Survey lines along which Klein 3000 sidescan-sonar data were collected in Buzzards Bay by the U.S. Geological Survey offshore of Massachusetts in 2009, 2010, and 2011 (BB_BackscatterTracklines Esri Polyline Shapefile, Geographic, WGS84).

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Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 2013
Title:

Survey lines along which Klein 3000 sidescan-sonar data were collected in Buzzards Bay by the U.S. Geological Survey offshore of Massachusetts in 2009, 2010, and 2011 (BB_BackscatterTracklines Esri Polyline Shapefile, Geographic, WGS84).

Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2012-1002

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/10.3133/ofr20121002
Online_Linkage:

http://pubs.usgs.gov/of/2012/1002/GIS/shapefile/BB_BackscatterTracklines.zip

Online_Linkage: http://pubs.usgs.gov/of/2012/1002/html/appendix1.html
Larger_Work_Citation:

Citation_Information:

Originator: Seth D. Ackerman
Originator: Brian D. Andrews
Originator: David S. Foster
Originator: Wayne E. Baldwin
Originator: William C. Schwab
Publication_Date: 2013
Title:

High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts.

Edition: 1.0
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2012-1002

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2012/1002/

Description:

Abstract:

These data were collected under a cooperative agreement between the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center (WHSC). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of seafloor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters of coastal Massachusetts, primarily in water depths of 5 to 30 meters (m) deep. Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports (http://woodshole.er.usgs.gov/project-pages/coastal_mass/). The data collected in the study area in Buzzards Bay, Massachusetts, include high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection) and ground validation (sediment samples, video tracklines, and bottom photographs). The geophysical data are released in USGS Open-File Report 2012-1002, High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts (http://pubs.usgs.gov/of/2012/1002/). The sampling data have not been prepared for publication yet. The geophysical data were collected during four separate surveys conducted between 2004 and 2011 (National Oceanic and Atmospheric Administration (NOAA) survey H11319 (in 2004; bathymetry only) and USGS surveys 2009-002-FA, 2010-004-FA, and 2011-004-FA)) and cover 410 square kilometers of the inner continental shelf. More information about the individual USGS surveys conducted as part of the Buzzards Bay project can be found on WHCS Field Activity Web pages: 2009-002-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2009-002-FA 2010-004-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-004-FA 2011-004-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-004-FA Information about the NOAA survey can be found at: H11319: http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H10001-H12000/H11319/DR/

Purpose:

This dataset contains approximately 4230 linear kilometers of trackline navigation for Klein 3000 sidescan-sonar data collected by the U.S. Geological Survey in 2009, 2010 and 2011 during USGS surveys 2009-002-FA, 2010-004-FA and 2011-004-FA) offshore of Massachusetts, in Buzzards Bay. These data are used to define the seafloor morphology as part of the Massachusetts Seafloor Mapping Project.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20090528
Ending_Date: 20110513

Currentness_Reference:

ground condition of individual surveys on the following dates: 20090528-20090618; 20100515-20100520; 20110513

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -71.121994
East_Bounding_Coordinate: -70.657272
North_Bounding_Coordinate: 41.669838
South_Bounding_Coordinate: 41.369881

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:4619db90-4155-4b01-9dbf-126c5c6032c9

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: WHSC
Theme_Keyword: Seafloor
Theme_Keyword: Marine Geology
Theme_Keyword: field activity 2009-002-FA
Theme_Keyword: field activity 2010-004-FA
Theme_Keyword: field activity 2011-004-FA
Theme_Keyword: field activity number 09002
Theme_Keyword: field activity number 10004
Theme_Keyword: field activity number 11004
Theme_Keyword: USGS CMG InfoBank ID M-2-09-BZ
Theme_Keyword: USGS CMG InfoBank ID U-4-10-BZ
Theme_Keyword: USGS CMG InfoBank ID B-15-11-BZ
Theme_Keyword: sidescan
Theme_Keyword: sidescan sonar
Theme_Keyword: sonar
Theme_Keyword: backscatter
Theme_Keyword: shapefile
Theme_Keyword: trackline
Theme_Keyword: survey line
Theme_Keyword: Klein
Theme_Keyword: Klein 3000
Theme_Keyword: k3k
Theme_Keyword: M/V Megan T. Miller
Theme_Keyword: M/V Scarlett Isabella

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: location

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Atlantic Ocean
Place_Keyword: Massachusetts
Place_Keyword: Buzzards Bay
Place_Keyword: New Bedford
Place_Keyword: Woods Hole
Place_Keyword: Cape Cod
Place_Keyword: West Falmouth
Place_Keyword: Cleveland Ledge
Place_Keyword: Elizabeth Islands

Stratum:

Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Seafloor
Stratum_Keyword: Surface
Stratum_Keyword: sea floor

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2009
Temporal_Keyword: 2010
Temporal_Keyword: 2011

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 source of this information.

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:

http://pubs.usgs.gov/of/2012/1002/GIS/browse_jpg/big/BB_BackscatterTracklines.jpg

Browse_Graphic_File_Description: Klein 3000 trackline navigation for Buzzards Bay, Massachusetts
Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.1850

Cross_Reference:

Citation_Information:

Originator: William W. Danforth
Publication_Date: 1997
Title:

XSonar/ShowImage: A complete system for rapid sidescan-sonar processing and display.

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 97-686

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: All attributes were checked in a consistent manner.

Logical_Consistency_Report:

Any spurious data points were removed during processing. Because this dataset is made up of data from multiple surveys, duplicate names may exist if referring to survey lines by the FileName prefix only; however, duplicates are actually impossible based on the extended FILENAME scheme of "lLLfN_YYMMDDHHMMSS" where LL=line number; N=file number; YY=year; MM=month; DD=day; HH=hour; MM=minute; SS=seconds (date/time based on UTC time). Note that the underscore is sometimes omitted during acquisition and is therefore missing in the filename.

Completeness_Report:

Only the subset of sidescan-sonar trackline navigation data collected within the study area of Buzzards Bay during field activities 2009-002-FA, 2010-004-FA, and 2011-004-FA are included in this spatial dataset. Trackline navigation for approximately 3,570 kilometers of additional sidescan-sonar trackline navigation data collected within Vineyard Sound, Massachusetts during these field activities were published in USGS Open-File Report 2012-1006 High-Resolution Geophysical Data from the Inner Continental Shelf: Vineyard Sound, Massachusetts (http://pubs.usgs.gov/of/2012/1006/). This shapefile includes trackline navigation from all the sidescan sonar data that was collected within the survey area; however only quality sonar data along the main survey lines were included in the sidescan sonar mosaic that is found on this report (BB_backscatter1m.tif). Noisy or poor quality data were not mosaicked. Data were omitted where it overlapped with equal or better quality data from an adjacent survey line (as was generally the case for lines less than several hundred meters long). Data from parts of lines l130f2_090606081500 and l131f1_090606091400 were omitted as they extended beyond the extent of the survey area and into an area covered by a previous sidescan sonar survey (http://pubs.usgs.gov/of/2006/1357/). Some of the raw (.XTF) files for the sidescan-sonar survey lines were originally named without an underscore between the concise linename and the SonarPro generated timestamp part of the filename. Before processing the navigation files, all XSonar generated navigation files (.nav) were made consistent to have the underscore (e.g. l1f1090528041200.nav became l1f1_090528041200.nav).

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Field activity 2009-002: The Klein 3000 was towed from the stern A-frame of the M/V Megan T. Miller. Differential GPS (DGPS) position data were provided by the Ashtech BRG2 receiver and recorded to the raw data files (XTF) via SonarPro (version 10.0) on the sonar acquisition computer. The GPS antenna was mounted on the aft end of the acquisition lab van. All GPS data during this survey was referenced to the WGS84 horizontal datum. The horizontal offsets between the GPS antenna and the sheave on the A-frame were measured prior to the survey (x: -2.0m; y:-8.35m; z: +2m). The side-scan tow cable was deployed through a 3PS digital block cable counter attached to the A-frame. Real-time cable-out measurements were transmitted via serial connection to the SonarPro acquisition software, which calculated tow-fish layback. All horizontal offsets were directly applied in the acquisition software so the navigation recorded in the XTF data reflect the position including the layback offset. The layback calculations do not account for fish motion behind the vessel, which is caused by sea state and vessel speed induced changes in the angle and scope of the tow cable. DGPS positional accuracy is estimated to be within 3-5 m; WAAS enable DGPS is estimated to be less than 3 m. Taking the additional fish motion and cable movement into account, a conservative estimate of positional accuracy for this dataset is estimated to be within 10 m. Field activity 2010-004: The Klein 3000 was towed from the stern A-frame of the M/V Megan T. Miller. Real-Time Kinematic (RTK) GPS position data were provided by the NovAtel DL-V3 receiver and recorded to the raw data files (XTF) via SonarPro (version 11.0) on the sonar acquisition computer. The GPS antenna was mounted on the top of the SWATHplus (interferometric bathymetry) transducer pole, midship on the starboard side (the middle of the 3 bathymetry system antennas). On a few brief occasions the RTK-GPS signal was lost and the navigation system fell back to standalone DGPS or GPS mode. In these cases, the lower quality positions were used and no corrections were made for RTK navigation gaps. All GPS data during this survey were referenced to the WGS84 horizontal datum. The horizontal offsets between the GPS antenna and the sheave on the A-frame were measured prior to the survey (x: -4.1m; y: -14.94m; z: -1.33m). The side-scan tow cable was deployed through a 3PS digital block cable counter attached to the A-frame. Real-time cable-out measurements were transmitted via serial connection to the SonarPro acquisition software, which calculated tow-fish layback. All horizontal offsets were directly applied in the acquisition software so the navigation recorded in the XTF data reflect the position including the layback offset. The layback calculations do not account for fish motion behind the vessel, which is caused by sea state and vessel speed induced changes in the angle and scope of the tow cable. RTK positional accuracy is estimated to be less than 1 m. Taking the additional fish motion, cable movement and RTK-GPS navigation dropouts into account, a conservative estimate of positional accuracy for this dataset is estimated to be within 10 m. Field activity 2011-004: The Klein 3000 was towed from the stern A-frame of the M/V Scarlett Isabella. Differential GPS (DGPS) position data were provided by the Ashtech BRG2 receiver and recorded to the raw data files (XTF) via SonarPro (version 11.0) on the sonar acquisition computer. The GPS antenna was mounted on the forward end of the acquisition lab van. All GPS data during this survey was referenced to the WGS84 horizontal datum. The horizontal offsets between the GPS antenna and the sheave on the A-frame were measured prior to the survey (x: +4.31m; y: -9.18m; z: 0.0m). The side-scan tow cable was deployed through a 3PS digital block cable counter attached to the A-frame. Real-time cable-out measurements were transmitted via serial connection to the SonarPro acquisition software, which calculated tow-fish layback. All horizontal offsets were directly applied in the acquisition software so the navigation recorded in the XTF data reflect the position including the layback offset. The layback calculations do not account for fish motion behind the vessel, which is caused by sea state and vessel speed induced changes in the angle and scope of the tow cable. DGPS positional accuracy is estimated to be within 3-5 m; WAAS enable DGPS is estimated to be less than 3 m. Taking the additional fish motion and cable movement into account, a conservative estimate of positional accuracy for this dataset is estimated to be within 10 m.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: Raw sidescan sonar data

Type_of_Source_Media: disc
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20090528
Ending_Date: 20110513

Source_Currentness_Reference:

ground condition of individual surveys on the following dates: 20090528-20090618; 20100515-20100520; 20110513

Source_Citation_Abbreviation: none
Source_Contribution:

Data acquisition at sea: Sidescan sonar data were collected with a Klein 3000 dual frequency (132/445 kHz) sidescan-sonar towfish on the M/V Megan T. Miller (2009-002-FA and 2010-004-FA) and the M/V Scarlett Isabella (2011-004-FA). During all three surveys the sonar was towed from the stern A-frame of the vessel. A 3PS digital block cable counter was used to measure the amount of tow cable deployed, and cable-out values were transmitted via serial connection to the SonarPro acquisition software (versions 10.0 and 11.0) for layback calculation. Tracklines are generally spaced 100m apart (150m in the central Buzzards Bay area where the USGS data overlaps with NOAA multibeam echo-sounder data). Most of the data were acquired roughly parallel to the axis and shipping lane within Buzzards Bay at an average speed of 5 knots. Some survey specific specifications are listed below: 2009-002-FA SonarPro version: 10.0 nav: from the antenna on the aft end of the acquisition van into the Ashtech BRG2 receiver (DGPS) sheave offsets x: -2.0m; y: -8.35m; z: +2.0m 2010-004-FA SonarPro version 11.0 nav: from the center antenna on the SWATHplus pole into the NovAtel DL-V3 receiver (RTK) sheave offsets x: -4.1m; y: -14.94m; z: -1.33m 2011-004-FA SonarPro version 11.0 nav: from the antenna on the fwd end of the acquisition van into the Ashtech BRG2 receiver (DGPS) sheave offsets x: +4.31m; y: -9.18m; z: 0.0m

Process_Step:

Process_Description:

Navigation was extracted at 1-minute (2009-002-FA and 2010-004-FA) or 30-second (2011-004-FA) intervals from the raw sidescan sonar data (XTF format) using the XSonar (versions: 1.1 in 2009 and 2.0 in 2010 and 2011) 'demultiplex' function (Danforth and others, 1991). Spurious fixes were removed or corrected when possible. Navigation files were renamed if necessary (see completeness report in this metadata file), reformatted, and concatenated by survey, using shell scripts convertXsonarNav_2012 and Xsonar2ArcNav_2012, into comma-separated value (CSV) text files. Old style USGS field activity numbers (09002, 10004 or 11004) were appended to each record in the respective CSV files using the Vi editor VIM (version 7.3). The CSV files were concatenated into a single CSV file prior to import into ArcGIS (version 9.3). [output files: Klein_SonarnavLines_09002_FINAL.csv, Klein_SonarnavLines_10004_FINAL.csv, Klein_SonarnavLines_11004_FINAL.csv and Klein_ALL_BB.csv]

Process_Date: 2012
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

Contact_Voice_Telephone: (508) 548-8700x2315
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

In ArcCatalog (version 9.3), navigation text was converted to a point feature class by right-clicking on the comma separated text file -- Create Feature Class -- from XY table using the defined projection Geographic (Decimal_Degrees_WGS84.prj). {outputfile: XYKlein_ALL_BB.shp]

Process_Date: 2012
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

Contact_Voice_Telephone: (508) 548-8700 x2315
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

VAC Extras tool (version: 2.04 FeatConv - Points to Line v2; USGS in-house software) was then used within ArcMap (version 9.3) to convert the navigation points to a trackline shapefile. The 'FileName' field was used to define which points were used to generate each polyline feature, and the first occurrence of fields 'JulDay', 'SurveyID', and 'Time' and the last occurrence of 'Time' were chosen to be included as attributes in the output shapefile. The trackline shapefile was checked to ensure there were no spurious navigation fixes. XTools Pro (version 7.1.0) for ArcGIS desktop was used (Table Operations - Table Restructure) to reorganize and add fields to the polyline shapefile's attribute table. Table attributes for the survey ID ("SurveyID'), Julian day ('JulDay') of data collection, start time ('TimeStart') and end time ('TimeEnd') of each line were already populated but renamed if necessary. Fields for device used to collect the data ('DeviceID'), survey vessel name ('VehicleID'), and year ('Year') were added and then populated using field calculator and the table editor in ArcMap (version 9.3). The length field ('Length_km') was also added and then populated using 'Calculate Geometry' (Property = Length; Use coordinate system of the data frame = WGS 1984 UTM Zone 19N; Unit = Kilometers), which can be accessed by right clicking on the attribute field name in the table view.

Process_Date: 2012
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

Contact_Voice_Telephone: (508) 548-8700 x2315
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

Edits to the metadata were made to fix any errors that MP v 2.9.32 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.

Process_Date: 20151208
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
Address: 384 Woods Hole Rd
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
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: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
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:

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: 690

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: BB_BackscatterTracklines
Entity_Type_Definition: Trackline for sidescan sonar system
Entity_Type_Definition_Source: USGS

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: FileName
Attribute_Definition:

Name of the trackline along which sidescan-sonar data were collected. The extended FILENAME scheme looks like this: "lLLfN_YYMMDDHHMMSS" where LL=line number; N=file number; YY=year; MM=month; DD=day; HH=hour; MM=minute; SS=seconds (date/time based on UTC time).

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: String up to 40 characters

Attribute:

Attribute_Label: Year
Attribute_Definition: Year data were collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Four character string

Attribute:

Attribute_Label: JulDay
Attribute_Definition:

Julian day of the start of data collection where Julian day is the integer number (although recorded here in text string format) representing the interval of time in days since January 1 of the year of collection.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Three character string

Attribute:

Attribute_Label: SurveyID
Attribute_Definition:

WHSC field activity identifier in the new style (e.g. "2009-002-FA" where 2009 is the survey year, 002 is survey number of that year, and FA is Field Activity); Note the old style of this would be represented as "09002"

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Eleven character string

Attribute:

Attribute_Label: DeviceID
Attribute_Definition: Sonar device used to collect sidescan-sonar data
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: String up to 15 characters

Attribute:

Attribute_Label: VehicleID
Attribute_Definition: Survey vessel name
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: String up to 30 characters

Attribute:

Attribute_Label: TimeStart
Attribute_Definition: Start time for the sidescan-sonar survey line in UTC (hh:mm:ss)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Eight character string

Attribute:

Attribute_Label: TimeEnd
Attribute_Definition: End time for the sidescan-sonar survey line in UTC (hh:mm:ss)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Eight character string

Attribute:

Attribute_Label: Length_km
Attribute_Definition:

Length of sidescan-sonar survey line in kilometers (UTM Zone 19N, WGS84)

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.09
Range_Domain_Maximum: 19.53

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: Downloadable Data
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: SHP
Format_Version_Number: ArcGIS 9.3
Format_Specification: Esri polyline shapefile
Format_Information_Content:

Trackline navigation for Klein 3000 sidescan-sonar data collected by the U.S. Geological Survey offshore of Massachusetts in Buzzards Bay. This also includes associated metadata.

File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.4

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://pubs.usgs.gov/of/2012/1002/GIS/shapefile/BB_BackscatterTracklines.zip

Access_Instructions: Data can be downloaded via the World Wide Web (WWW)

Offline_Option:

Offline_Media: DVD-ROM
Recording_Capacity:

Recording_Density: 4.75
Recording_Density_Units: GB

Recording_Format: UDF

Fees: none

Technical_Prerequisites:

This zip file contains data available in Esri shapefile format. The zip file also contains associated metadata. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from Esri at www.esri.com.

Metadata_Reference_Information:

Metadata_Date: 20240318
Metadata_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: 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: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2012-1002/bb_backscattertracklines.shp.html>