BB_BathyTracklines: Survey lines along which swath bathymetry data were collected in Buzzards Bay by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration offshore of Massachusetts in 2004, 2009, 2010, and 2011 (Esri Polyline Shapefile, Geographic, WGS84)

Metadata also available as - [Parseable text]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2013
Title:
BB_BathyTracklines: Survey lines along which swath bathymetry data were collected in Buzzards Bay by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration offshore of Massachusetts in 2004, 2009, 2010, and 2011 (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:
<http://pubs.usgs.gov/of/2012/1002/GIS/shapefile/BB_BathyTracklines.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:
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
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/html/current_map.html>). 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 4770 linear kilometers of trackline navigation for interferometric (Systems Engineering and Assessment Ltd. SWATHPlus-M) and multibeam (RESON SeaBat 8125) bathymetry data collected by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration, respectively, during four surveys (USGS surveys 2009-002-FA, 2010-004-FA and 2011-004-FA; and NOAA survey H11319 in 2004) 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: 20040330
Ending_Date: 20110513
Currentness_Reference:
ground condition of individual surveys on the following dates: 20040330-20040412; 20090528-20090618; 20100515-20100520; 20110513
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.121835
East_Bounding_Coordinate: -70.657249
North_Bounding_Coordinate: 41.669579
South_Bounding_Coordinate: 41.369678
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
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: NOAA hydrographic survey registry number H11319
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: shapefile
Theme_Keyword: trackline
Theme_Keyword: survey line
Theme_Keyword: bathymetry
Theme_Keyword: swath bathymetry
Theme_Keyword: interferometry
Theme_Keyword: multibeam bathymetry
Theme_Keyword: SEA SWATHPlus
Theme_Keyword: SEA Submetrix
Theme_Keyword: RESON 8125
Theme_Keyword: M/V Megan T. Miller
Theme_Keyword: M/V Scarlett Isabella
Theme_Keyword: NOAA Ship RUDE
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: oceans and coastal
Theme_Keyword: oceans and estuaries
Theme_Keyword: location
Place:
Place_Keyword_Thesaurus: General
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: General
Stratum_Keyword: Seafloor
Stratum_Keyword: Surface
Temporal:
Temporal_Keyword_Thesaurus: General
Temporal_Keyword: 2004
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_BathyTracklines.jpg>
Browse_Graphic_File_Description:
Swath bathymetry 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: National Oceanic and Atmospheric Administration
Publication_Date: 2004
Title:
National Oceanic and Atmospheric Administration Data Acquisition and Processing Report to Accompany 2004 Hydrographic Surveys, NOAA Ship RUDE (s590)
Series_Information:
Series_Name: Data Acquisition and Process Report (DAPR)
Issue_Identification: NOAA Ship RUDE (2004)
Publication_Information:
Publication_Place: National Geophysical Data Center, Boulder, CO
Publisher:
National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC)
Online_Linkage: <http://surveys.ngdc.noaa.gov/mgg/NOS/DAPRs/NOAAShipRUDE2004.pdf>
Cross_Reference:
Citation_Information:
Originator: NOAA (National Oceanic and Atmospheric Administration)
Publication_Date: 2004
Title:
H11319_BuzzBay [Descriptive Report, Basic Hydrographic Survey H11319, Buzzards Bay, Massachusetts
Series_Information:
Series_Name: Descriptive Report (DR)
Issue_Identification: H11319
Publication_Information:
Publication_Place: National Geophysical Data Center, Boulder, CO
Publisher:
National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC)
Online_Linkage:
<http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H10001-H12000/H11319/DR/H11319.pdf>

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 filenames likely exist for these survey lines; however, an additional attribute (called 'UniqueLine') was created during the processing of this dataset to make a unique identifier for each survey line segment.
Completeness_Report:
Only the subset of swath-bathymetry trackline navigation collected within the Buzzards Bay study area during USGS field activities 2009-002-FA, 2010-004-FA, and 2011-004-FA are included in this spatial dataset. Trackline navigation for approximately 3,920 kilometers of additional swath-bathymetry 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 swath bathymetric data that was collected within the survey area. However, only quality sonar data along the main survey lines were included in the final bathymetry grid that is found on this report (BB_Bathy5m). Noisy or poor quality data were not included in the grid. Data from some survey lines were omitted where they overlapped with equal or better quality data from adjacent lines (as was the case for the few lines that were less than several hundred meters long). Data along tie and transit lines were not included in the final grid. Also, data from the southern extent of line l131f1 were omitted as they extended beyond the survey area boundary into an area covered by a previous NOAA survey (see NOAA Survey H11076 <ftp://ftp.ngdc.noaa.gov/pub/coast/H10001-H12000/H11076/> and USGS Open File Report 2006-1357 <http://pubs.usgs.gov/of/2006/1357/>).

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Hydrographic survey H11319: Horizontal sounding positional control for the NOAA H11319 survey was determined using the Global Positioning System (GPS) corrected by U.S. Coast Guard Differential GPS (DGPS) beacon stations. The primary DGPS beacon used for survey H11319 was at Acushnet, MA and the secondary beacon was at Portsmouth, NH. No horizontal control stations were established for the NOAA survey. Additional information may be found in the NOAA Descriptive Report for survey H11319 and the Data Acquisition and Processing Report.

Field activities 2009-002-FA and 2010-004-FA: Navigation was acquired with a Coda Octopus F180 Differential Global Positioning System + Wide Area Augmentation System (DGPS+WAAS); which are accurate to + or - 1 to 2 meters, horizontally. All DGPS data are referenced to WGS84. The SWATHPlus transducers were mounted on a rigid pole, approximately 2.46 m below the water line, along the starboard side of the M/V Megan T. Miller. The DGPS antenna was located on the same pole approximately 4.3m above the sea surface. These offsets were corrected within the SWATHPlus acquisition software.

Field activity 2011-004-FA: Navigation was acquired with a Coda Octopus F180 Differential Global Positioning System + Wide Area Augmentation System (DGPS+WAAS); which are accurate to + or - 1 to 2 meters, horizontally. All DGPS data are referenced to WGS84. The SWATHPlus transducers were mounted on a rigid pole, approximately 2.17 m below the water line, along the port side of the M/V Scarlett Isabella. The DGPS antenna was located on the same pole approximately 4.6m above the sea surface. These offsets were corrected within the SWATHPlus acquisition software.

The DGPS horizontal positional accuracy is estimated to be within 3-5 m; WAAS enable DGPS accuracy is estimated to be within less than 3 m and the accuracy of RTK-GPS (which was not applied to the horizontal positions for these surveys) is estimated to be less than 1 m. However, the U.S. Coast Guard maintains a maritime DGPS service providing 10 meter accuracy for the coastal areas of the continental US; therefore, a very conservative, worse-case estimate of the horizontal positional accuracy of this survey data is approximately 10 meters (although these systems have been shown to be reliable to less than 2m). (sources: <http://www.noaa.gov>; <http://www.nos.noaa.gov>; <http://www.ngs.noaa.gov>; <http://www.nstb.tc.faa.gov/>; <http://www.navcen.uscg.gov>).

Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: raw bathymetry 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:
This trackline dataset is a combination of navigation data along which swath bathymetry was collected by the USGS (with a 234 kHz Systems Engineering and Assessment Ltd. (SEA) SWATHplus interferometric sonar mounted on the M/V Megan T. Miller (2009 and 2010) and the M/V Scarlett Isabella (2011)). Data were acquired between May 2009 and May 2011.

USGS Configuration: Survey: Survey lines were run at an average speed of 5 knots and were spaced 50-100 m apart to obtain overlapping swaths of data and full seafloor coverage. Sonar: The SEA SWATHplus-M operates at a frequency of 234 kHz and a variable range (increased or decreased manually depending on water depth). The system was operated with a transmit power: 80 percent, a transmit length: 12 cycles (2009-002-FA and 2010-004-FA) or 43 cycles (2011-004-FA), 3072 samples per channel (2009-002-FA) or 4096 samples per channel (2010-004-FA and 2011-004-FA), and a variable range (increased or decreased depending on water depth).

Additonal sonar configuration information can be found in the metadata for the bathymetry grid included with this report (USGS Open-File Report 2012-1002, High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts at <http://pubs.usgs.gov/of/2012/1002/html/appendix1.html>)

Source_Information:
Source_Citation:
Citation_Information:
Originator:
National Oceanic and Atmospheric Administration, National Ocean Service
Publication_Date: Unpublished Material
Title: CARIS HIPS database of bathymetry data
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040330
Ending_Date: 20040412
Source_Currentness_Reference:
ground condition of individual survey on the following dates: 20040330-20040412
Source_Citation_Abbreviation: none
Source_Contribution:
This trackline dataset contains the selected tracklines of navigation data along which swath bathymetry was collected by the NOAA (with a 455 kHz multibeam-echosounder mounted on the NOAA Ship RUDE(2004)). Data were acquired between March and April 2004. These are the selected survey lines that were need to complete the final bathymetry grid. The USGS surveyed around this known area during survey 2009-002-FA to save time and money by making use of exisitng high-quality bathymetry data.

NOAA Configuration: Survey: All data were collected by the NOAA Ship RUDE. Trackline spacing for survey H11319 was based on an estimate of 2.5 times the water depth to achieve overlapping swaths for full seafloor coverage. For this area survey lines were typically between 25-50m apart. Ship speed was determined such that the survey achieved a sampling rate of 3.2 pings per 3 meters of along track distance. Sonar: The RESON SeaBat 8125 is a 0.5 degree (across-track) by 1 degree (along-track) beam angle system which operates at a frequency of 455 kHz and collects 240 individual soundings in a swath oriented perpendicular to the vessel track. The system is capable of ping rates ranging from 3.02 Hz to 40.05 Hz but for this survey, the maximum ping rate was set to 20 Hz. Other: All bathymetry processing, including navigation editing, was done by NOAA Hydrographers. NOAA's Computer Aided Resource Information System (CARIS) directory was provided to the USGS. Refer to the Fall Data Acquisition and Processing Report (DAPR) and the Horizontal and Vertical Control Report, for detailed equipment, vessel configuration and setting information.

Additonal sonar configuration information can be found in the metadata for the bathymetry grid included with this report (USGS Open-File Report 2012-1002, High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts at <http://pubs.usgs.gov/of/2012/1002/html/appendix1.html>)

Process_Step:
Process_Description:
For Field Activities 2009-002-FA, 2010-004-FA, and 2011-004-FA: Raw to Processed Conversion: Survey navigation information is stored within each raw (sxr) data file. Each raw SWATHPlus bathymetric sonar file (sxr) was converted to a SWATHPlus processed file (sxp) using SEA SWATHPlus Swath Processor (ver. 3.06 in 2009 and 2010 and ver. 3.07 in 2011).
Process_Date: 2009; 2010; 2011
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:
For Field Activity 2009-002-FA, 2010-004-FA and 2011-004-FA: CARIS Processing: A new Computer Aided Resource Information System (CARIS) Hydrographic Information Processing System (HIPS) project (ver. 7.1) was created with projection information set to Universal Transverse Mercator (UTM) Zone 19, WGS84. Each SWATHPlus processed file (sxp) was imported to the new CARIS project using the Import/Conversion Wizard. Navigation was checked and edited as needed using the Navigation Editor tool. For NOAA survey H11319: NOAA's CARIS directory was provided to the USGS. The lines from this survey that were not needed were removed from the CARIS HIPS project. No additional swath processing or navigation editing was performed to the NOAA data in CARIS.
Process_Date: 2009; 2010; 2011
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:
Perl and AWK programming scripts were used to extract and subsample the navigation fixes stored in the CARIS HIPS database. The processing flow for this step follows: A. Extract navigation for each line in CARIS HDCS directory using Perl script do_CARIS_nav3.pl (which runs the CARIS program printfnav for all the lines in the HDCS dir). (Extracted navigation file is tab-delimited in format YYYY-JD HH:MM:SS:FFF DD.LAT DD.LONG SSSSS_VVVVV_YYYY-JD_LLLL AR where YYYY=year, JD=Julian Day, HH=hour, MM=minute, SS=seconds, FFF=fractions of a second, DD.LAT=latitude in decimal degrees, DD.LONG=longitude in decimal degrees, SSSSS=survey name, VVVVV=vessel name, LLLL=linename, AR=accepted or rejected navigation fix) This step creates the file combined.txt B. The navigation files extracted from CARIS HIPS contained 4-5 navigation fixes per second. These files were subsampled to produce files containing 1 fix per second using AWK to remove the fractions-of-a-second from the time column then grabbing the first occurrence of each second. > awk '{print $1" "substr($2,1,8)" "$3" "$4" "$5}' 2.combined.txt | awk '$2 != prev { print; prev = $2 }' > 3.BB_NAV_awked.txt C. AWK was used to eliminate spurious fixes outside the survey area and reformat the navigation for conversion from comma separated value (CSV) data to Esri point feature class > awk -F" " '{if(substr($4,1,3)>"-70" || substr($4,1,3)<"-71") print $0}' 2.BB_NAV_awked.txt | awk -F" " '{if(substr($3,1,2)>"40" || substr($3,1,2)<"41") print $0}' | awk -f reformat_CARIS2Arc_BuzzBay.awk > BB_bathyNAV_done.csv.
Process_Date: 20120502
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:
In ArcCatalog (version 9.3), navigation text (BB_bathyNAV_done.csv) was converted to a point feature class by right-clicking on the comma separated value text file -- Create Feature Class -- from XY table using the defined projection Geographic (Decimal_Degrees_WGS84.prj). [output file: XYBB_bathyNAV_done.shp]
Process_Date: 20120502
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:
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 'UniqFile' field was used to define which points were used to generate each polyline feature, and the first occurrence of fields 'FileName', 'Year', 'JulDay', 'SurveyID', 'VehicleID', 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 severely 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 unique file name ('UniqFile'), filename ('FileName'), survey ID ("SurveyID'), year ('Year'), Julian day ('JulDay') of data collection, survey vessel name ('VehicleID'), start time ('TimeStart') and end time ('TimeEnd') of each line were already populated but renamed if necessary. Field for device used to collect the data ('DeviceID') was 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

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: 632

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_BathyTracklines
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: UniqFile
Attribute_Definition:
Unique filename; in the format SSSSS_TTTTTT where SSSSS is the old style survey id number and TTTTTT is the name of the trackline along which swath bathymetric data was collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 20 characters
Attribute:
Attribute_Label: FileName
Attribute_Definition:
Name of the trackline along which swath bathymetric data was collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 10 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" - see UniqFile field
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 30 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 swath bathmetric 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 swath bathmetric 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 the swath bathmetric survey line in kilometers (UTM Zone 19N, WGS84)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.14
Range_Domain_Maximum: 18.47

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 swath bathymetric data (interferometric-sonar and multibeam-echosounder) collected by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration offshore of Massachusetts in Buzzards Bay. This includes associated metadata.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 19 MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://pubs.usgs.gov/of/2012/1002/GIS/shapefile/BB_BathyTracklines.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: 20121018
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: sackerman@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.25 on Thu Mar 21 12:47:50 2013