Metadata: Identification_Information: Citation: Citation_Information: Originator: Brian D. Andrews Publication_Date: 20230309 Title: Sound Velocity Profiles collected in Nantucket Sound Massachusetts in the vicinity of Horseshoe Shoal, during USGS Field Activity 2022-001-FA using AML-3 LGR or AML Minos-X CTDSV sensors (PNG images, SVP text, and ESRI point shapefile, GCS WGS 84) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9O5G5OT 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/P9O5G5OT Online_Linkage: https://www.sciencebase.gov/catalog/item/63eba5fcd34efa0476af1fa5 Larger_Work_Citation: Citation_Information: Originator: Brian D. Andrews Originator: Wayne E. Baldwin Originator: Charles R. Worley Originator: Eric M. Moore Originator: Alex R. Nichols Originator: William W. Danforth Originator: David S. Foster Originator: Seth D. Ackerman Originator: Laura L. Brothers Publication_Date: 2023 Title: High-resolution geophysical data collected in Nantucket Sound Massachusetts in the vicinity of Horseshoe Shoal, during USGS Field Activity 2022-001-FA Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9O5G5OT Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Andrews, B.D., Baldwin, W.E., Worley, C.R., Moore, E.M., Nichols, A.R., Danforth, W.W., Foster, D.S., Ackerman, S.D., and Brothers, L.L. 2023, High-resolution geophysical data collected in Nantucket Sound Massachusetts in the vicinity of Horseshoe Shoal, during USGS Field Activity 2022-001-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9O5G5OT Online_Linkage: https://doi.org/10.5066/P9O5G5OT Online_Linkage: https://www.sciencebase.gov/catalog/item/63e3e041d34e9fa19a9bb703 Description: Abstract: In June 2022, the U.S. Geological Survey, in collaboration with the Massachusetts Office of Coastal Zone Management, collected high-resolution geophysical data, in Nantucket Sound to understand the regional geology in the vicinity of Horseshoe Shoal. This effort is part of a long-term collaboration between the USGS and the Commonwealth of Massachusetts to map the State’s waters, support research on the Quaternary evolution of coastal Massachusetts, resolve the influence of sea-level change and sediment supply on coastal evolution, and strengthen efforts to understand the type, distribution, and quality of subtidal marine habitats. This collaboration produces high-resolution geologic data that serve the needs of research, management, and the public. Data collected as part of this mapping cooperative continue to be released in a series of USGS Open-File Reports and Data Releases https://www.usgs.gov/centers/whcmsc/science/geologic-mapping-massachusetts-seafloor. Purpose: Water column speed of sound data were acquired periodically throughout the survey and used during collection and post-processing of Reson T-20P bathymetry data. Sound speed profile data are included in this publication as CARIS SVP format text files, PNG image plots of the profiles, and an ESRI point shapefile of the profile locations. Supplemental_Information: Support for 2022-001-FA was provided to the USGS from the Massachusetts Office of Coastal Zone Management. Data were collected using the R/V Rafael, owned and operated by the USGS Woods Hole Coastal and Marine Science Center. Additional information on the field activity is available from https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-001-FA. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20220603 Ending_Date: 20220621 Currentness_Reference: data were collected on the following dates: 20220603-20220607 (Julian day 154-158), 20220610-20220614 (Julian day 161-165), and 20220620-20220621 (Julian day 171-172) Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.482500 East_Bounding_Coordinate: -70.271388 North_Bounding_Coordinate: 41.572222 South_Bounding_Coordinate: 41.497500 Keywords: 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: Massachusetts Office of Coastal Zone Management Theme_Keyword: CZM Theme_Keyword: MassCZM Theme_Keyword: field activity number 2022-001-FA Theme_Keyword: R/V Rafael Theme_Keyword: shapefile Theme_Keyword: sound velocity profile Theme_Keyword: SVP Theme_Keyword: SSP Theme_Keyword: sound speed profile Theme_Keyword: AML-3 LGR Theme_Keyword: AML Minos-X Theme_Keyword: CTDSV Theme_Keyword: T20-P Theme_Keyword: Marine Geology Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: location Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sound velocity Theme_Keyword: profiles Theme_Keyword: ocean sciences Theme_Keyword: navigational data Theme_Keyword: marine geophysics Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:63eba5fcd34efa0476af1fa5 Place: Place_Keyword_Thesaurus: None Place_Keyword: United States of America Place_Keyword: Atlantic Ocean Place_Keyword: Nantucket Sound Place_Keyword: Horseshoe Shoal Place_Keyword: Eldridge Shoal Place_Keyword: Succonnesset Shoal Place_Keyword: Wreck Shoal Place_Keyword: Massachusetts Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: water column Temporal: Temporal_Keyword_Thesaurus: none Temporal_Keyword: 2022 Access_Constraints: none Use_Constraints: Public domain data from the U.S. Government are freely re-distributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. These data are not to be used for navigation. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Brian Andrews Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: Massachusetts Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/63eba5fcd34efa0476af1fa5?name=2022-001-FA_SVP_data_browse.jpg Browse_Graphic_File_Description: Thumbnail image of SVP locations collected within Nantucket Sound Massachusetts in the vicinity of Horseshoe Shoal, during USGS Field Activity 2022-001-FA. 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 Cross_Reference: Citation_Information: Originator: Baldwin, W.E. Originator: Foster, D.S. Originator: Pendleton, E.A. Originator: Barnhardt., W.A. Originator: Schwab, W.C. Originator: Andrews, B.D. Originator: Ackerman, S.D. Publication_Date: 2016 Title: Shallow Geology, Sea-floor Texture, and Physiographic Zones of Vineyard and western Nantucket Sounds, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2016-1119 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/ofr20161119 Cross_Reference: Citation_Information: Originator: Pendleton, E.A. Originator: Andrews, B.D. Originator: Ackerman, S.D. Originator: Danforth, W.W. Originator: Foster, D.S. Publication_Date: 2014 Title: High-resolution geophysical data collected aboard the U.S. Geological Survey research vessel Rafael to supplement existing datasets from Buzzards Bay and Vineyard Sound, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2013–1020 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/ofr20131020 Cross_Reference: Citation_Information: Originator: Andrews, B.D. Originator: Ackerman, S.D. Originator: Baldwin, W.E. Originator: Foster, D.S. Originator: Schwab, W.C. Publication_Date: 2013 Title: High-resolution geophysical data from the inner continental shelf at Vineyard Sound, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2012–1006 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/ofr20121006 Data_Quality_Information: Logical_Consistency_Report: Sound velocity profiles were acquired with an AML-3 LGR or AML Minos-X CTDSV sensor. Completeness_Report: A total of 46 sound velocity profiles were collected during cruise 2022-001-FA and are included in this dataset. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: When using the AML-3 LGR unit, navigation data were acquired by the Differential Global Positioning System (DGPS) inside the unit and directly inserted into the raw AML file header. When using the AML Minos-X, navigation data were recorded using an Applanix POS MV Wavemaster (model 220, V5) Global Navigation Satellite Systems (GNSS) and logged continuously in HYPACK (version 22.1.4.0). HYPACK targets were created at each cast location, coordinates were copied, and inserted manually into the AML SeaCast software (version 4.40) during download and export of each profile. 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 after end of the cabin. POS MV DGPS positions were obtained from the primary antenna (port end of the 2-m baseline configuration). DGPS positions are horizontally accurate to 0.5 - 2 meters. However, offsets between the deployment location and the primary antenna were not accounted for, so the sound velocity profile positions are considered to be accurate to within 2-5 m. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: AML-3 LGR or Minos-X profile depths are calculated by either AML SeaCast (version 4.4) or Sailfish (version 4.4) software, respectively; both softwares convert 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 svp format Geospatial_Data_Presentation_Form: digital data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20220603 Ending_Date: 20220621 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: RAW SOUND VELOCITY PROFILE DATA Source_Contribution: Forty-six sound velocity profiles were collected during the survey 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: PROCESSING STEP 1: COLLECT SOUND VELOCITY PROFILES. Sound velocity profiles were collected 1-7 times per survey day using AML-3 LGR or Minos-X CTDSV sensors. Cast timing was determined depending on water column properties and the quality of real-time multibeam bathymetric data acquisition. The profiler sensor was hand-deployed from the after deck of R/V Rafael while the vessel was not making way. Once back on deck, data from the sensor were downloaded using either AML SeaCast (version 4.4; for AML-3 LGR) or Sailfish (version 4.4; for AML Minos-X) software, then files containing the full cast information were saved to the raw AML format (.csv) and downcast portions were saved to the CARIS SVP (.svp) format. Process_Date: 202206 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Brian Andrews Contact_Position: Geographer 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 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: PROCESSING STEP 2: SOUND VELOCITY PROFILE PROCESSING AND EXPORT FROM QIMERA. Sound Velocity profiles for each day were imported and converted to Qimera (version 2.5.0) format using the Source/import/Caris svp menu. Each profile was reviewed for positional accuracy and erroneous depth/sound velocity values using the SVP editor. Incorrect records near the surface or within the water column were flagged using the "reject selection" context menu. Edited SVP data were exported from Qimera using the Export/svp/export to CARIS SVP option, resulting in one svp text file that included all 46 svp casts. Process_Date: 20221204 Source_Produced_Citation_Abbreviation: 2022-001-FA_SVP_QimeraExport.svp Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Brian Andrews Contact_Position: Geographer 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 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: PROCESSSING STEP 3: CREATE SVP PROFILE TEXT FILES, PNG IMAGES, AND POINT NAVIGATION FEATURE CLASS. A python Jupyter notebook was used to read the single svp file exported from Qimera, split it by profile, and write out a CARIS SVP format file for each profile. A second python Jupyter notebook utilized the python modules pandas (version 1.5.2), geopandas (version 0.12.1), shapely (version 1.8.5.post1), matplotlib (version 3.6.2), and sqlite3 (version 3.40.0) to read the individual svp files and create a PNG plot for each, containing speed of sound (meter/second) on the x-axis and depth (meters) on the y-axis. Position, Date, Time, and Profile ID were extracted from the SVP header line and written into the image as a title line for reference. The image files were named based on the date and time each sound velocity cast was collected. The latitude and longitude position, Cast ID, and Date/UTC time information for each cast, along with fields containing the Survey ID, Device ID, and Vehicle ID were appended as rows by profile to a Pandas dataframe during processing. After all profiles were processed, geopandas and shapely were used to create a point geometry column from the geographic station coordinates and the composite dataframe was imported to a geospatial SQLite database table using the pyspatialite interface. Finally, the svp location SQLite database table was imported to QGIS (version 3.26) as a point feature layer and exported (Right click on database feature class > Data > Save Features As) to the ESRI point shapefile 2022-001-FA_SVP_data.shp. Process_Date: 20221203 Source_Produced_Citation_Abbreviation: SVP profile PNG images, SVP text files, and point shapefile Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Wayne E. Baldwin 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 Contact_Voice_Telephone: (508) 548-8700 x2226 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: wbaldwin@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: point Point_and_Vector_Object_Count: 46 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 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: 2022-001-FA_SVP_data.shp Entity_Type_Definition: Sound velocity profile locations collected in Nantucket Sound Massachusetts in the vicinity of Horseshoe Shoal, during USGS Field Activity 2022-001-FA (46 point features). 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: -70.482500 Range_Domain_Maximum: -70.271389 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: 41.497500 Range_Domain_Maximum: 41.572222 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: 2022-001-FA_SV2022-06-12_13-54-10 "FAN_SVyyyy-mm-dd_hh-mm-ss", where 'FAN' indicate the WHCMSC field activity number, 'SV' indicates sound velocity cast, 'yyyy' indicates the year, 'mm' indicates the month, 'dd' indicates the day, and 'hh-mm-ss' indicates the UTC time of the cast. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Character set Attribute: Attribute_Label: SVPImage Attribute_Definition: Name of sound velocity profile image used to distinguish between casts. Profile names are in the format: 2022-001-FA_SV2022-06-12_13-54-10 "FAN_SVyyyy-mm-dd_hh-mm-ss", where 'FAN' indicate the WHCMSC field activity number, 'SV' indicates sound velocity cast, 'yyyy' indicates the year, 'mm' indicates the month, 'dd' indicates the day, and 'hh-mm-ss' indicates the UTC time of the cast. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Character set Attribute: Attribute_Label: Date Attribute_Definition: Year-Month-Day 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:SS; 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. "2022-001-FA" where 2022 is the survey year, 001 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 Detailed_Description: Entity_Type: Entity_Type_Label: 2022-001-FA_SVP_Images Entity_Type_Definition: Portable network graphic images of sound velocity profile data for survey 2022-001-FA (46 PNG files) Entity_Type_Definition_Source: U.S. Geological Survey Detailed_Description: Entity_Type: Entity_Type_Label: 2019-002-FA_SVP_Text Entity_Type_Definition: Sound velocity profile data in CARIS SVP ASCII format for survey 2022-001-FA (46 SVP files) Entity_Type_Definition_Source: U.S. Geological Survey Overview_Description: Entity_and_Attribute_Overview: The PNG images can be hyperlinked to their shapefile point locations in ArcGIS using the field called SVPImage. 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). UTC times in the file svp file names contain seconds values times in the svp header lines all contain seconds values of zero. 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 Address: Denver Federal Center Address: Building 810 Address: 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: Sound velocity profile data collected in Nantucket Sound Massachusetts in the vicinity of Horseshoe Shoal, during USGS Field Activity 2022-001-FA using AML-3 LGR or AML Minos-X CTDSV sensors: includes the shapefile 2022-001-FA_SVP_data.shp, 46 PNG images representing all sound speed profiles graphically 2022-001-FA_SVP_Images.zip), 46 svp ASCII files that represent all sound speed profile data (2022-001-FA_SVPText.zip), a browse graphic 2022-001-FA_SVP_data_browse.jpg) and a Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata file (2022-001-FA_SVP_data_meta.xml). Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. 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 materials. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), and have been processed successfully on a computer system at the 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. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: QGIS 3.24.3 Format_Specification: Shapefile Format_Information_Content: Shapefile of sound velocity profile data cast locations collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center during USGS Field Activity 2022-001-FA and the associated metadata. File_Decompression_Technique: 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://www.sciencebase.gov/catalog/item/63eba5fcd34efa0476af1fa5 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/63eba5fcd34efa0476af1fa5 Network_Resource_Name: https://doi.org/10.5066/P9O5G5OT Access_Instructions: The first link is to the page containing the data, the second link downloads all data available from the page as a zip file, and the third link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PNG Format_Version_Number: Matplotlib 3.6.2 Format_Specification: Portable Network Graphic (PNG) Format_Information_Content: The zip file contains images of sound speed profile data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center in Nantucket Sound Massachusetts during USGS Field Activity 2022-001-FA and the associated metadata. File_Decompression_Technique: Use any zip decompression utility (e.g. 7zip, Keka, WinZip) Transfer_Size: 2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/63eba5fcd34efa0476af1fa5 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/63eba5fcd34efa0476af1fa5 Network_Resource_Name: https://doi.org/10.5066/P9O5G5OT Access_Instructions: The first link is to the page containing the data, the second link downloads all data available from the page as a zip file, and the third link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: SVP Format_Version_Number: 2.0 Format_Specification: CARIS ASCII sound velocity profile format (SVP) Format_Information_Content: The zip file contains CARIS SVP text files of sound speed profile data collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center in Nantucket Sound Massachusetts during USGS Field Activity 2022-001-FA and the associated metadata. File_Decompression_Technique: Use any zip decompression utility (e.g. 7zip, Keka, WinZip) Transfer_Size: 0.03 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/63eba5fcd34efa0476af1fa5 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/63eba5fcd34efa0476af1fa5 Network_Resource_Name: https://doi.org/10.5066/P9O5G5OT Access_Instructions: The first link is to the page containing the data, the second link downloads all data available from the page as a zip file, and the third link is to the publication landing page. Fees: none Technical_Prerequisites: This publication 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: 20230309 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Brian Andrews Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2348 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 person is no longer with the USGS. Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time