Metadata: Identification_Information: Citation: Citation_Information: Originator: Peter Dartnell Originator: David Finlayson Originator: James Conrad Originator: Guy Cochrane Originator: Samuel Johnson Publication_Date: 2010 Title: Bathymetry data from USGS Field Activity S-8-08-SC, northern Santa Barbara Channel, southern California Geospatial_Data_Presentation_Form: Raster Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1289 Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2009/1289/data.html Online_Linkage: https://pubs.usgs.gov/of/2009/1289/ Online_Linkage: https://doi.org/10.3133/ofr20091289 Larger_Work_Citation: Citation_Information: Originator: Peter Dartnell Originator: David Finlayson Originator: James Conrad Originator: Guy Cochrane Originator: Samuel Johnson Publication_Date: 2010 Title: Bathymetry and Acoustic Backscatter: Northern Santa Barbara Channel, Southern California Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1289 Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20091289 Online_Linkage: https://pubs.usgs.gov/of/2009/1289/index.html Description: Abstract: Bathymetry data were collected by the U.S. Geological Survey in July 2008 in the northern Santa Barbara Channel in southern California. Data were collected aboard the R/V Parke Snavely, during USGS Field Activity S-9-08-SC, using a bathymetric sidescan system. Purpose: These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display the bathymetry data. 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=S808SC 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: 20080708 Ending_Date: 20080723 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -120.5000000 East_Bounding_Coordinate: -120.0000000 North_Bounding_Coordinate: 34.50000000 South_Bounding_Coordinate: 34.25000000 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:c3cb419d-a370-422e-a7cc-fe0f46fe2ee4 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Bathymetry and Elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: bathymetry Theme_Keyword: bathymetry measurement Theme_Keyword: sea-floor characteristics Theme_Keyword: geospatial datasets Theme_Keyword: marine geophysics Theme_Keyword: multibeam sonar Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: acoustic methods Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: water depth Theme_Keyword: ocean floor topography 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: Santa Barbara Channel Place_Keyword: Refugio Beach Place_Keyword: El Capitan Beach Place_Keyword: Santa Barbara Place_Keyword: State of California 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 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 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2009/1289/images/usgs2008_clrbathy.pdf Browse_Graphic_File_Description: Map showing shaded relief bathymetry, northern Santa Barbara Channel (16 Mb) Browse_Graphic_File_Type: PDF Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Not applicable for raster data. Logical_Consistency_Report: Unspecified Completeness_Report: Complete Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: 0.5 meters Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: 0.05 percent of the water depth. Lineage: Process_Step: Process_Description: The bathymetry data were collected using 234.5 kHz SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonar aboard the USGS R/V Parke Snavely. The survey vessel was equipped with a CodaOctopus F190 attitude and position system. This system combines Real Time Kinematic (RTK) Global Positioning System (GPS) data (2 centimeter error ellipse) with inertial motion measurements so that high-precision position and attitude corrections are fed in real-time to the sonar acquisition equipment. Up to 10 pings per second are transmitted with each ping consisting of 2048 samples per side (port and starboard). The returned samples are projected to the seafloor using a ray-tracing algorithm working with the previously measured sound velocity profiles. A series of statistical filters are applied to the raw samples that discriminate the seafloor returns from other unintended targets in the water column. Finally, the processed data are stored, line-by-line in processed trackline files. The individual soundings stored in the processed trackline files were combined into a 2-m resolution rasters in the Grid Processor software. The 2-m binned elevation values were exported from Grid Processor as an XYZ point cloud. The WGS84 (G1150) ellipsoidal coordinates of the survey were transformed into NAD83 (CORS96) ellipsoidal coordinates using a 7-parameter Helmert transformation available in the CS2CS program in the Proj.4 library (Version 442 for 32-bit Windows). The seven required parameters for the procedure were calculated using an Epoch date of 8 July 2008 according to procedure outlined in Soler and Snay (2004). Finally, the resulting NAD83 (CORS96) elevation postings were transformed into NAVD 1988 using the NOAA VDatum (Version 2.2.4) with the Geoid03 model. A script divided the 2-m binned point cloud into 2 x 2 km tiles. Each tile was gridded using Surfer (Version 9.2.397) and a linear Krigging algorithm and 0.20 cm nugget (the mean standard deviation of all 2-m cells in the survey). Finally, the 2-km tiles were mosaicked into a contiguous raster and converted to an Esri GRID. Process_Date: 2009 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David Finlayson Contact_Organization: U.S. Geological Survey Contact_Position: Operational Geologist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Country: USA Contact_Voice_Telephone: (831) 427-4757 Contact_Electronic_Mail_Address: dfinlayson@usgs.gov Process_Step: Process_Description: Edits were made to bring the metadata up to current PCMSC standards including adding a doi# link, correcting typos, refining keywords, and using current access and distribution liability statements. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. No data were changed. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version. Process_Date: 20200131 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_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Country: United States Contact_Voice_Telephone: 831-460-7545 Contact_Electronic_Mail_Address: scochran@usgs.gov Process_Step: Process_Description: Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Process_Date: 20201019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.00000 Latitude_of_Projection_Origin: 0.00000 False_Easting: 500000.0 False_Northing: 0.00 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 2.0 Ordinate_Resolution: 2.0 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: NAD83 Ellipsoid_Name: NAVD88 Semi-major_Axis: 6378137.00 Denominator_of_Flattening_Ratio: 0.003352811 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The bathymetry data was originally archived as an ESRI grid with the following attributes: >Cell size = 2.0 >Number of rows = 6001 >Number of columns = 11001 > >Data type = floating point > >Boundary >Xmin = 755999.0 >Xmax = 778001.0 >Ymin = 3807999.0 >Ymax = 3820001.0 > >Statistics >Minimum value = -146.38 >Maximum value = -5.17 >Mean = -61.75 >Standard deviation = 24.39 > >Coordinate system description >Projection UTM >Zone 10 >Datum NAD83 >Units meters These data are published in this report in three different formats with the following attributes, >BATHY.TIFF >Imageformat = TIFF >Image type = grayscale >Image colormap = false >Image compressed = false >Image rotate = false > >Image depth = 8 >Image bands = 1 >Number of columns = 6001 >Number of rows = 11001 >Pixel size DX = 2.0 >Pixel size DY = 2.0 > >Boundary >Xmin = 755999.0 >Xmax = 778001.0 >Ymin = 3807999.0 >Ymax = 3820001.0 > >BATHY.XYZ >XYZ file (x-coord, y-coord, depth) created from the ESRI grid using the command "GRIDPOINT". > >BATHY.ASC >ASCIIRASTER files created from the ESRI grid using the command "GRIDASCII". Entity_and_Attribute_Detail_Citation: USGS Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd MS-532 City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-4309 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: Esri grid format Format_Version_Number: 9.1 Format_Information_Content: Zip file contains the bathymetry data in xyz format File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 154 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2009/1289/data/bathyXYZ.zip Network_Resource_Name: https://pubs.usgs.gov/of/2009/1289/data.html Network_Resource_Name: https://doi.org/10.3133/ofr20091289 Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of bathymetry data. The second link points to a page with all the data in the report. The third link points to a landing page for the Open-File Report. Digital_Form: Digital_Transfer_Information: Format_Name: GeoTIFF Format_Version_Number: 9.1 Format_Information_Content: Zip file contains the bathymetry data in GeoTiff format File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 8 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2009/1289/data/bathyTIFF.zip Network_Resource_Name: https://pubs.usgs.gov/of/2009/1289/data.html Network_Resource_Name: https://doi.org/10.3133/ofr20091289 Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of bathymetry data. The second link points to a page with all the data in the report. The third link points to a landing page for the Open-File Report. Digital_Form: Digital_Transfer_Information: Format_Name: Raster data format Format_Version_Number: 9.1 Format_Information_Content: Zip file contains the bathymetry data in ASCIIRASTER format File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 98 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2009/1289/data/bathyASC.zip Network_Resource_Name: https://pubs.usgs.gov/of/2009/1289/data.html Network_Resource_Name: https://doi.org/10.3133/ofr20091289 Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of bathymetry data. The second link points to a page with all the data in the report. The third link points to a landing page for the Open-File Report. Fees: None Metadata_Reference_Information: Metadata_Date: 20201019 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