San Gregorio Map Area, California
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanGregorio/data/Bathymetry_OffshoreSanGregorio.zip

Online_Linkage:

https://pubs.usgs.gov/ds/781/OffshoreSanGregorio/data_catalog_OffshoreSanGregorio.html

Type_of_Source_Media: GeoTiff
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2006
Ending_Date: 2007

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SanGregorioBathy
Source_Contribution: used to calculate depth to transition

Process_Step:

Process_Description:

Water bottom (seabed) and depth to base of the Last Glacial Maximum (LGM) horizons were digitized from seismic-reflection data using Seisworks software. The difference between the two horizons was exported from Seisworks for every shot point as XY coordinates (UTM Zone 10) and two-way travel time (TWT). The thickness was determined by applying a sound velocity to the TWT of 1,500 m/sec in water and 1,600 m/sec velocity in sediment, resulting in sediment thickness values.

Source_Used_Citation_Abbreviation: S-8-09-NC, L-1-06-NC, S-16-10-NC, F-2-07-NC, S-15-10-NC
Process_Date: 2011

Process_Step:

Process_Description:

XY locations and sediment thickness values Z were imported to ArcGIS format as points and interpolated to a preliminary surface with TopoRaster from which isopachs (thickness contours) were extracted at 2.5 m intervals. Further refinement of this sediment thickness map and the isopach shapefile (see https://pubs.usgs.gov/ds/781/BolinasToPescadero/data/Isopachs_BolinasToPescadero.zip) was accomplished through several iterations of manual editing to incorporate geology and fault information following the methodology of Wong (2012; see http://pubs.usgs.gov/of/2012/1161/).

Source_Used_Citation_Abbreviation:

S-8-09-NC, L-1-06-NC, S-16-10-NC, F-2-07-NC, S-15-10-NC, BolinasFaults, SanFranFaults, PacificaFaults, HalfMoonBayFaults, SanGregorioFaults, BolinasGeology, SanFranGeology, PacificaGeology, HalfMoonBayGeology, SanGregorioGeology

Process_Date: 2012
Source_Produced_Citation_Abbreviation: SedimentThickness

Process_Step:

Process_Description:

The depth to the base of the post-Last Glacial Maximum (LGM) unit was generated by adding the thickness data to water depths from the bathymetry data.

Source_Used_Citation_Abbreviation:

SedimentThickness, BolinasBathy, SanFranBathy, PacificaBathy, HalfMoonBayBathy, SanGregorioBathy

Process_Date: 2012

Process_Step:

Process_Description:

Modified Distribution_Information section in metadata to facilitate data download.

Process_Date: 20171005
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt

Contact_Position: Contractor -- Information Specialist
Contact_Address:

Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov

Process_Step:

Process_Description:

Metadata was modified to bring up to current USGS PCMSC standards. USGS Thesaurus and keywords were added, and Process Steps were refined. Minor typos were corrected. No data information was changed.

Process_Date: 20180508
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Susan A Cochran
Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA

Contact_Voice_Telephone: (831) 460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov

Process_Step:

Process_Description: Minor typos were corrected. No data information was changed.
Process_Date: 20180912
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Susan A Cochran
Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA

Contact_Voice_Telephone: (831) 460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov

Process_Step:

Process_Description:

Performed minor edits to the metadata to correct typos. 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.

Process_Date: 20211021
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Susan A. Cochran

Contact_Position: Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov

Depth to Transition--Bolinas to Pescadero, California

Metadata: