Metadata: Identification_Information: Citation: Citation_Information: Originator: Page C. Valentine Publication_Date: 2021 Title: Video transects of the sea floor on Stellwagen Bank during U.S. Geological Survey field activity 2015-074-FA, aboard the R/V Auk, December 1, 2015 Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital dataset (polyline) Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9XPFQ63 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/P9XPFQ63 Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2015-074-FA/ Larger_Work_Citation: Citation_Information: Originator: Page C. Valentine Originator: VeeAnn A. Cross Publication_Date: 2021 Title: Station Information, Seabed Imagery, and CTD Instrument Data Collected on Stellwagen Bank in December 2015, U.S. Geological Survey Field Activity 2015-074-FA Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9XPFQ63 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Valentine, P.C., and Cross, V.A., 2021, Station information, seabed imagery, and CTD instrument data collected on Stellwagen Bank in December 2015, U.S. Geological Survey Field Activity 2015-074-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9XPFQ63 . Online_Linkage: https://doi.org/10.5066/P9XPFQ63 Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2015-074-FA/ Description: Abstract: This field activity is 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. This cruise 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 21 locations on Stellwagen Bank at which 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. Purpose: These video tracklines indicate where imagery data of the sea floor were collected. This information will be used in making the seabed geologic map. Supplemental_Information: Additional information regarding the field activity can be obtained from https://cmgds.marine.usgs.gov/fan_info.php?fan=2015-074-FA . The grain-size analyses of the sediment samples collected during this field activity are available in a separate publication (Valentine and Cross, 2019; link available from the cross-reference citation). Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20151201 Currentness_Reference: Ground condition when data were collected. There was one day of data collection. December 1, 2015. Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.279160 East_Bounding_Coordinate: -70.238980 North_Bounding_Coordinate: 42.196670 South_Bounding_Coordinate: 42.175860 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:c91ea6df-2008-4ba1-844b-a2d71e057a78 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: SEABed Observation and Sampling System Theme_Keyword: SEABOSS Theme_Keyword: stations Theme_Keyword: navigation Theme_Keyword: video Theme_Keyword: trackline Theme_Keyword: polyline shapefile Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: videos Theme_Keyword: navigational data Theme_Keyword: marine geology Theme_Keyword: videography Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: video observation 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: pvalentine@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2015-074-FA/data/imagery/2015-074-FA_video_driftlines_browse.jpg Browse_Graphic_File_Description: Browse graphic showing the video drift lines. 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: Page C. Valentine Originator: VeeAnn 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 sediment sample analyses information associated with this field activity and 19 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: Each record within the shapefile has the same fields and the attribute values were derived in the same manner. Completeness_Report: This dataset represents the video trackline information for every video drift obtained during this cruise. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The location information for stations was acquired from a satellite navigation receiver (Furuno satellite compass SC-30 GPS receiver) at two-second intervals with a horizontal accuracy of 10 meters. The navigation antenna is located 5.3 meters forward of the SEABed Observation and Sampling System (SEABOSS) deployment location. This offset was not accounted for in the navigation acquisition (navigation fixes represent antenna location). The SEABOSS may also drift away from the survey vessel when deployed to the sea floor. Lineage: Process_Step: Process_Description: Seabed videos were collected using two battery-operated, high-definition (1920 x 1080 pixels) GoPro Hero 4 Black digital video cameras mounted on the SEABOSS. See the cross-references for additional description of the SEABOSS system. The SEABOSS system had two GoPro cameras and a SeaViewer 6000 HD Sea-Drop video camera attached to it. 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. One of the GoPro cameras was the primary video acquisition camera and in case of camera failure, the additional cameras provided backup video. As the SEABOSS drifted over the seabed, the GoPro 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 kelvin. Two parallel red lasers mounted 20 centimeters apart provided a scale in the video images. Video imagery includes the launch and recovery of the SEABOSS, transit through the water column, and the drift over the seabed. The duration of individual video files ranges from approximately 3 to 7 minutes. Video files are archived in .MP4 format and range in size from 0.7 to 1.6 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. The position (latitude and longitude) and time were recorded from the navigation receiver by hand in the log book when the SEABOSS reached the seabed and when it left the seabed. Latitude and longitude positions recorded by hand in the log book were later adjusted to match the data recorded in the GPS navigation file based on time. Video was recorded during the descent through the water column (1-2 minutes), during the drift over the seabed, and during the ascent. Process_Date: 2015 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: The original raw $GPGGA navigation was run through an AWK script (awkauk.gpgga2days_fixrnd, on a machine running Cygwin - www.cygwin.com) to reformat the latitudes and longitudes into decimal degrees and output the data into a comma-delimited text file with the following columns of information: latitude (decimal degrees out to five decimal places), longitude (decimal degrees out to five decimal places), hour, minute, second, Julian day, and year. The Julian day was determined by the original date in the filename of the navigation file as the GPGGA string does not contain any date information. The script made sure to round the latitude and longitude values to five decimal places in the same way that Excel would round the values. The AWK script also made sure that there were no duplicate records in terms of time, such as two navigation points recorded at 16:38:23. Depending on the boat drift rate, navigation fixes carried out to only five decimal places could have duplicate fixes. The individual navigation files were concatenated into a single file in order of acquisition. This process step and the remaining process steps were performed by the same person, VeeAnn A. Cross. Process_Date: 2020 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: Another AWK script (awkdrift_pullstartend) was run on the stations summary CSV file to extract the following columns of information: station, Julian day of video start, Coordianted Universal Time (UTC) time of video start, Julian day of video end, UTC time of video end, and year. Process_Date: 2020 Process_Step: Process_Description: A Python script (driftlog_gui_v5.py) run from Python IDLE version 2.7.14 on Windows 10 was used to extract all the navigation points from the navigation file based on the start and end time of the video drift and combine these into polylines. Ideally, there is a match of the same time (with a corresponding navigation fix) in the GPS file to the start and end video times recorded in the log book. However, if this situation does not exist, then the closest (in time) navigation record to the start and end time of the video transect is used, along with all the navigation points in between those two times. These extracted points were then combined into a polyline shapefile. The resulting shapefile has a polyline for every video drift. Based on the navigation system, the coordinate system of the dataset was set to geographic coordinates, WGS 84. Process_Date: 2020 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 21 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: Detailed_Description: Entity_Type: Entity_Type_Label: 2015-074-FA_video_driftlines.shp Entity_Type_Definition: polyline shapefile of video drift transects Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: ID Attribute_Definition: Unique identifier for each record in the polyline shapefile. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 20 Attribute: Attribute_Label: Survey Attribute_Definition: Name or number of cruise on which sample collected. The cruise identifier is in the format YYYY-XXX-FA where YYYY is the survey year, XXX is the survey number of that year, and FA is Field Activity. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Station Attribute_Definition: Sample or station name or number as assigned in the field by the Chief Scientist. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Character set. Although numeric, stations could have a decimal number indicating a reoccupation of a station. Attribute: Attribute_Label: Year Attribute_Definition: Year the station was occupied. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2015 Range_Domain_Maximum: 2015 Attribute: Attribute_Label: JD Attribute_Definition: Julian day of the video drift based on the date in UTC time at the deployment of the SEABOSS. Julian day is the integer number 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: Range_Domain: Range_Domain_Minimum: 335 Range_Domain_Maximum: 335 Attribute: Attribute_Label: LineStart Attribute_Definition: Start time of the video drift when the SEABOSS reached the seabed as recorded in the log book, in UTC time in the format HH:MM:SS. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Number represented as a text field. Attribute: Attribute_Label: LineEnd Attribute_Definition: End time of the video drift when the SEABOSS left the seabed as recorded in the log book, in UTC time in the format HH:MM:SS. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Number represented as a text field. Attribute: Attribute_Label: GPSStart Attribute_Definition: Time in the GPS navigation file that is closest to the start time of the video drift as recorded in the log book. UTC time in the format HH:MM:SS. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Number represented as a text field. Attribute: Attribute_Label: GPSEnd Attribute_Definition: Time in the GPS navigation file that is closest to the end time of the video drift as recorded in the log book. UTC time in the format HH:MM:SS. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Number represented as a text field. Distribution_Information: Distributor: 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 Resource_Description: 2015-074-FA_video_driftlines.zip contains the video drift lines shapefile (2015-074-FA_video_driftlines.shp and other files associated with a shapefile). The ZIP file also contains the browse graphic (2015-074-FA_video_driftlines_browse.jpg) and FGDC CSDGM metadata in XML format. Distribution_Liability: Although these data have been processed successfully on a computer system at 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. 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. 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. Any use of trade, product, or firm 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: ArcGIS 10.6.1 Format_Information_Content: The ZIP file contains the video drift transects polyline shapefile, browse graphic, and FGDC CSDGM metadata. Transfer_Size: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2015-074-FA/data/imagery/2015-074-FA_video_driftlines.zip Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2015-074-FA/ Network_Resource_Name: https://doi.org/10.5066/P9XPFQ63 Access_Instructions: The first link is to download the data in a ZIP file. The second and third links, the latter of which is the DOI designation of the publication, both go to the landing page of the data. Fees: none Technical_Prerequisites: The ZIP file contains data in Esri shapefile format. The user must have software capable of uncompressing the ZIP file and reading the data format. Metadata_Reference_Information: Metadata_Date: 20240318 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 USGS. (updated on 20240318) Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998