Video transects of the sea floor on Stellwagen Bank on U.S. Geological Survey field activity 2015-062-FA, aboard the R/V Auk, Oct. 21 and 22 and Nov. 3 and 4 2015 (geographic, WGS84, 2015-062-FA_driftlines.shp polyline)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Page C. Valentine
Publication_Date: 2017
Title:
Video transects of the sea floor on Stellwagen Bank on U.S. Geological Survey field activity 2015-062-FA, aboard the R/V Auk, Oct. 21 and 22 and Nov. 3 and 4 2015 (geographic, WGS84, 2015-062-FA_driftlines.shp polyline)
Edition: 1.0
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polyline)
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7N015FS
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/10.5066/F7N015FS
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Page C. Valentine
Originator: VeeAnn A. Cross
Publication_Date: 2017
Title:
Sea floor sediment samples, seabed imagery, and CTD data collected in Stellwagen Bank National Marine Sanctuary, MA in 2015, U.S. Geological Survey Field Activity 2015-062-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7N015FS
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Valentine, P.C. and Cross, V.A., 2017, Sea floor sediment samples, seabed imagery, and CTD data collected in Stellwagen Bank National Marine Sanctuary, MA in 2015, U.S. Geological Survey Field Activity 2015-062-FA: U.S. Geological Survey data release, https://doi.org/10.5066/F7N015FS.
Online_Linkage: https://doi.org/10.5066/F7N015FS
Online_Linkage:
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 75 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 temperature, conductivity, and depth measurements of the water column. Additional information regarding this field activity is available from https://cmgds.marine.usgs.gov/fan_info.php?fa=2015-062-FA.
Purpose:
These tracklines record the location of the R/V Auk while collecting continuous video of the sea floor. These tracklines will help geolocate the information displayed in the video to the sea floor. This information will be used in making the seabed geologic map.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20151021
Ending_Date: 20151104
Currentness_Reference:
ground condition of when data were collected. There were four days of data collection. October 21-22 and November 3-4, 2015.
Status:
Progress: complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.457460
East_Bounding_Coordinate: -70.138620
North_Bounding_Coordinate: 42.420970
South_Bounding_Coordinate: 42.150820
Keywords:
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: stations
Theme_Keyword: navigation
Theme_Keyword: video
Theme_Keyword: trackline
Theme_Keyword: polyline shapefile
Theme_Keyword: SEABed Observation and Sampling System
Theme_Keyword: SEABOSS
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: sea-floor characteristics
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: Not to be used for navigation.
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: 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://pubs.usgs.gov/fs/fs142-00/
Data_Quality_Information:
Logical_Consistency_Report:
Each record within the shapefile has the same information and was derived in the same manner.
Completeness_Report:
This represents the video trackline information for every video drift line 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 one second intervals with a horizontal accuracy of 10 m. The navigation antenna is located 5.3 m forward of the SEABOSS deployment location. This offset was not accounted for in the navigation acquisition (navigation fixes represent antenna location).
Lineage:
Process_Step:
Process_Description:
Video methods and data availability:
Seabed video images were collected using a battery-operated, high-definition (1920 x 1080 pixels) GoPro digital video camera mounted on the USGS SEABed Observation and Sampling System (SEABOSS). The SEABOSS system actually had two GoPro cameras attached to it - with the second camera mounted a little higher on the frame which only shows a partial view of the seabed. This second camera was used only to observe obstacles, like gill nets and lobster gear, in order to avoid entanglement. Or, in the case of station 4382, provide a backup system if the primary camera failed.
As the SEABOSS drifted over the seabed, the forward-looking camera 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 and recovery of the SEABOSS, transit through the water column, and the drift over the seabed. The duration of individual video files ranges from 4 to 12 minutes. Video files are archived in .MP4 format and range in size from 0.9 to 2.6 gigabytes. These video files are not available as 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 (lat/lon) of the start of the video drift was recorded (from the navigation receiver) in the log book at the time of the deployment of the SEABOSS. Video was recorded during the descent through the water column (1-2 minutes), during the drift over the seabed, and during the ascent to the surface. The position (lat/lon) of the end of the video drift was recorded at the beginning of the ascent through the water column. The corresponding times are also recorded.
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 (available from the Larger Work citation) was run through an awk script (on a machine running CYGWIN) in order 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), longitude (decimal degrees), hour, minute, second, julian day, year. The julian day was determined by the original start date in the filename of the navigation file as the GPGGA string does not contain any date information. The awk script also made sure that there were not duplicate records in terms of time - such as two navigation points recorded at 16:38:23. However, the script does not check for duplicate coordinate 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.
Source_Used_Citation_Abbreviation: AUK2015062_21oct2015_UTC_nav_raw.csv
Source_Used_Citation_Abbreviation: AUK2015062_22oct2015_UTC_nav_raw.csv
Source_Used_Citation_Abbreviation: AUK2015062_03nov2015_UTC_nav_raw.csv
Source_Used_Citation_Abbreviation: AUK2015062_04nov2015_UTC_nav_raw.csv
Process_Date: 2016
Source_Produced_Citation_Abbreviation: oct21nav.csv
Source_Produced_Citation_Abbreviation: oct22nav.csv
Source_Produced_Citation_Abbreviation: nov3nav.csv
Source_Produced_Citation_Abbreviation: nov4nav.csv
Source_Produced_Citation_Abbreviation: allnav_noheader_clean_nodupes.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:
Another awk script was run on the stations summary csv file to extract the following columns of information: station, julian day of video start, UTC time of video start, julian day of video end, UTC time of video end, year
Source_Used_Citation_Abbreviation: 2015-062-FA_station_data_summary.csv
Process_Date: 2016
Source_Produced_Citation_Abbreviation: auk201506s_justdrifttime.csv
Process_Step:
Process_Description:
A python script (driftlog_gui_v5.py) run from python IDLE version 2.7.8 was used to extract all the navigation points from the navigation file based on the start and end time recorded in the log book of the video drift. This was necessary because no time was recorded on the GoPro video, just the time the video file was created. Ideally, there is a match of the same time (with a corresponding navigation fix) in the GPS file to the start video time recorded in the log book. Same thing with the ending time. 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.
The python script also combines the extracted points for each video drift line and combines these points into a polyline within a shapefile. The resulting shapefile has a polyline for every video drift comprised of all the navigation points available corresponding to the start and end time of each drift line. Based on the navigation system, the projection of the dataset was set to geographic, WGS 84.
Source_Used_Citation_Abbreviation: allnav_noheader_clean_nodupes.csv
Source_Used_Citation_Abbreviation: auk201506s_justdrifttime.csv
Process_Date: 2016
Source_Produced_Citation_Abbreviation: 2015-062-FA_video_driftlines.shp
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: 75
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: 2015-062-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: 74
Attribute:
Attribute_Label: Survey
Attribute_Definition:
Name or number of cruise on which sample collected. The cruise identifier is in the format YYYY-XXX where YYYY is the survey year, and XXX is the survey number of that year.
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 is the integer number representing the interval of time in days since January 1 of the year of collection. Based on the date in UTC time at the time of deployment of the SEABOSS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 294
Range_Domain_Maximum: 308
Attribute:
Attribute_Label: LineStart
Attribute_Definition:
Start time of the video drift as recorded in the log book, in UTC time in HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Text field presented as a number.
Attribute:
Attribute_Label: LineEnd
Attribute_Definition:
End time of the video drift as recorded in the log book, in UTC time in HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Text field presented as a number.
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 HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Text field presented as a number.
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 HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Text field presented as a number.
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:
2015-062-FA_video_driftlines.zip contains the shapefile 2015-062-FA_video_driftlines.shp and the other shapefile components as well as the browse graphic (2015-062-FA_driftlines_browse.jpg). The zip file also contains the FGDC CSDGM metadata in TXT, XML, and HTML formats.
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: ArcGIS 10.3.1
Format_Information_Content:
The zip file contains the video drift transects polyline shapefile, along with the FGDC CSDGM metadata.
Transfer_Size: 0.1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
Fees: none
Technical_Prerequisites:
These data are available in Esri shapefile format. The user must have software capable of reading this format. The data are available for download in zip format.
Metadata_Reference_Information:
Metadata_Date: 20170821
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: 02556-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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