Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Seth D. Ackerman
        Publication_Date: 20231114
        Title: RAW sound velocity profile data from a Minos X collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA (PNG images, SVP text, and point shapefile, GCS WGS 84)
        Edition: 1.0
        Geospatial_Data_Presentation_Form: PNG images, ASCII text, and Shapefile
        Series_Information:
          Series_Name: data release
          Issue_Identification: DOI:10.5066/P9GO90TI
        Publication_Information:
          Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
          Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
        Online_Linkage: https://doi.org/10.5066/P9GO90TI
        Online_Linkage: https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9GO90TI/
        Larger_Work_Citation:
          Citation_Information:
            Originator: Seth D. Ackerman
            Originator: David S. Foster
            Originator: Charles R. Worley
            Originator: Alexander R. Nichols
            Publication_Date: 2023
            Title: High-resolution geophysical and geological data collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA
            Edition: 1.0
            Series_Information:
              Series_Name: data release
              Issue_Identification: DOI:10.5066/P9GO90TI
            Publication_Information:
              Publication_Place: Reston, VA
              Publisher: U.S. Geological Survey
            Other_Citation_Details: Suggested citation:  Ackerman, S.D., Foster, D.S., Worley, C.R., and Nichols, A.R., 2023, High-resolution geophysical and geological data collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9GO90TI.
            Online_Linkage: https://doi.org/10.5066/P9GO90TI
            Online_Linkage: https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9GO90TI/
    Description:
      Abstract: The U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center (WHCMSC) completed a bathymetric and shallow seismic-reflection survey during the period of June 9, 2021 to June 24, 2021 in water depths from 2 m to 30 m for a portion of the outer Cape Cod nearshore environment between Marconi and Nauset Beaches. The products from this survey will help to support white shark research on their shallow-water behavior in the dynamic nearshore environment at Cape Cod National Seashore (CACO). CACO visitors’ safety is threatened by interactions between the public and white sharks. This project provides CACO with baseline data and information on nearshore white shark habitat, specifically in the nearshore shoreface, bathymetric trough, and longshore bar. This data release provides the geophysical  data collected from outer Cape Cod during USGS Field Activities 2021-002-FA in 2021.
      Purpose: This dataset is used to display the locations of sound velocity profiles collected with AML Minos X SVP (sound velocity profiler) during survey 2021-004-FA from outer Cape Cod, Massachusetts. The information contained within the sound velocity profiles is needed to account for refraction artifacts that may be present within raw swath bathymetric data. This dataset contains graphs of the raw sound velocity profile at each station location, as well as location in Geographic Coordinate System (GCS) WGS 84 latitude and longitude, time of day and date of collection.
      Supplemental_Information: Support for 2021-004-FA was provided to the USGS from the National Park Service, Cape Cod National Seashore. Additional information on the field activities associated with this project are available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-004-FA
    Time_Period_of_Content:
      Time_Period_Information:
        Range_of_Dates/Times:
          Beginning_Date: 20210609
          Ending_Date: 20210624
      Currentness_Reference: ground condition
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None planned
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -69.97640
        East_Bounding_Coordinate: -69.91500
        North_Bounding_Coordinate: 41.94240
        South_Bounding_Coordinate: 41.78320
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: USGS Metadata Identifier
        Theme_Keyword: USGS:1ab80de8-c258-44b7-9260-506cc9191111
      Theme:
        Theme_Keyword_Thesaurus: None
        Theme_Keyword: U.S. Geological Survey
        Theme_Keyword: USGS
        Theme_Keyword: Woods Hole Coastal and Marine Science Center
        Theme_Keyword: WHCMSC
        Theme_Keyword: Coastal and Marine Hazards and Resources Program
        Theme_Keyword: CMHRP
        Theme_Keyword: Department of the Interior
        Theme_Keyword: DOI
        Theme_Keyword: Cape Cod National Seashore
        Theme_Keyword: CACO
        Theme_Keyword: National Park Service
        Theme_Keyword: NPS
        Theme_Keyword: Massachusetts Office of Coastal Zone Management
        Theme_Keyword: CZM
        Theme_Keyword: MassCZM
        Theme_Keyword: field activity number 2021-004-FA
        Theme_Keyword: moving vessel profiler
        Theme_Keyword: shapefile
        Theme_Keyword: AML Minos X
        Theme_Keyword: Esri shapefile
        Theme_Keyword: RV Rafael
        Theme_Keyword: SVP
        Theme_Keyword: sound velocity profile
        Theme_Keyword: SSP
        Theme_Keyword: sound speed profile
        Theme_Keyword: Marine Geology
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: oceans
        Theme_Keyword: geoscientificInformation
        Theme_Keyword: location
      Theme:
        Theme_Keyword_Thesaurus: USGS Thesaurus
        Theme_Keyword: sound velocity
        Theme_Keyword: profiles
        Theme_Keyword: ocean sciences
        Theme_Keyword: navigational data
      Place:
        Place_Keyword_Thesaurus: None
        Place_Keyword: United States of America
        Place_Keyword: Atlantic Ocean
        Place_Keyword: Atlantic Margin
        Place_Keyword: Cape Cod
        Place_Keyword: Massachusetts
        Place_Keyword: Orleans
        Place_Keyword: Eastham
        Place_Keyword: Wellfleet
        Place_Keyword: Marconi Beach
        Place_Keyword: Nauset Beach
      Temporal:
        Temporal_Keyword_Thesaurus: none
        Temporal_Keyword: 2021
    Access_Constraints: none
    Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
    Point_of_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Seth Ackerman
          Contact_Organization: U.S. Geological Survey
        Contact_Position: Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 384 Woods Hole Rd.
          City: Woods Hole
          State_or_Province: MA
          Postal_Code: 02543-1598
          Country: USA
        Contact_Voice_Telephone: 508-548-8700 x2315
        Contact_Facsimile_Telephone: 508-457-2310
        Contact_Electronic_Mail_Address: sackerman@usgs.gov
    Browse_Graphic:
      Browse_Graphic_File_Name: https://cmgds.marine.usgs.gov/data-releases/media/2022/10.5066-P9GO90TI/d3f2a087b27d4d02a49448a329dd8afa/2021-004-FA_SVP_data_browse.jpg
      Browse_Graphic_File_Description: Thumbnail image of sound speed profile locations collected from outer Cape Cod, Massachusetts.
      Browse_Graphic_File_Type: JPEG
    Cross_Reference:
      Citation_Information:
        Originator: Fofonoff, N.
        Originator: Millard, R.
        Publication_Date: 1983
        Title: Algorithms for Computation of Fundamental Properties of Seawater
        Series_Information:
          Series_Name: UNESCO Tech. Pap. Mar. Sci.
          Issue_Identification: 44
        Online_Linkage: https://www.researchgate.net/publication/33549403_Algorithms_for_Computation_of_Fundamental_Properties_of_Seawater
  Data_Quality_Information:
    Logical_Consistency_Report: Sound velocity profiles were acquired with an AML Minos X Sound Velocity Profiler (SVP).
    Completeness_Report: A total of 45 sound velocity profiles were collected during survey 2021-004-FA and are included in this dataset. Profiles are named sequentially beginning with the casts collected on the first day of surveying. Any gap in sequential numbering indicates invalid or unusable profile data (there is no data for casts 3, 9-11, 14, 19, and 25).
    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report: Navigation data were acquired using the WGS 84 coordinate system with an Applanix POS MV Wavemaster (model 220, V5), which blends Global Navigation Satellite Systems (GNSS) with acceleration data from a Motion Reference Unit (MRU) and GPS azimuthal heading. The POS MV was configured with two AeroAntenna Technologies GPS antennas located at either end of a 2-m baseline, which was oriented athwartship and mounted atop the aft end of cabin.  Positioning data from these GPS receivers were recorded using HYPACK software version 19.0.6.0 during the entire geophysical survey and positions were used for SVP deployment locations. DGPS positions are horizontally accurate to 0.5 - 2 meters. However, offsets from the location of the SVP deployment point and the GPS antenna were not measured, and therefore the horizontal accuracy of the sound velocity profile locations is considered to be within 2 m.
      Vertical_Positional_Accuracy:
        Vertical_Positional_Accuracy_Report: Minos X depths are calculated by the AML SeaCast software (version 4.4); the software converts pressure sensor readings to depth using the standard formulas described in Fofonoff, N.P. and Millard, R.C., Jr., 1988, Algorithms for computation of fundamental properties of seawater, UNESCO Technical Papers in Marine Science, No. 44. The depths are estimated to be accurate to within 1 meter.
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: U.S. Geological Survey
            Publication_Date: Unpublished Material
            Title: Sound Velocity Data in ASVP format
        Type_of_Source_Media: disc
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 20210609
              Ending_Date: 20210624
          Source_Currentness_Reference: ground condition
        Source_Citation_Abbreviation: raw sound velocity data
        Source_Contribution: Sound speed profiles were collected to correct refraction artifacts in the multibeam bathymetric data that can occur due to changes in the speed of sound throughout the water column.
      Process_Step:
        Process_Description: The Minos X hand-deployed sound velocity profiler was deployed approximately 1-2 hours to collect sound velocity, pressure, and temperature profiles in the water column. AML SeaCast software (v. 4.4) was used to read the profile data from the Minos X, export all raw cast data to an AML SeaCast (.csv) formatted file, then edit the sound velocity profile to preserve only the downcast portion of the deployment and export it to a Kongsberg SIS ASCII (.asvp) formatted file.
        Process_Date: 20210624
        Process_Contact:
          Contact_Information:
            Contact_Person_Primary:
              Contact_Person: Charles R Worley
              Contact_Organization: U.S. Geological Survey
            Contact_Position: Physical Scientist
            Contact_Address:
              Address_Type: mailing and physical address
              Address: 384 Woods Hole Rd.
              City: Woods Hole
              State_or_Province: MA
              Postal_Code: 02543-1598
            Contact_Voice_Telephone: (508) 548-8700 x2250
            Contact_Facsimile_Telephone: (508) 457-2310
            Contact_Electronic_Mail_Address: cworley@usgs.gov
      Process_Step:
        Process_Description: A Python script (plotMVPsql_2021_004_py3) was used to read the ASVP data and plot the sound speed profile as speed of sound (meter/second) versus depth (meters). Position, Date, Time, and Profile ID were pulled from the ASVP header and written into the image (PNG) for reference. Within the same script, the Position, Julian day, Time, and Profile ID were also imported to a geospatial SQLite (version 3.26.0) database using the pyspatialite interface. The geographic positions were used to create point geometries for the station locations, and additional fields indicating survey ID, vessel ID, and device ID were added within the Python script. Lastly, the Python script also reformats the parsed ASVP data into sound velocity files that are ready for import into CARIS HIPS to be used for correcting refraction artifacts typically found in swath bathymetry data. The contact person for this and all subsequent processing steps below is Seth Ackerman.
        Process_Date: 20210701
        Process_Contact:
          Contact_Information:
            Contact_Person_Primary:
              Contact_Person: Seth Ackerman
              Contact_Organization: U.S. Geological Survey
            Contact_Position: Geologist
            Contact_Address:
              Address_Type: mailing and physical address
              Address: 384 Woods Hole Rd.
              City: Woods Hole
              State_or_Province: MA
              Postal_Code: 02543-1598
              Country: USA
            Contact_Voice_Telephone: 508-548-8700 x2315
            Contact_Facsimile_Telephone: 508-457-2310
            Contact_Electronic_Mail_Address: sackerman@usgs.gov
      Process_Step:
        Process_Description: The sound velocity cast locations were brought into QGIS (version 3.28) and then exported in Esri Shapefile format using the CRS WGS 84 (EPSG:4326).
        Process_Date: 20221206
  Spatial_Data_Organization_Information:
    Direct_Spatial_Reference_Method: Vector
    Point_and_Vector_Object_Information:
      SDTS_Terms_Description:
        SDTS_Point_and_Vector_Object_Type: Entity point
        Point_and_Vector_Object_Count: 45
  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Latitude_Resolution: 0.0000054863
        Longitude_Resolution: 0.000007073695
        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: 2021-004-FA_SVP_data.shp
        Entity_Type_Definition: Sound velocity locations collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA.
        Entity_Type_Definition_Source: U.S. Geological Survey
      Attribute:
        Attribute_Label: Lon
        Attribute_Definition: Decimal degree longitude value in GCS WGS 84.
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -69.976369
            Range_Domain_Maximum: -69.915031
            Attribute_Units_of_Measure: degrees
            Attribute_Measurement_Resolution: .000001
      Attribute:
        Attribute_Label: Lat
        Attribute_Definition: Decimal degree latitude value in GCS WGS 84.
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 41.783164
            Range_Domain_Maximum: 41.942357
            Attribute_Units_of_Measure: degrees
            Attribute_Measurement_Resolution: .000001
      Attribute:
        Attribute_Label: SVP
        Attribute_Definition: Name of sound velocity profile used to distinguish between casts. Profile names are in the format: Cast_0001, where 'Cast' indicates a sound velocity cast, '0001' indicates the incremental cast number (see note in the completeness report about missing/corrupt casts).
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character set
      Attribute:
        Attribute_Label: Date
        Attribute_Definition: Month/Day/Year when the sound velocity cast was collected.
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character set
      Attribute:
        Attribute_Label: JD_UTC
        Attribute_Definition: Julian day and UTC time when the sound velocity cast was collected in the format: JD:HH:MM; Julian day is the integer number (although recorded here in text string format) representing the interval of time in days since January 1 of the year of collection.
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character set
      Attribute:
        Attribute_Label: SurveyID
        Attribute_Definition: WHCMSC field activity identifier (e.g. "2021-004-FA" where 2021 is the survey year, 004 is survey number of that year, and FA is Field Activity).
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character set
      Attribute:
        Attribute_Label: VehicleID
        Attribute_Definition: Survey vessel name.
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character set
      Attribute:
        Attribute_Label: DeviceID
        Attribute_Definition: Device used to collect sound speed profile data.
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character set
    Overview_Description:
      Entity_and_Attribute_Overview: The PNG images can be hyperlinked to their shapefile location in ArcGIS using the field called SVP. The graphs show depth on the y-axis and speed of sound on the x-axis. The format of the CARIS SVP files is as follows: Header line 1:[SVP_VERSION_2] - the standard CARIS SVP header line; Header line 2:filename; Header line 3:Section YYYY-JJJ HH:MM:SS DD:MM:SS -DD:MM:SS where YYYY is the year, JJJ is the Julian day, HH:MM:SS is the UTC time, DD:MM:SS is the latitude (in degrees, minutes, seconds) and -DD:MM:SS is the longitude (in degrees, minutes, seconds).  The header is followed by column data of depth (meters) and speed of sound (meters per second).
      Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey
          Contact_Person: Coastal and Marine Hazards and Resources Program
        Contact_Position: Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 384 Woods Hole Rd.
          City: Woods Hole
          State_or_Province: MA
          Postal_Code: 02543-1598
          Country: USA
        Contact_Voice_Telephone: 508-548-8700 x2315
        Contact_Facsimile_Telephone: 508-457-2310
        Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
    Resource_Description: Sound velocity profile data collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA, using an AML Oceanographic Moving Vessel Profiler and an AML Minos X sound velocity profiler: includes the shapefile 2021-004-FA_SVP_data.shp, 45 PNG images representing all sound speed profiles graphically (2021-004-FA_SVP_Images.zip), 45 .svp ASCII files that represent all sound speed profile data (2021-004-FA_SVP_SVP.zip), a browse graphic (2021-004-FA_SVP_data_browse.jpg) and a Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata file (2021-004-FA_SVP_data_meta.xml).
    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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: Shapefile
          Format_Version_Number: QGIS (version 3.28)
          Format_Specification: Shapefile
          Format_Information_Content: Shapefile of sound velocity profile data cast locations collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA and the associated metadata.
          File_Decompression_Technique: Use any zip decompression utility. To utilize these data, the user must have software capable of viewing shapefiles.
          Transfer_Size: 0.1
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/media/2022/10.5066-P9GO90TI/5730a4c0222749f2a7a6c2e17c8ca8e5/2021-004-FA_SVP_data.zip
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9GO90TI/
                Network_Resource_Name: https://doi.org/10.5066/P9GO90TI
            Access_Instructions: The data can be downloaded using the Network Resource Name links. The first link is a direct link to download the zipped file of data. The second and third links are to a landing page for the entire data release where the data, metadata, and browse graphic can be downloaded.
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: SVP
          Format_Version_Number: 1.0
          Format_Specification: CARIS ASCII file format (SVP)
          Format_Information_Content: The zip file contains CARIS SVP text files of sound speed profile data collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA and the associated metadata.
          File_Decompression_Technique: Use any zip decompression utility
          Transfer_Size: 0.4
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/media/2022/10.5066-P9GO90TI/5730a4c0222749f2a7a6c2e17c8ca8e5/2021-004-FA_SVP_data.zip
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9GO90TI/
                Network_Resource_Name: https://doi.org/10.5066/P9GO90TI
            Access_Instructions: The data can be downloaded using the Network Resource Name links. The first link is a direct link to download the zipped file of data. The second and third links are to a landing page for the entire data release where the data, metadata, and browse graphic can be downloaded.
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: PNG
          Format_Version_Number: ImageMagick (version 7.0.8-11)
          Format_Specification: Portable Network Graphic (PNG)
          Format_Information_Content: The zip file contains sound speed profile images of sound speed profile data collected from outer Cape Cod, Massachusetts during USGS Field Activity 2021-004-FA and the associated metadata.
          File_Decompression_Technique: Use any zip decompression utility
          Transfer_Size: 2.5
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/media/2022/10.5066-P9GO90TI/5730a4c0222749f2a7a6c2e17c8ca8e5/2021-004-FA_SVP_data.zip
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9GO90TI/
                Network_Resource_Name: https://doi.org/10.5066/P9GO90TI
            Access_Instructions: The data can be downloaded using the Network Resource Name links. The first link is a direct link to download the zipped file of data. The second and third links are to a landing page for the entire data release where the data, metadata, and browse graphic can be downloaded.
      Fees: none
    Technical_Prerequisites: This zip file contains data available in shapefile, SVP and PNG formats. The user must have software capable of reading shapefile format to use these data. The SVP files can be read with a text editor. PNG files can be viewed with any PNG image viewing software. The zip files must be uncompressed in order to view the images.
  Metadata_Reference_Information:
    Metadata_Date: 20231114
    Metadata_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Seth Ackerman
          Contact_Organization: U.S. Geological Survey
        Contact_Position: Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 384 Woods Hole Rd.
          City: Woods Hole
          State_or_Province: MA
          Postal_Code: 02543-1598
          Country: USA
        Contact_Voice_Telephone: 508-548-8700 x2315
        Contact_Facsimile_Telephone: 508-457-2310
        Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
    Metadata_Standard_Name: Content Standards for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
    Metadata_Time_Convention: local time