Metadata: Identification_Information: Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Brian D. Andrews Originator: Daniel S. Brothers Originator: Uri S. ten Brink Originator: Jared W. Kluesner Originator: Peter J. Haeussler Publication_Date: 2017 Title: Multibeam bathymetry data between Cross Sound and Dixon Entrance, offshore southeastern Alaska, collected from 2016-05-17 to 2016-06-12 during field activity 2016-625-FA Geospatial_Data_Presentation_Form: ASCII text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F7NG4PTW 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/F7NG4PTW Online_Linkage: https://www.sciencebase.gov/catalog/item/5a0a213fe4b09af898c9ef04 Larger_Work_Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Daniel S. Brothers Originator: Brian D. Andrews Originator: Uri S. ten Brink Originator: Jared W. Kluesner Originator: Peter J. Haeussler Publication_Date: 2017 Title: Multibeam bathymetry and backscatter data and multichannel sparker seismic-reflection data between Cross Sound and Dixon Entrance, offshore southeastern Alaska, collected from 2016-05-17 to 2016-06-12 during field activity 2016-625-FA Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F7NG4PTW 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/F7NG4PTW Description: Abstract: Multibeam bathymetry data were collected along the Queen Charlotte-Fairweather Fault between Icy Point and Dixon Entrance, offshore southeastern Alaska from 2016-05-17 to 2016-06-12. Data were collected aboard the Alaska Department of Fish and Game R/V Medeia using a Reson SeaBat 7160 multibeam echosounder, Reson 7k Control Center, and HYPACK. This data release contains approximately 4,600 square kilometers of multibeam bathymetry and backscatter data, organized into zip files for each Julian Day of the survey. Purpose: The Queen Charlotte-Fairweather Fault (QCFF) is a major structural feature that extends more than 1,200 km from northern Vancouver Island, Canada to the Fairweather Range of southern Alaska. The fault system represents a major transform boundary that separates the Pacific Plate from the North American Plate, and in many ways, can be considered an analog ‘sister’ fault to California’s San Andreas Fault. Early studies in the 1970s and 1980s based on historical marine geophysical data demonstrated that approximately 75 percent of the system is located offshore along the continental shelf-edge and slope, more than 20-50 km from land in eastern Gulf of Alaska. Historical seismicity records dating back to 1890 include dozens of large magnitude earthquakes, including eight events of magnitude greater than 7 and Canada’s largest earthquake on record (1949, M8.1). Finally, two recent earthquakes, a M7.8 in 2012 (“Haida Gwaii earthquake”) and M7.5 in 2013 (“Craig earthquake”) stimulated a substantial amount of scientific study of the QCFF and renewed concern over potential threats to coastal infrastructure and populations residing in southeastern Alaska and northwestern British Columbia. Survey goals included determining how fast the two sides of the fault move past each other (slip rate) and deciphering the historical movement of the fault. We also want to better understand how large earthquakes might trigger potentially dangerous underwater landslides. The purpose of this data is to provide a detailed bathymetric terrain model of a portion of the Queen Charlotte Fault and adjacent seafloor. Supplemental_Information: Additional information about the field activities from which these data were derived is available online at: https://cmdgs.marine.usgs.gov/fan_info.php?fan=2016-625-FA 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: 20160517 Ending_Date: 20160612 Currentness_Reference: Ground condition at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -136.913215 East_Bounding_Coordinate: -134.338608 North_Bounding_Coordinate: 58.023711 South_Bounding_Coordinate: 55.031169 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5a0a213fe4b09af898c9ef04 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: Oceans Theme_Keyword: Elevation Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Theme_Keyword: Bathymetry Theme_Keyword: Continental Margins Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Bathymetry and Elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sea-floor characteristics Theme_Keyword: bathymetry Theme_Keyword: multibeam sonar Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: multibeam echo sounder Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Alaska Department of Fish and Game Theme_Keyword: ADFG Theme_Keyword: TerraSond Theme_Keyword: Reson 7160 Theme_Keyword: seafloor Theme_Keyword: R/V Medeia Theme_Keyword: depth Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: United States of America Place_Keyword: Pacific OceanPlace_Keyword: Gulf of Alaska Place_Keyword: Chichagof Island Place_Keyword: Baranof Island Place_Keyword: Chatham Strait Place_Keyword: Yakutat Place_Keyword: Sitka Place_Keyword: Mount Edgecumbe Place_Keyword: Dixon Entrance Place_Keyword: Cross Sound Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: North Pacific Ocean Place_Keyword: Noyes Canyon Place_Keyword: Yakobi Valley Place_Keyword: Heceta Knoll Place_Keyword: Baranof Fan Place: Place_Keyword_Thesaurus: none Place_Keyword: Barnegat Inlet Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: seafloor Stratum_Keyword: Land surface Temporal: Temporal_Keyword_Thesaurus: none Temporal_Keyword: 2016 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: https://www.sciencebase.gov/catalog/file/get/5a0a213fe4b09af898c9ef04?name=2016-625-FA_multibeam_index_map.jpg&allowOpen=true Browse_Graphic_File_Description: Thumbnail image of bathymetric terrain model of Queen Charlotte Fault area, southeastern Gulf of Alaska. Browse_Graphic_File_Type: JPEG Data_Set_Credit: Data was collected aboard Alaska Department of Fish and Game’s R/V Medeia and would not be possible without the support of vessel crew members Jim deLaBruere, Craig Conger, Cedar Stark, and Becky Wilson. Native_Data_Set_Environment: Bathymetry data were collected using a Reson SeaBat 7160 multibeam echosounder operating at a frequency of 44 kHz. The sonar transducer was mounted from the starboard side of the R/V Medeia about below the waterline (lever arm offsets (meters) X:4.26 Y:-4.171 Z:2.966)(Patch Test Offsets as follows, Roll: 2.18 Pitch: -0.38 Heading: -1.90). Data were collected using the Reson 7k Control Center and HYPACK (v. 2016). Vessel attitude was recorded using an Applanix POS MV 320 V5 to provide attitude and positioning that was mounted on the centerline of the vessel. Speed of sound was recorded at 5-8 hour intervals using a Oceanscience RapidCAST SV system mounted on the starboard quarter. Navigation was recorded using Differential Global Positioning System and a Hemisphere MBX-4 GPS receivers mounted on above the bridge. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Accuracy checks were performed during data collection. Logical_Consistency_Report: No formal logical accuracy tests were conducted. 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: +/- 2 meters for the Applanix POS MV positioning system mounted on the centerline of the vessel Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: +/- 15 centimeters for the Applanix POS MV positioning system mounted on the centerline of the vessel Lineage: Process_Step: Process_Description: Data Acquisition multibeam bathymetry data were collected along the Queen Charlotte fault in southeast Alaska using a Reson SeaBat 7160 multibeam sonar operating at a frequency of 44 kHz that was mounted on wing-mount from the starboard side of the R/V Medeia owned and operated by the Alaska Department of Fish and Game. The sonar collected depth, backscatter (time series), and water column data along approximately 4,178 kilometers of survey lines oriented parallel with the gradient of the continental shelf west of Chichagof and Baranof islands in southeast Alaska. Data were collected using the Reson 7k Control Center and HYPACK (v. 2016). Vessel attitude was recorded using an Applanix POS MV 320 V5 to provide attitude and positioning that was mounted on the centerline of the vessel. Speed of sound was recorded at 5-8 hour intervals using a Oceanscience RapidCAST SV system mounted on the starboard quarter. Navigation was recorded using Differential Global Positioning System and a Hemisphere MBX-4 GPS receivers mounted on above the bridge. Data are combined into zip files per Julian Day. Within each zip file there are three file types per transect line. The files are named with an alpha-numeric code in AAA_BBB_CCCC.7K, .HSX, or .RAW format, where AAA is the Julian Day of collection, BBB is the transect line number, and CCCC is the UTC time of collection. Files with the .7K suffix are raw bathymetry data, .HSX are raw bathymetry data with ship motion included, and .RAW are raw navigation data. Process_Date: 20160620 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Doug MacGillivray Contact_Organization: TerraSond LLC Contact_Position: Survey Technician Contact_Address: Address_Type: mailing and physical Address: 1617 South Industrial Way, Suite 3 City: Palmer State_or_Province: AK Postal_Code: 99645 Contact_Voice_Telephone: 907-745-7215 Contact_Facsimile_Telephone: 907-745-7273 Contact_Electronic_Mail_Address: info@terrasond.com 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 Process_Step: Process_Description: Edited metadata to 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. Process_Date: 20211026 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 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 8 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -135.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 20.000000 Ordinate_Resolution: 20.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: WGS 84 Altitude_Resolution: 0.1 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: .HSX, .RAW, and .7K files Entity_Type_Definition: HSX=Hypack format for raw sonar files (ASCII format); RAW=Hypack format for raw navigation files (ASCII format); 7K=Reson format for raw bathymetry files Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: DFT Attribute_Definition: Dynamic Draft (Squat) Correction Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three space delimited numbers; the device number (listed in headers), the time lag measured in seconds past midnight, and the draft correction. Attribute: Attribute_Label: FIX Attribute_Definition: Fix (Event) Mark Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three space delimited numbers; the device number (listed in headers), the time lag measured in seconds past midnight, and the event number (listed sequentially). Attribute: Attribute_Label: HCP Attribute_Definition: Heave Compensation Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Five space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, heave in meters, roll in degrees (positive for port side up and negative for starboard side up), pitch in degrees (positive for bow up and negative for stern up). Attribute: Attribute_Label: EC1 Attribute_Definition: Echo Sounding (single frequency) Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, raw depth (meters). Attribute: Attribute_Label: GPS Attribute_Definition: GPS measurements Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Eight space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, course over ground (degrees), speed over ground (knots), GPS hdop, GPS mode, number of satellites. Attribute: Attribute_Label: GYR Attribute_Definition: Gyro Data (heading) Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three numbers; the device number (listed in headers), time lag measured in seconds past midnight, and ship heading angle. Attribute: Attribute_Label: POS Attribute_Definition: Position Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Four space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, x value (easting) and y value (northing) (UTM zone 8N). Attribute: Attribute_Label: PSA Attribute_Definition: Pitch Stabilization Angle Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Five space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, ping number, projector pitch angle (head 0), and projector pitch angle (head 1). Note PSA records follow RMB records when pitch stabilization is active. Attribute: Attribute_Label: RMB Attribute_Definition: Raw Multibeam data Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Nine space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, sonar type code (listed in headers), sonar flags (listed in headers), available beam data (listed in headers), number of beams to follow, sound velocity (m/sec), and ping number. Immediately following the RMB record is a record containing slant ranges in work units. Attribute: Attribute_Label: RSS Attribute_Definition: Raw Sidescan Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Thirteen space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, sonar flags (bit coded hexadecimal format), number of samples of the port transducer, number of samples from the starboard transducer, sound velocity (m/sec), ping number, altitiude (m), sample rate (samples/second), minimum amplitude, maximum amplitude, bit shift for byte recording, and frequency (either 0 or 1 for simultaneous dual frequency operation). Immediately following the RSS record are two amplitude samples from the port and starboard, respectively. Attribute: Attribute_Label: SNR Attribute_Definition: Sonar Runtime Settings Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Six space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, ping number, sonar ID (listed in headers), number of settings to follow (whole number between 1 and 12), and settings listed (values for settings listed). Attribute: Attribute_Label: TID Attribute_Definition: Tide Correction Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, and the tide correction (positive or negative number). Attribute: Attribute_Label: POS Attribute_Definition: Position of ship Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Four space delimited numbers; the device number (listed in headers), the time lag measured in seconds past midnight, and x and y position of the ship from the antenna (northing and easting, UTM zone 8N) Attribute: Attribute_Label: QUA Attribute_Definition: Position quality information Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Seven space delimited numbers; the device number (listed in headers), the time lag measured in seconds past midnight, number of values to follow, ten minus the horizontal dilution of precision, value for the horizontal dilution of precision, number of satellites, and GPS mode (listed in headers). Attribute: Attribute_Label: RAW Attribute_Definition: Position information Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Seven space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, number of values to follow, latitude (raw latitude times 100), longitude (raw longitude times 100), antenna altitude above ellipsoid (meters), utc time (format HHMM). Attribute: Attribute_Label: GYR Attribute_Definition: Gyro data (heading) Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, and ship heading angle. Attribute: Attribute_Label: MSG Attribute_Definition: Message string Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Two space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight and a message string beginning with $GPR and ending with $#. The string contains position data sent from the shipboard GPS unit. Attribute: Attribute_Label: EC1 Attribute_Definition: Echo Sounding (single frequency) Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Three space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, and raw depth (meters). Attribute: Attribute_Label: HCP Attribute_Definition: Heave Compensation Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Five space delimited numbers; the device number (listed in headers), time lag measured in seconds past midnight, heave in meters, roll in degrees (positive for port side up and negative for starboard side up), pitch in degrees (positive for bow up and negative for stern up). Attribute: Attribute_Label: FIX Attribute_Definition: Fix (Event) Mark Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Five space delimited numbers; the device number (listed in headers), the time lag measured in seconds past midnight, the event number, and x and y position (northing and easting, UTM zone 8N). This fix marks the end of the .RAW navigation file. Attribute: Attribute_Label: Magnitude Attribute_Definition: Magnitude of returned signal Attribute_Definition_Source: Reson Attribute_Domain_Values: Unrepresentable_Domain: Magnigude of returned beam signal with a time vaied gain applied to it. Attribute: Attribute_Label: Phase Attribute_Definition: Phase of returned signal Attribute_Definition_Source: Hypack Attribute_Domain_Values: Unrepresentable_Domain: Phase of returned beam signal. Overview_Description: Entity_and_Attribute_Overview: HSX files begin with 28 header rows describing collection methods and are followed by data rows. Data rows consist of 12 different data types (listed as attributes above). RAW files begin with 22 header rows and are followed by data rows. Data rows consist of 8 types of data types (listed as attributes above. Reson 7K files are generic data records for the returned beam data consisting of magnitude and phase of the returned beams. These data are organized into separate zip files based on the date of collection (Julian day). Within each Julian Day folder, there are RAW, HSX, and 7K files labeled in the format ###_###_####.*; the first number corresponding to the Julian Day of collection, line number, and UTC time of collection. Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: Mailing and Physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: These data are available for download organized into zip files by Julian Day of collection. Within each zip file there are several HSX, RAW, and 7K files. FGDC-compliant metadata is downloadable separately. 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: ASCII Format_Information_Content: Zip files are organized by Julian Day of collection and contain raw multibeam bathymetry data, raw navigation data and ship motion data. Associated metadata is downloadable separately. Individual zip files are available for individual download from the listing at https://www.sciencebase.gov/catalog/item/5a0a213fe4b09af898c9ef04 File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files. Transfer_Size: 22250 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5a0a213fe4b09af898c9ef04 Network_Resource_Name: https://doi.org/10.5066/F7NG4PTW Access_Instructions: Data can be downloaded via the Internet Fees: None. Technical_Prerequisites: HSX and RAW files can be viewed with any text editor capable of reading ASCII format including WordPad and Text wrangler, in addition to Caris HIPS and SIPS, SonarWiz, and Qimera. 7K files can be viewed using Fledermaus FMMidwater software or other software described on Teledyne's website (http://www.teledyne-pds.com/wp-content/uploads/2017/06/DATA-FORMAT-DEFINITION-7k-Data-Format-Version-3.07.pdf). Metadata_Reference_Information: Metadata_Date: 20211026 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