Metadata: Identification_Information: Citation: Citation_Information: Originator: Edward M. Sweeney Publication_Date: 2004 Title: Tracklines of Sidescan-Sonar Survey conducted within Gulf of Farallones, 1989, by the U.S. Geological Survey Geospatial_Data_Presentation_Form: Vector Series_Information: Series_Name: Open-File Report Issue_Identification: 2004-1082 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr20041082 Online_Linkage: https://pubs.usgs.gov/of/2004/1082/arcgis/shape/tracklines/Tracklines.zip Larger_Work_Citation: Citation_Information: Originator: Edward M. Sweeney Originator: William W. Danforth Originator: Herman A. Karl Originator: Thomas F. O'Brien Originator: William C. Schwab Publication_Date: 2004 Title: The Gulf of Farallones: Sidescan-Sonar Imagery Series_Information: Series_Name: Open-File Report Issue_Identification: 2004-1082 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2004/1082/ Description: Abstract: In 1989, the U.S. Geological Survey (USGS) began a major geologic and oceanographic investigation of the Gulf of the Farallones continental shelf system, designed to evaluate and monitor human impacts on the marine environment (Karl and others, 2002). The study region is located off the central California coast, adjacent to San Francisco Bay and encompasses the Gulf of the Farallones National Marine Sanctuary. Geologic mapping of this area included the use of various remote sensing and sampling techniques such as sub-bottom profiling, sidescan-sonar and bathymetric mapping, gravity core and grab sampling, and photography. These data were used to define the surficial sediment distribution, underlying structure and sea floor morphology of the study area. The primary focus of this report is to present a georeferenced, digital sidescan-sonar mosaic of the study region. The sidescan-sonar data were acquired with the AMS-120 (120kHz) sidescan-sonar system during USGS cruise F9-89-NC. The dataset covers approximately 1000 km² of the continental shelf between Point Reyes, California and Half Moon Bay, California, extending west to the continental shelf break near the Farallon Islands. The sidescan-sonar mosaic displays a heterogenous sea-floor environment, containing outcropping rock, ripples, dunes, lineations and depressions, as well as flat, featureless sea floor (Karl and others, 2002). These data, along with sub-bottom interpretation and ground truth data define the geologic framework of the region. The sidescan-sonar mosaic can be used with supplemental remote sensing and sampling data as a base for future research, helping to define the local current regime and predominant sediment transport directions and forcing conditions within the Gulf of Farallones. Purpose: These data represent the sidescan-sonar trackline navigation data during the geophysical survey in the Gulf of the Farallones off the coast of central California. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19890802 Ending_Date: 19890815 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -123.383570 East_Bounding_Coordinate: -122.688740 North_Bounding_Coordinate: 37.977070 South_Bounding_Coordinate: 37.587810 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:c770a084-aed5-4b24-b62a-4f544dd839d2 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Sidescan-Sonar Theme_Keyword: AMS-120 Theme_Keyword: USGS Theme_Keyword: U.S. Geological Survey Theme_Keyword: Woods Hole Science Center Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: trackline navigation Theme_Keyword: AMS-120 Theme_Keyword: seafloor mapping Theme_Keyword: field activity identifier F9-89-NC Theme_Keyword: field activity serial number 89020 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: navigational data Theme_Keyword: marine geophysics Theme_Keyword: geospatial datasets Place: Place_Keyword_Thesaurus: None Place_Keyword: Farallones Place_Keyword: Gulf of the Farallones Place_Keyword: California Place_Keyword: U.S. West Coast Place_Keyword: U.S. Pacific Coast Place_Keyword: North America Place_Keyword: Pacific Ocean Place_Keyword: United States Place_Keyword: Half Moon Bay Place_Keyword: Point Reyes Place_Keyword: Farallon Islands Place_Keyword: Bodega Bay Place_Keyword: San Francisco Access_Constraints: None Use_Constraints: Public domain data from the U.S. government is freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of this dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Edward M. Sweeney Contact_Organization: U.S. Geological Survey Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Contact_Voice_Telephone: (508) 548-8700 x2307 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: esweeney@usgs.gov Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800 Data_Quality_Information: Logical_Consistency_Report: These data represent the sidescan-sonar tracklines conducted during a geophysical cruise within the Gulf of Farallones in 1989 by the U.S. Geological Survey. These data were navigated by GPS and LORAN-C. For real time positioning, the primary system was chosen either manually by the navigator or selected automatically by computer. Tracklines were within 100m of preplotted tracks when using GPD and LORAN-C and within a few meters when navigating under the Del Norte system. Completeness_Report: These data represent the sidescan-sonar tracklines conducted during a geophysical cruise within the Gulf of Farallones in 1989 by the U.S. Geological Survey. Lineage: Process_Step: Process_Description: Navigation data was acquired using three systems: (1) Global Positioning System (GPS); (2) LORAN-C; and (3) shore-based, line-of-sight transponder net (Del Norte system). For real time positioning, the primary system was chosen either manually by the navigator or selected automatically by computer. The navigation is reformatted into a comma-delimited ArcView Ungenerate text format. The file is then imported into ArcView, and a vector line shapefile is generated. The line numbers for each trackline are stored in an ASCII file listing unique track ID and line number. This file is imported into ArcView and ArcMap as a table. The file is then joined to the line shapefile by the unique track ID. The table for the trackline file is then edited, a new field created and the line number information is written to this new field. After writing the line number information to the trackline shapefile, the table join is removed, and the file is saved. This permanently saves the line number with the corresponding trackline. Process_Date: 2004 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Edward M. Sweeney Contact_Organization: U.S. Geological Survey Contact_Position: Research Assistant Contact_Address: Address_Type: Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2307 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: esweeney@usgs.gov Process_Step: Process_Description: Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Attempted to modify http to https where appropriate. Added ISO 19115 Topic Category keywords. Added the standard order process section in the Distribution section, which included adding the link to the data. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Process_Date: 20170331 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 Process_Step: Process_Description: USGS Thesaurus keywords added to the keyword section. Process_Date: 20180720 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 Process_Step: Process_Description: Crossref DOI link was added as the first link in the metadata. Process_Date: 20191118 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 Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200908 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: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 358 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000089992 Longitude_Resolution: 0.000089992 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Tracklines Entity_Type_Definition: ESRI ArcGIS 8.3 vector shapefile Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: LineNumber Attribute_Definition: Internal Definition Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Internal identification value Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Nancy Soderberg Contact_Organization: U.S. Geological Survey Contact_Position: Data Librarian Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2275 Contact_Facsimile_Telephone: (580)457-2313 Contact_Electronic_Mail_Address: nsoderberg@usgs.gov Resource_Description: Sidescan-sonar Tracklines (ESRI Shapefile) Distribution_Liability: Although this data set and its lineage have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data or its related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related items. Users must assume responsibility for the proper use of these data. The data should not be used at resolutions for which they are not intended. The data have not been reviewed for conformity with U.S. Geological Survey editorial standards, or the North American Strigraphic code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the US Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2004/1082/arcgis/shape/tracklines/Tracklines.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20211116 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Edward M. Sweeney Contact_Organization: U.S. Geological Survey Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Contact_Voice_Telephone: (508) 548-8700 x2307 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid. Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time