Metadata: Identification_Information: Citation: Citation_Information: Originator: Thomas D. Lorenson Originator: Ray W. Sliter Originator: James E. Conrad Originator: Antoinette G. Papesh Originator: Jonathan A. Warrick Publication_Date: 2021 Title: Photographs of vibracores collected offshore San Francisco, California, during field activity 2019-649-FA from 2019-10-11 to 2019-10-18 Geospatial_Data_Presentation_Form: TIFF image files Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9LBG9H5 Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9LBG9H5 Larger_Work_Citation: Citation_Information: Originator: Ray W. Sliter Originator: James E. Conrad Originator: Thomas D. Lorenson Originator: Antoinette G. Papesh Originator: Alicia F. Balster-Gee Originator: Jonathan A. Warrick Publication_Date: 2021 Title: Geophysical and core sample data offshore San Francisco, California, during field activity 2019-649-FA from 2019-10-11 to 2019-10-18 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9LBG9H5 Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9LBG9H5 Description: Abstract: This section of the data release contains photographs of 34 vibracores that were collected aboard the R/V Bold Horizon in 2019 on U.S. Geological Survey Field Activity 2019-649-FA offshore San Francisco, California. Continuous line-scan photographs were created in the lab to assess sand and gravel resources in Federal and State waters for potential use in future beach nourishment projects along stretches of the coast where critical erosion hotspots have been identified. Purpose: The U.S. Geological Survey (USGS) created continuous line-scan photos of vibracores collected in 2019 offshore San Francisco, California. The goal of the vibracore imaging was to provide detailed subsurface sediment characterization of the study area. This cruise was funded through partnerships with the Bureau of Ocean Energy Management (BOEM) and the State of California Ocean Protection Council (OPC). Supplemental_Information: Additional information about the field activity from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-649-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20191011 Ending_Date: 20191018 Currentness_Reference: ground condition at time data were collected Status: Progress: Planned Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.87083 East_Bounding_Coordinate: -122.39324 North_Bounding_Coordinate: 38.01347 South_Bounding_Coordinate: 37.49665 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:2cbfffb3-f0b0-4caa-b277-1d6be27dd104 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Material Resources Theme_Keyword: Assessments Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: vibracoring Theme_Keyword: marine geology Theme_Keyword: core analysis Theme_Keyword: sea-floor characteristics Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: geology Theme_Keyword: geotechnical experiments Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: San Francisco Place_Keyword: Bolinas Place_Keyword: Ocean Beach Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: North Pacific Ocean 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 (USGS, the Bureau of Ocean Energy Management (BOEM), and the California Geological Survey (CGS) as the originator(s) of the dataset and in products derived from these data. 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 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: 2019-649-FA_tracks_and_cores.png Browse_Graphic_File_Description: Map showing locations of vibracore sites (purple dots) and tracklines (blue) along which chirp seismic data were collected. Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: TIFF image file Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Identified as best available version Logical_Consistency_Report: Continuous core photos were taken in the lab from vibracores collected during USGS cruise 2019-649-FA using a Geotek Geoscan line-scanning camera. Quality control was conducted during the photographic process. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Position data were provided by a Hemisphere V100 Global Positioning System using L1, C/A code and carrier phase smoothing with a stated accuracy of 60 centimeters. Lineage: Process_Step: Process_Description: 34 cores were collected on cruise 2019-649-FA with a Rossfelder P-5 vibracorer. Process_Date: 20191018 Process_Step: Process_Description: A Geotek GeoScan V Linescan Imaging system was used to collect line-scan images at resolutions of 25 micrometer pixel widths. Polarizing filters on the camera lens and the LED lamp lights were used to reduce glare effects for wet split-cores. 37 photograph files were created for 34 vibracores (cores SF12, SF16 and SF18 are two sections). The images include a composite ruler that was added using the “Add Ruler 1.4” Geotek software, which exported the final TIFF and software-proprietary XML files, adding “R” to the file name. The camera is calibrated for color balance before each use. The images were collected with a 40-millisecond exposure time, aperture setting of F4.07, and a resolution of 100 pixels per centimeter. An image-specific metadata file was automatically created by the Geotek software for each photograph, providing information on color calibration, pixel dimensions, physical dimensions, and camera settings. Example of an image-specific xml file: giRulerImage SF03 SEC1 100RES PHOTO 1 1 9.55 73.60 0.00 10 100 100 40 4.07 2.33 18.0 18.0 18.0 0.0 0.0 0.0 955 7360 IM001_01_R.tif 0 0 0 0 2 4 Process_Date: 20191104 Process_Step: Process_Description: Performed minor edits to the metadata to correct typos. No data were changed Process_Date: 20211013 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 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 37 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: WGS 1984 UTM Zone 11N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -117.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0001 Ordinate_Resolution: 0.0001 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: D WGS 1984 Ellipsoid_Name: WGS 1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: zip file of photographs of vibracores with image-specific metadata files. Entity_and_Attribute_Detail_Citation: producer Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Pacific Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 1-831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: These data are available in TIFF format contained in a single zip file (2019-649-FA_R_core_photos.zip) which also contains a software-created metadata file for each photograph containing image-specific parameters and settings. Supplemental files include 2019-649-FA_core_locations.csv and 2019-649-FA_core_locations_shapefile.zip. Distribution_Liability: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Version_Date: 20191104 Format_Information_Content: 2019-649-FA_R_core_photos.zip contains photographs per vibracore section and, for each photograph, a software-created metadata file containing image-specific parameters and settings. File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 1885 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9LBG9H5 Access_Instructions: Data can be downloaded using the Network_Resource_Name link, then scroll down to the Sampling Data/Continuous vibracores photos section. Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Date: 20210430 Format_Information_Content: 2019-649-FA_core_locations_shapefile.zip is a shapefile of vibracore locations File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 0.003 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9LBG9H5 Access_Instructions: Data can be downloaded using the Network_Resource_Name link, then scroll down to the Sampling Data/Continuous vibracores photos section. Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Date: 20210430 Format_Information_Content: 2018-638-FA_core_locations.csv is a text file containing vibracore locations File_Decompression_Technique: no compression used Transfer_Size: 0.000935 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9LBG9H5 Access_Instructions: Data can be downloaded using the Network_Resource_Name link, then scroll down to the Sampling Data/Continuous vibracores photos section. Fees: None. Technical_Prerequisites: These data can be viewed with any graphics viewing software. Metadata_Reference_Information: Metadata_Date: 20211013 Metadata_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 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998