Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2018 Title: Location of bottom video tracklines collected during field activity 2012-035-FA by the U.S. Geological Survey and Massachusetts Office of Coastal Zone Management in Ipswich Bay and Massachusetts Bay, Massachusetts, in August 2012 (polyline shapefile) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P924M8R1 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.5066/P924M8R1 Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2012-035-FA/ Larger_Work_Citation: Citation_Information: Originator: Emily C. Huntley Originator: Seth D. Ackerman Originator: Robert L. Boeri Originator: Todd P. Callaghan Originator: Daniel W. Sampson Originator: Dann S. Blackwood Publication_Date: 2018 Title: Sampling data collected in Ipswich Bay and Massachusetts Bay, Massachusetts, in 2012, U.S. Geological Survey Field Activity 2012-035-FA Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P924M8R1 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Huntley, E.C., Ackerman, S.D., Boeri, R.L., Callaghan, T.P., Sampson, D.W., and Blackwood, D.S., 2018, Sampling data collected in Ipswich Bay and Massachusetts Bay, Massachusetts, in 2012, U.S. Geological Survey Field Activity 2012-035-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P924M8R1. Online_Linkage: https://doi.org/10.5066/P924M8R1 Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2012-035-FA/ Description: Abstract: Accurate data and maps of sea-floor geology are important first steps toward protecting habitat, delineating marine resources, and assessing environmental changes due to natural or human effects. Initiated in 2003, the primary objective of the Geologic Mapping of the Massachusetts Sea Floor program is to develop regional geologic framework information for the management of coastal and marine resources. The program is focused on the inshore waters (primarily 5-30 meters deep, although the region surveyed in this field activity includes waters up to 90 meters deep) of Massachusetts. This dataset, collected aboard the Ocean Survey Vessel (OSV) Bold as part of the Geologic Mapping of the Massachusetts Sea Floor Program, is from U.S. Geological Survey (USGS) sampling survey 2012-035-FA (August 21-27, 2012) by the USGS Woods Hole Coastal and Marine Science Center and the Massachusetts Office of Coastal Zone Management with partners from the Massachusetts Bays Program, the Massachusetts Department of Environmental Protection, the Massachusetts Division of Marine Fisheries, and the U.S. Environmental Protection Agency. During the survey, surficial sediment samples and bottom still and video imagery were collected in Ipswich Bay and Massachusetts Bay, Massachusetts. Purpose: This dataset is used to display the locations of bottom videos acquired with a Kongsberg Simrad OE1365 video camera on the SEABed Observation and Sampling System (SEABOSS) collected during USGS survey 2012-035-FA. Video data serve as a means to visually classify grain size and are especially important for sites where no physical sediment sample was collected. Supplemental_Information: To view the bottom videos, see the Coastal and Marine Geology Program Video and Photograph Portal (Golden and others, 2015; link available from the cross-reference citation). Bottom still imagery was also taken at each station (see shapefile 2012-035-FA_photos.shp available from the larger work citation). Physical sediment samples were also collected at many stations and analyzed for grain size (see shapefile 2012-035-FA_samples.shp available from the larger work citation) and benthic infauna (see report by the Massachusetts Office of Coastal Zone Management [2013] available from the cross-reference citation). For more information about this field activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-035-FA. For more information about the Geologic Mapping of the Massachusetts Sea Floor program, see https://woodshole.er.usgs.gov/project-pages/coastal_mass/. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20120821 Ending_Date: 20120827 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.907133 East_Bounding_Coordinate: -70.498592 North_Bounding_Coordinate: 42.873397 South_Bounding_Coordinate: 42.296973 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:ca0d1525-b98d-47d6-87b6-71af6b2c8e87 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Massachusetts Office of Coastal Zone Management Theme_Keyword: MassCZM Theme_Keyword: MA CZM Theme_Keyword: CZM Theme_Keyword: ground-truth Theme_Keyword: bottom video Theme_Keyword: seabed video Theme_Keyword: videos Theme_Keyword: stations Theme_Keyword: seafloor Theme_Keyword: sea floor Theme_Keyword: marine geology Theme_Keyword: sediments Theme_Keyword: SEABOSS Theme_Keyword: SEABed Observation and Sampling System Theme_Keyword: Kongsberg Simrad OE1365 Theme_Keyword: shapefile Theme_Keyword: field activity 2012-035-FA Theme_Keyword: field activity number 12035 Theme_Keyword: OSV Bold Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: videography Theme_Keyword: video monitoring Theme_Keyword: navigational data Theme_Keyword: marine geology Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: marine geology Theme_Keyword: video observation Theme_Keyword: sediment analysis Theme_Keyword: bay Theme_Keyword: continental shelf Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: United States Place_Keyword: Atlantic Ocean Place_Keyword: Gulf of Maine Place_Keyword: Bigelow Bight Place_Keyword: Massachusetts Place_Keyword: Ipswich Bay Place_Keyword: Massachusetts Bay Place_Keyword: Cape Ann Place_Keyword: Plum Island Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: sea floor Stratum_Keyword: seafloor Stratum_Keyword: seabed Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2012 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/field-activity-data/2012-035-FA/data/imagery/2012-035-FA_videos_browse.jpg Browse_Graphic_File_Description: Thumbnail image of bottom video locations in Ipswich Bay and Massachusetts Bay, Massachusetts. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Cross_Reference: Citation_Information: Originator: Nadine E. Golden Originator: Seth D. Ackerman Originator: Evan T. Dailey Publication_Date: 2015 Title: Coastal and Marine Geology Program video and photograph portal Publication_Information: Publication_Place: Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://dx.doi.org/10.5066/F7JH3J7N Cross_Reference: Citation_Information: Originator: Massachusetts Office of Coastal Zone Management Publication_Date: 2013 Title: ENV13 CZM 01 Benthic Infaunal Analysis Report Publication_Information: Publication_Place: Boston, MA Publisher: Massachusetts Office of Coastal Zone Management Online_Linkage: https://www.mass.gov/files/documents/2016/08/ws/benthic-infauna-report-2012.pdf Cross_Reference: Citation_Information: Originator: D. Blackwood Originator: K. Parolski Publication_Date: 2001 Title: Seabed observation and sampling system Edition: 1.0 Series_Information: Series_Name: Sea Technology Issue_Identification: v. 42, no. 2, p. 39-43 Publication_Information: Publication_Place: Arlington, VA Publisher: Compass Publications, Inc. Data_Quality_Information: Logical_Consistency_Report: All bottom videos were acquired using a Kongsberg Simrad OE1365 video camera on the SEABOSS. The station numbers (FIELD_NO) were determined before the survey and are not necessarily in sequential order of when they were occupied. Gaps in sequential station numbers exist as not all planned stations were occupied during the survey. Two stations (stations 164 and 179) have two SEABOSS bottom video tracklines, so the tracklines were named "a" and "b" to indicate back-to-back deployments at the same station (e.g., line names 164a and 164b). The tracklines may self-intersect or self-overlap; at times the ship was moving so slowly that the resolution of the Differential Global Positioning System (DGPS) makes a trackline appear to double back on itself. Completeness_Report: Three hundred fifty stations were occupied within the study area. Two stations (stations 164 and 179) have two video tracklines from two deployments of the SEABOSS at the station, so the tracklines were named "a" and "b" to indicate back-to-back deployments at the same station (e.g., line names 164a and 164b). Some videos were clipped to the duration that the camera was within view of the sea floor. A total of 352 video tracklines are included in this dataset. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigation for survey 2012-035-FA used DGPS. The DGPS was set to receive fixes at a two-second interval in geographic coordinates (World Geodetic System of 1984 [WGS 84]). The recorded position of each point along the video trackline is the position of the DGPS antenna on the survey vessel, not the SEABOSS sampler. The antenna was mounted at the top of the vessel's A-frame from which the sampler was deployed, within a few meters of the sampler (+/- 3 meters). No layback or offset was applied to the recorded position. In addition to the +/- 3-meter offset, the sampler may drift away from the survey vessel when deployed to the sea floor. Based on the various sources of horizontal offsets, a conservative estimate of the horizontal accuracy of the video trackline locations is 10 meters. At times the ship was moving so slowly that the resolution of the DGPS makes a trackline appear to double back on itself. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished Material Title: Bottom video and navigation data Geospatial_Data_Presentation_Form: video and tabular digital data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20120821 Ending_Date: 20120827 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Bottom video and raw navigation files Source_Contribution: Bottom video was acquired using the InterOcean SEABOSS. The observations from video and still cameras and the sediment data are used to explore the nature of the sea floor and, in conjunction with high-resolution geophysical data, to make interpretive maps of sedimentary environments and validate acoustic remote sensing data. The InterOcean SEABOSS incorporates a downward-looking video camera (a Kongsberg Simrad OE1365 in this setup), a still camera, and a modified Van Veen sediment sampler. The elements of this particular SEABOSS system are held within a stainless-steel frame that measures 1.15 x 1.15 meters. The frame has a stabilizer fin that orients the system as it drifts over the seabed. The OSV Bold occupied one of the target stations and the SEABOSS was deployed off the vessel's A-frame on the stern of the ship. The vessel and sampler drifted with wind and current for up to a few minutes to ensure a decent image with a clear view of the sea floor and then at most stations the sea floor was sampled with the SEABOSS's integrated Van Veen grab. Sediment samples were only attempted in areas where collecting a sample would not damage the SEABOSS; therefore, no samples were collected in areas with a cobble, boulder, or rocky seabed, as identified in real time using the top-side live video feed. The system was then raised and recovered to the deck of the survey vessel. Bottom video was recorded from the Kongsberg Simrad OE1365 downward-looking video camera on Digital8 tapes and backup DVDs. DGPS navigation from a Garmin GPSMAP 76CSx receiver was logged through a Microsoft HyperTerminal (version 5.1) session on a Dell Latitude D820 laptop computer running Windows XP SP2 via serial cable and was also recorded to the audio channel of the video files. The DGPS was set to receive fixes at a two-second interval in geographic coordinates (WGS 84). Log files were saved approximately for each Julian day in ASCII text format. Process_Step: Process_Description: Three hundred fifty stations were occupied aboard the OSV Bold during USGS survey 2012-035-FA with the InterOcean SEABOSS (Blackwood and Parolski, 2001). The SEABOSS was equipped with a Van Veen grab sampler, a still camera, and a downward-looking Kongsberg Simrad OE1365 video camera. The OSV Bold occupied one of the target stations, the SEABOSS was deployed, and then the vessel and SEABOSS drifted with wind and current for up to a few minutes to ensure a decent video with a clear view of the sea floor. Bottom video was recorded from the Kongsberg Simrad OE1365 video camera on Digital8 tapes and backup DVDs. Process_Date: 201208 Source_Produced_Citation_Abbreviation: Bottom video 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: DGPS navigation from a Garmin GPSMAP 76CSx receiver was logged through a Microsoft HyperTerminal (version 5.1) session on a Dell Latitude D820 laptop computer running Windows XP SP2 via serial cable. The DGPS was set to receive fixes at a two-second interval in geographic coordinates (WGS 84). Log files were saved approximately for each Julian day in ASCII text format. Dates and times were recorded in Coordinated Universal Time (UTC). The original log files were reformatted into log files by full Julian day based on UTC time. An AWK script (awkseth.gprmc.12035.awk) was run on the log files to parse for the GPRMC navigation string and create ASCII Comma Separated Value (CSV) text files. The output files were merged and then reformatted using an AWK script (nav_time_reformat.awk), creating a final processed navigation file for the entire sampling survey. Source_Used_Citation_Abbreviation: Raw navigation files Process_Date: 201209 Source_Produced_Citation_Abbreviation: Processed two-second navigation file 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: Bottom video was originally recorded on Digital8 tapes and backup DVDs. Each tape was played back and imported to a separate iMovie project (version iMovie HD 6). Within iMovie, each individual SEABOSS deployment was separated as its own video clip. In order to batch export all of the clips for a particular iMovie project, a Perl script (parse_iMovie_XML_Mar2014.pl) was run to parse the iMovie XML project file and create a shell script (do_convert.sh). Each line of the shell script was a one-liner command to run the program FFmpeg (version 0.11) with video and audio codec parameters (libx264 and libfaac, respectively) and output a video file named by station number. The shell script was run for each iMovie project creating individual video clips for each station in the M4V file format. Source_Used_Citation_Abbreviation: Bottom video Process_Date: 201403 Source_Produced_Citation_Abbreviation: Bottom video clips 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: Since the DGPS was set to receive fixes at a two-second interval, a MATLAB script (latlon_dc_seth.m) was run to interpolate the navigation to get one-second fixes. Source_Used_Citation_Abbreviation: Processed two-second navigation file Process_Date: 201406 Source_Produced_Citation_Abbreviation: One-second navigation file 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: A drift log was created by parsing and reformatting the manually kept Microsoft Excel survey log for station number, start date and time in UTC, and end date and time in UTC for each video drift. The accuracy of the drift log was evaluated by comparing the manually entered start and end times to their companions extracted from the audio channel of the video files using the program Horax (version 0.1). Manually recorded times for some stations were replaced with more precise values obtained from the audio channel. The bottom video for four stations (stations 16, 88, 214, and 274) was not recorded on the Digital8 tapes but was available on backup DVDs in the VOB file format. The DVD videos have an overlay of the Global Positioning System (GPS) time, date, latitude, and longitude, as well as a user-input station number. The DVD videos for these four stations were viewed in VLC media player (version 2.2.4) to verify the start and end times as shown on the overlay. This process step and all subsequent process steps were performed by the same person, Emily Huntley. Source_Used_Citation_Abbreviation: Survey log Source_Used_Citation_Abbreviation: Bottom video clips Source_Used_Citation_Abbreviation: Backup bottom video DVDs Process_Date: 201707 Source_Produced_Citation_Abbreviation: Drift log Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Emily Huntley Contact_Organization: U.S. Geological Survey Contact_Position: Geographer/Database Specialist 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 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ehuntley@usgs.gov Process_Step: Process_Description: Navigation was not recorded by the Microsoft HyperTerminal session at station 77 due to a system malfunction. Instead, five fixes were extracted from the audio, which has the navigation embedded in it, of the video file for station 77. An additional known fix was identified based on the sediment sample site recorded in a log maintained by the U.S. Environmental Protection Agency during the survey. These known fixes were interpolated in Esri ArcGIS (version 10.3.1) to get one-second fixes. The Construct Points editing tool was used to create evenly spaced points along the line segments between the known fixes so that a point was created for each second. The coordinates of the points were calculated using the Calculate Geometry tool (Property=X Coordinate of Point and Y Coordinate of Point; Use coordinate system of the data source=WGS 1984; Unit=Decimal Degrees). The interpolated points were exported as a CSV file and added to the one-second navigation file. Source_Used_Citation_Abbreviation: Bottom video clips Source_Used_Citation_Abbreviation: EPA logbook Source_Used_Citation_Abbreviation: One-second navigation file Process_Date: 201710 Source_Produced_Citation_Abbreviation: Supplemented one-second navigation file Process_Step: Process_Description: A polyline shapefile was created by using a Python script (seaboss_trackline_creator_v1_1.py) to join the drift log with the one-second navigation file. The Python script reads the start and end times from the drift log, extracts the navigation points that fall within those start and end times, and then creates a polyline shapefile from the navigation points with a unique line for each video drift. Source_Used_Citation_Abbreviation: Drift log Source_Used_Citation_Abbreviation: Supplemented one-second navigation file Process_Date: 201710 Source_Produced_Citation_Abbreviation: Bottom video tracklines shapefile Process_Step: Process_Description: XTools Pro (version 12.0) for Esri ArcGIS (version 10.3.1) was used to rename, reorganize, and add new fields (Table Operations - Table Restructure) to the polyline shapefile, including an attribute for the trackline length in meters (LENGTH_M), date of collection (DATE), year of collection (YEAR), camera used (CAMERA), survey ID (CRUISE_ID), sampling device used to collect the video (DEVICE_ID), and survey vessel (VEHICLE_ID). The field calculator in Esri ArcGIS was used to calculate the date from the Julian day. The trackline length was calculated in Esri ArcGIS using the Calculate Geometry tool (Property=Length; Use coordinate system of the data frame=WGS 1984 UTM Zone 19N; Unit=Meters). Source_Used_Citation_Abbreviation: Bottom video tracklines shapefile Process_Date: 201710 Source_Produced_Citation_Abbreviation: Final bottom video tracklines shapefile Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200908 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: 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: 352 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00000001 Longitude_Resolution: 0.00000001 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: 2012-035-FA_videos Entity_Type_Definition: Locations of bottom video tracklines collected during USGS survey 2012-035-FA in Ipswich Bay and Massachusetts Bay, Massachusetts, in 2012. 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: FIELD_NO Attribute_Definition: Station number as assigned in the field. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish station numbers. Attribute: Attribute_Label: LINENAME Attribute_Definition: Station number for the SEABOSS trackline along which continuous bottom video was acquired. Two stations (stations 164 and 179) have two SEABOSS bottom video tracklines, so the tracklines were named "a" and "b" to indicate back-to-back deployments at the same station (e.g., line names 164a and 164b). Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish station numbers. Attribute: Attribute_Label: STARTTIME Attribute_Definition: Start time of the bottom video drift in UTC in the format HH:MM:SS. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish UTC start times of the bottom video. Attribute: Attribute_Label: ENDTIME Attribute_Definition: End time of the bottom video drift in UTC in the format HH:MM:SS. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish UTC end times of the bottom video. Attribute: Attribute_Label: JD Attribute_Definition: Julian day that the bottom video was collected based on UTC time; Julian day is the integer number representing the interval of time in days since January 1 of the year (2012 for these data). Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 234 Range_Domain_Maximum: 240 Attribute_Units_of_Measure: days Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: DATE Attribute_Definition: UTC date that the bottom video was collected in the format YYYYMMDD. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish dates. Attribute: Attribute_Label: YEAR Attribute_Definition: Year that the bottom video was collected (2012 for these data). Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2012 Range_Domain_Maximum: 2012 Attribute_Units_of_Measure: years Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: LENGTH_M Attribute_Definition: Length in meters of the bottom video trackline. Length was calculated in WGS 84 UTM Zone 19N. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.0 Range_Domain_Maximum: 72.5 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: CAMERA Attribute_Definition: Camera used to collect bottom video. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish between different camera models mounted on the grab sampler; however, for this survey, only one camera was used to collect bottom video. Attribute: Attribute_Label: CRUISE_ID Attribute_Definition: USGS Woods Hole Coastal and Marine Science Center field activity identifier (e.g., 2012-035-FA where 2012 is the survey year, 035 is survey number of that year, and FA is Field Activity). Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to distinguish cruises by year and ID number. Attribute: Attribute_Label: DEVICE_ID Attribute_Definition: Sampling device used to collect the bottom video. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to identify the sampling configuration used during the survey. Attribute: Attribute_Label: VEHICLE_ID Attribute_Definition: Vehicle (ship) used to collect data during survey 2012-035-FA. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: String used to identify the survey vessel. Distribution_Information: Distributor: 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 Resource_Description: USGS data release 2012-035-FA contains bottom video tracklines collected offshore of Massachusetts in Ipswich Bay and Massachusetts Bay (2012-035-FA_videos.zip). The zip file contains the following files: a shapefile of the bottom video trackline locations (2012-035-FA_videos.shp); a browse graphic of bottom video trackline locations (2012-035-FA_videos_browse.jpg); and Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM) metadata files in three standard formats (2012-035-FA_videos_meta.html, 2012-035-FA_videos_meta.txt, and 2012-035-FA_videos_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. 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: Esri ArcGIS 10.3.1 Format_Specification: Shapefile Format_Information_Content: The zip file contains a shapefile of bottom video trackline locations collected by the U.S. Geological Survey Woods Hole Coastal and Marine Science Center and Massachusetts Office of Coastal Zone Management in Ipswich Bay and Massachusetts Bay, Massachusetts, in 2012 and the associated metadata. File_Decompression_Technique: Use WinZip, 7-Zip, PeaZip, PKUNZIP, or other uncompressing software Transfer_Size: 0.5 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2012-035-FA/data/imagery/2012-035-FA_videos.zip Network_Resource_Name: https://doi.org/10.5066/P924M8R1 Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2012-035-FA/ Access_Instructions: The first link is a direct link to download the zip file of the data and metadata. The second and third links are for the field activity data page where additional datasets from this survey are available. Fees: none Technical_Prerequisites: This zip file contains data available in polyline shapefile format. The user must have software capable of reading shapefile format to use these data. Metadata_Reference_Information: Metadata_Date: 20200908 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Emily Huntley Contact_Organization: U.S. Geological Survey Contact_Position: Geographer/Database Specialist 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 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ehuntley@usgs.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time