Metadata: Identification_Information: Citation: Citation_Information: Originator: Page C. Valentine Publication_Date: 20220510 Title: Seabed still images in JPEG format with EXIF location information collected by the U.S. Geological Survey on Stellwagen Bank during six surveys aboard the R/V Auk, May 2016 to April 2019 Edition: 1.0 Geospatial_Data_Presentation_Form: raster Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9ERNGJ2 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program Online_Linkage: https://doi.org/10.5066/P9ERNGJ2 Online_Linkage: https://sciencebase.gov/catalog/item/620d4fa1d34e6c7e83ba9aca Larger_Work_Citation: Citation_Information: Originator: Page C. Valentine Originator: VeeAnn A. Cross Publication_Date: 2022 Title: Station Information, Seabed and Sample Imagery, and CTD Instrument Data Collected on Stellwagen Bank from May 2016 to April 2019 Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9ERNGJ2 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Valentine, P.C., and Cross, V.A., 2022, Station information, seabed and sample imagery, and CTD instrument data collected on Stellwagen Bank from May 2016 to April 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9ERNGJ2 . Online_Linkage: https://doi.org/10.5066/P9ERNGJ2 Online_Linkage: https://sciencebase.gov/catalog/item/620d39c1d34e6c7e83ba9a4b Description: Abstract: These data are a part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics. The work was conducted in collaboration with the Stellwagen Bank National Marine Sanctuary, and the data collected will aid research on the ecology of fish and invertebrate species that inhabit the region. The Sanctuary's research vessel, R/V Auk, visited a total of 233 locations on Stellwagen Bank during six separate surveys from May 2016 to April 2019. During these surveys a customized Van Veen grab sampler (SEABOSS) equipped with a video camera and a CTD was deployed in drift mode to collect sediment for grain-size analysis, video imagery of the seabed, and measurements of water column properties including temperature, salinity, density, and fluorescence. Purpose: To provide images of the sea floor acquired with the SEABed Observation and Sampling System (SEABOSS). These data provide ground-truth information for geophysical datasets and are used in seabed interpretations. Supplemental_Information: The locations of image can be extracted from the EXIF header of the images (described in the process steps). Alternatively, the image locations are available from the 2016-2019_station_data_summary dataset available from the Larger Work citation. Additional information regarding the field activities associated with these data can be obtained from the following locations https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-012-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-039-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-027-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-028-FA, https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-029-FA, and https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-007-FA . The grain-size analyses of the sediment samples collected during these field activities is available in a separate publication (Valentine and Cross, 2019; link available from the cross-reference citation). Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20160518 Ending_Date: 20190430 Currentness_Reference: Ground condition of when data were collected. These data were collected during six separate surveys, with the following ranges of dates for each survey: field activity 2016-012-FA: 20160518 to 20160520; field activity 2016-039-FA: 20161027; field activity 2018-027-FA: 20180521 to 20180523; field activity 2018-028-FA: 20180718 to 20180720; field activity 2018-029-FA: 20181109 and 20181130; and field activity 2019-007-FA: 20190425 to 20190430. Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.498460 East_Bounding_Coordinate: -70.134620 North_Bounding_Coordinate: 42.448060 South_Bounding_Coordinate: 42.145020 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: National Oceanic and Atmospheric Administration Theme_Keyword: NOAA Theme_Keyword: ground-truth Theme_Keyword: seabed images Theme_Keyword: JPEG Theme_Keyword: SEABed Observation and Sampling System Theme_Keyword: SEABOSS Theme_Keyword: video image grab 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: marine geology Theme_Keyword: image collections Theme_Keyword: underwater photography Theme_Keyword: sea-floor characteristics Theme_Keyword: field monitoring stations Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: photographic sampling Theme_Keyword: seabed Theme_Keyword: marine geology Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:620d4fa1d34e6c7e83ba9aca Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: United States Place_Keyword: Massachusetts Place_Keyword: Atlantic Ocean Place_Keyword: Stellwagen Bank Place_Keyword: Stellwagen Bank National Marine Sanctuary Place_Keyword: SBNMS Place_Keyword: Massachusetts Bay Access_Constraints: None. Use_Constraints: None. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Page C. Valentine Contact_Position: Research 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 x2239 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The contact email address is a generic address in the event the person is no longer with the USGS. Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/620d4fa1d34e6c7e83ba9aca?name=seabed_image_browse.jpg Browse_Graphic_File_Description: Browse graphic of an example seabed still image on Stellwagen Bank. Browse_Graphic_File_Type: JPEG Cross_Reference: Citation_Information: Originator: D.S. Blackwood Originator: K.F. Parolski Publication_Date: 2001 Title: Seabed observation and sampling system Series_Information: Series_Name: Sea Technology Issue_Identification: v. 42, no. 2, p. 39-43 Cross_Reference: Citation_Information: Originator: P. Valentine Originator: D. Blackwood Originator: K. Parolski Publication_Date: 2000 Title: Seabed observation and sampling system Series_Information: Series_Name: U.S. Geological Survey Fact Sheet Issue_Identification: FS-142-00 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/fs14200 Online_Linkage: https://pubs.usgs.gov/fs/fs142-00/ Cross_Reference: Citation_Information: Originator: P.C. Valentine Originator: V.A. Cross Publication_Date: 2019 Title: Location and analyses of sediment samples collected on Stellwagen Bank off Boston, Massachusetts from November 5, 2013 to April 30, 2019 on U.S. Geological Survey field activities Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9FWFLPD Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: This publication includes the grain-size analyses of the sediment samples collected on these six field activities as well as 14 other field activities. Online_Linkage: https://doi.org/10.5066/P9FWFLPD Online_Linkage: https://www.sciencebase.gov/catalog/item/5d95153ee4b0c4f70d10a4f7 Data_Quality_Information: Logical_Consistency_Report: The image names are in the format staXXXX_Y.jpg where XXXX is the station number and Y is the image number at that station. Each station has two images - one showing a broader view of the landscape (Y=1) and the second a close-up of the seabed (Y=2). The difference in view is related to the closeness of the SEABOSS to the seafloor. See the cross-references for a description of the SEABOSS (Blackwood and Parolski, 2001; Valentine and others, 2000). The two images from a station are not from the same geographic location on the video drift, but the coordinates stored in the EXIF header information in each station's images are the same. This is because the source video imagery did not display time. The latitude and longitude of the two images are based on the station location time recorded in the cruise logbook (the location of a sediment sample, or if no sample was collected, the video drift end location). The latitude and longitude of stations recorded in the log book were later adjusted to match the latitude and longitude recorded at that time in the GPS navigation file. The 2016-2019_station_data_summary dataset (available from the Larger Work citation) station locations are the same as the image locations at each station. All the field activities took place on the Stellwagen Bank National Marine Sanctuary's research vessel, R/V Auk. Although these data represent six separate field activities, the set-up and acquisition on all the cruises is consistent with the exception of the navigation - which was sometimes acquired at 1-second intervals and sometimes at 2-second intervals. Completeness_Report: Each station has two images - one showing a broader view of the landscape and the second a close-up of the seabed that was recorded when sampling was attempted. In some images from shallow depths, ambient daylight is the dominant light source and causes the images to have a “greenish” coloration. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Although the images do not represent spatial data, the spatial information is available in the EXIF header of each image, which is derived from the station location in the station data summary dataset (available from the Larger Work citation). The location information for stations was acquired from a satellite navigation receiver (Furuno Satellite Compass SC-30, GPS receiver) in geographic coordinates (World Geodetic System of 1984 [WGS 84]) with a horizontal accuracy of 10 m. For two cruises (2018-027-FA and 2019-007-FA) the navigation was acquired at one-second intervals. Four cruises (2016-012-FA, 2016-039-FA, 2018-028-FA, and 2018-029-FA) acquired navigation at a two-second interval. The navigation antenna was located 5.3 m forward of the SEABOSS deployment location. This offset was not accounted for in the navigation acquisition, so navigation fixes represent the antenna location. The SEABOSS may also drift away from the survey vessel when deployed to the sea floor. Lineage: Process_Step: Process_Description: Seabed video imagery was collected using two battery-operated, high-definition (1920 x 1080 pixels) GoPro digital video cameras and a Seaviewer high-definition (1920 x 720 pixels) digital camera mounted on SEABOSS. The SeaViewer camera had a live feed to the surface and was used only to observe obstacles, like gill nets and lobster gear, in order to avoid entanglement. In the case of camera failure, the additional cameras provided backup video. All images collected here were acquired with a GoPro camera. As the SEABOSS drifted over the seabed, the cameras imaged the seabed at a rate of 60 frames per second from an altitude of ~1 meter. Lighting was provided by two battery-operated Keldan LED video lights. Each light provided a light flux of up to 9000 lumens at a correlated color temperature of 5000 kelvins. Two parallel red lasers mounted 20 centimeters apart provided a scale in the video images. Video imagery includes the launch of the SEABOSS, transit through the water column, and the drift over the seabed. The duration of 233 individual video files ranges from 3.5 to 17.75 minutes. Video files are archived in .MP4 format and range in size from 0.8 to 3.9 gigabytes. These video files are not part of this data release. Video files are archived at the USGS Woods Hole Coastal and Marine Science Center, 384 Woods Hole Road, Woods Hole, MA 02543. Data were collected from 2016 to 2019 with the process date representing the most recent acquisition year. Process_Date: 2019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Page C. Valentine Contact_Position: Research 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 x2239 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: pvalentine@usgs.gov Process_Step: Process_Description: Video frame-grab images were extracted from high-definition (1920 x 1080 pixels) GoPro digital video using open source VLC Media Player software (version 2.0.0) developed by the VideoLAN project ( http://www.videolan.org/vlc/index.html ). Two video frame-grab images are provided for each station. One image (staXXXX_1) shows a broad view of the landscape as the SEABOSS drifted over the seabed. The second image (staXXXX_2) shows a close-up of the seabed as the SEABOSS was stationary during the collection of the sediment sample. Where visible, the two parallel red lasers mounted 20 cm apart provide a scale. Data were collected from 2016 to 2019 with the process date representing the most recent acquisition year. Process_Date: 2019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Page C. Valentine Contact_Position: Research 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 x2239 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: pvalentine@usgs.gov Process_Step: Process_Description: Using the station data summary CSV file for each field activity, the approximate time and location of each photo during that field activity was derived. The location (latitude and longitude), date, and time for each station was extracted from the CSV file. This information was reformatted using an AWK script so that the following columns of information were available: image name (based on the station number), latitude, longitude, GPS time (in the format HH:MM:SS), and GPS date (in the format YYYYMMDD). This information was written to a new CSV file. This process was repeated for each of the six field activities. Source_Used_Citation_Abbreviation: *-FA_station_data_summary.csv Process_Date: 2021 Source_Produced_Citation_Abbreviation: *-FA_seabedimage_locations.csv 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: A Python notebook (EXIF_headers.ipynb) was run that incorporated the information from an individual field activity image locations file *-FA_seabedimage_locations.csv where the * represents the field activity number) along with additional information into the appropriate tags in the EXIF header of each seabed image. Although the two images from each station are not from the exact same place, the same location information was populated in each station's photos. Then the IPython Notebook (using Python version 3.8.8) was executed from a Jupyter Notebook (version 6.3.0) running under Anaconda version 3 on a Windows 10 machine. The Python script uses ExifTool (version 11.54) to write survey information to the image headers of the full-resolution images. The following tags were populated in the JPEG image headers. Information is duplicated in some tags because different software packages access different tags. GPS tags: The values populated are unique for each station image and based on the information exported from *-FA_station_data_summary.csv to the *-FA_seabedimage_location.csv. >GPSLatitudeRef >GPSLatitude >GPSLongitudeRef >GPSLongitude >GPSTimeStamp >GPSDateStamp > Two other elements that are unique for each image (and will actually have the same value) are the XMP tags for the original filename. >OriginalFileName >PreservedFileName > JPEG tag: The tag is listed along with the information used to populate it, which is the same for every image of a given field activity. The example below is from field activity 2016-012-FA. The DOI number is the same for all the field activities and represents this data release. > >Comment: Video frame grab image from a GoPro digital video camera mounted on the USGS SEABOSS deployed from the R/V Auk during survey 2016-012-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-012-FA) . > EXIF tags: The tag is listed along with the information used to populate it, which is the same for every image. > >ImageDescription: https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-012-FA; Video frame grab image from a GoPro digital video camera on Stellwagen Bank, MA from survey 2016-012-FA >Artist: Page C. Valentine >Copyright: Public Domain - please credit U.S. Geological Survey >UserComment: Image part of USGS data release https://doi.org/10.5066/P9ERNGJ2 >Make: GoPro >GPSAreaInformation: Position post-processed from GPS on ship >GPSMapDatum: EPSG:4326 (WGS 84) > IPTC tags: The tag is listed along with the information used to populate it, which is the same for every image. > >Credit: U.S. Geological Survey >Contact: whsc_data_contact@usgs.gov >Keywords: Stellwagen Bank, Massachusetts, 2016-012-FA, SEABOSS, sea floor, USGS, ground-truth, https://doi.org/10.5066/P9ERNGJ2 >CopyrightNotice: Public Domain - please credit U.S. Geological Survey >Caption-Abstract: Video frame grab image of the sea floor on Stellwagen Bank, MA from survey 2016-012-FA > XMP tags: The tag is listed along with the information used to populate it, which is the same for every image of a given field activity. Three tags described elsewhere (ImageUniqueID, OriginalFileName, and PreservedFileName), are unique for each image. > >Caption: Video frame grab image of the sea floor on Stellwagen Bank, MA from survey 2016-012-FA >AttributionURL: https://doi.org/10.5066/P9ERNGJ2 >Author: Page C. Valentine >UsageTerms: 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. > Another script run in Python Notebooks (Image_PIDwork.ipnb) was used to mint a unique persistent identifier (image PID) for each image and placed in the header. Additionally, the persistent URL for the metadata record associated with this dataset was also inserted into the image header. > XMP tag: > >ImageUniqueID: unique for each image >ExternalMetadataLink: https://www1.usgs.gov/pir/api/identifiers/620d4fa1d34e6c7e83ba9aca > From the command-line in Cygwin, the image name was also added to the header with the following command: exiftool -P "-originalfilename From the command-line in Cygwin, the image name was also added to another element in the header with the following command: exiftool.exe -P "-XMP:PreservedFileName Finally, another command run from the command line in order to duplicate information to appropriate XMP headers: exiftool -P "-XMP-photoshop:Credit To extract the information (except for OriginalFileName, PreservedFileName, and the duplicated tags) from the image headers using ExifTool, the following example command can be used (tested with ExifTool version 11.54, slight modifications of the command might be necessary depending on the operating system of the user): > exiftool.exe -csv -f -filename -GPSTimeStamp -GPSDateStamp -GPSLongitude -GPSLatitude -n -GPSAreaInformation -GPSMapDatum -ImageDescription -Artist -Credit -comment -contact -keywords -Caption -Copyright -CopyrightNotice -Caption-Abstract -UserComment -AttributionURL -UsageTerms -Author -ImageUniqueID -ExternalMetadataLink *.jpg > out.csv > The -csv option writes the information out in a comma-delimited format. The -n option formats the latitude and longitude as signed decimal degrees. Whether you use exiftool or exiftool.exe will depend on the system on which the command is being run. Source_Used_Citation_Abbreviation: *.JPG Process_Date: 2021 Source_Produced_Citation_Abbreviation: *.jpg 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: Indirect_Spatial_Reference: The location information for the images is available in the EXIF headers of the images and is also indicated by the station locations in the station data summary dataset (available from the Larger Work citation). Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 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: Overview_Description: Entity_and_Attribute_Overview: Although the images do not have attributes per se, the EXIF header information can be extracted or viewed to give additional information about each image. The last process step explains how to extract the information from the image header, and is replicated here. To extract the information from the image headers using ExifTool, the following command can be used (tested with ExifTool version 11.54): > exiftool.exe -csv -f -filename -GPSTimeStamp -GPSDateStamp -GPSLongitude -GPSLatitude -n -GPSAreaInformation -GPSMapDatum -ImageDescription -Artist -Credit -comment -contact -keywords -Caption -Copyright -CopyrightNotice -Caption-Abstract -UserComment -AttributionURL -UsageTerms -Author -ImageUniqueID -ExternalMetadataLink *.jpg > out.csv > The -csv option writes the information out in a comma-delimited format. The -n option formats the latitude and longitude as signed decimal degrees. Whether you use exiftool or exiftool.exe will depend on the operating system on which the command is being run. 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, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: The dataset contains the following six ZIP files of video frame grab images of the seabed from six field activities, two images at each station: 2016-012-FA_seabedimages.zip contains 112 JPEG images; 2016-039-FA_seabedimages.zip contains 14 JPEG images; 2018-027-FA_seabedimages.zip contains 102 JPEG images; 2018-028-FA_seabedimages.zip contains 96 JPEG images; 2018-029-FA_seabedimages.zip contains 42 JPEG images; and 2019-007-FA_seabedimages.zip contains 100 JPEG images. The dataset contains a total of 466 JPEG images. The dataset also contains the browse graphic (seabed_image_browse.jpg) and the FGDC CSDGM metadata in XML format. 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: JPEG Format_Information_Content: The dataset contains JPEG image files, the browse graphic, and the associated FGDC CSDGM metadata. Transfer_Size: 273 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/620d4fa1d34e6c7e83ba9aca Network_Resource_Name: https://www.sciencebase.gov/catalog/item/620d4fa1d34e6c7e83ba9aca Network_Resource_Name: https://doi.org/10.5066/P9ERNGJ2 Access_Instructions: The first link is to download all the data in a ZIP file. The second link is to the landing page of the data where individual files can be downloaded. The third link is to the main landing page of the publication. Fees: none Technical_Prerequisites: The ZIP file contains images in JPEG format. The user must have software capable of uncompressing the ZIP file and viewing the JPEG images. Metadata_Reference_Information: Metadata_Date: 20220510 Metadata_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 Address: 384 Woods Hole Rd. 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: 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: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998