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 (BB_BathyTracklines Esri Polyline Shapefile, Geographic, WGS84)

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:


What does this data set describe?

Title:
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 (BB_BathyTracklines Esri Polyline Shapefile, Geographic, WGS84)
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/
  1. How might this data set be cited?
    U.S. Geological Survey, 2013, 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 (BB_BathyTracklines Esri Polyline Shapefile, Geographic, WGS84): Open-File Report 2012-1002, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts.

    Online Links:

    This is part of the following larger work.

    Ackerman, Seth D., Andrews, Brian D., Foster, David S., Baldwin, Wayne E., and Schwab, William C., 2013, High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts.: Open-File Report 2012-1002, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -71.121835
    East_Bounding_Coordinate: -70.657249
    North_Bounding_Coordinate: 41.669579
    South_Bounding_Coordinate: 41.369678
  3. What does it look like?
    http://pubs.usgs.gov/of/2012/1002/GIS/browse_jpg/big/BB_BathyTracklines.jpg (JPEG)
    Swath bathymetry trackline navigation for Buzzards Bay, Massachusetts
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 30-Mar-2004
    Ending_Date: 13-May-2011
    Currentness_Reference:
    ground condition of individual surveys on the following dates: 20040330-20040412; 20090528-20090618; 20100515-20100520; 20110513
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • String (632)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    BB_BathyTracklines
    Trackline for sidescan sonar system (Source: USGS)
    FID
    Internal feature number (Source: ESRI) Sequential unique whole numbers that are automatically generated
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features
    UniqFile
    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 (Source: USGS) String up to 20 characters
    FileName
    Name of the trackline along which swath bathymetric data was collected (Source: USGS) String up to 10 characters
    Year
    Year data were collected (Source: USGS) Four character string
    JulDay
    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. (Source: USGS) Three character string
    SurveyID
    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 (Source: USGS) Eleven character string
    DeviceID
    Sonar device used to collect sidescan-sonar data (Source: USGS) String up to 30 characters
    VehicleID
    Survey vessel name (Source: USGS) String up to 30 characters
    TimeStart
    Start time for the swath bathmetric survey line in UTC (hh:mm:ss) (Source: USGS) Eight character string
    TimeEnd
    End time for the swath bathmetric survey line in UTC (hh:mm:ss) (Source: USGS) Eight character string
    Length_km
    Length of the swath bathmetric survey line in kilometers (UTM Zone 19N, WGS84) (Source: USGS)
    Range of values
    Minimum:0.14
    Maximum:18.47

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2315 (voice)
    508-457-2310 (FAX)
    sackerman@usgs.gov

Why was the data set created?

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.

How was the data set created?

  1. From what previous works were the data drawn?
    none (source 1 of 2)
    U.S. Geological Survey, Unpublished Material, raw bathymetry data.

    Type_of_Source_Media: disc
    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)
    none (source 2 of 2)
    National Oceanic and Atmospheric Administration, National Ocean Service, Unpublished Material, CARIS HIPS database of bathymetry data.

    Type_of_Source_Media: disc
    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)
  2. How were the data generated, processed, and modified?
    Date: 2011 (process 1 of 9)
    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). Processing occurred in 2009, 2010, and 2011. Person who carried out this activity:
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700x2315 (voice)
    (508) 457-2310 (FAX)
    sackerman@usgs.gov
    Date: 2011 (process 2 of 9)
    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. Processing occurred in 2009, 2010, and 2011. Person who carried out this activity:
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2315 (voice)
    (508) 457-2310 (FAX)
    sackerman@usgs.gov
    Date: 02-May-2012 (process 3 of 9)
    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. Person who carried out this activity:
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2315 (voice)
    508-457-2310 (FAX)
    sackerman@usgs.gov
    Date: 02-May-2012 (process 4 of 9)
    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] Person who carried out this activity:
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2315 (voice)
    508-457-2310 (FAX)
    sackerman@usgs.gov
    Date: 2012 (process 5 of 9)
    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. Person who carried out this activity:
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2315 (voice)
    (508) 457-2310 (FAX)
    sackerman@usgs.gov
    Date: 08-Dec-2015 (process 6 of 9)
    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. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Rd
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 20-Jul-2018 (process 7 of 9)
    USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 18-Nov-2019 (process 8 of 9)
    Crossref DOI link was added as the first link in the metadata. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 08-Sep-2020 (process 9 of 9)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    National Oceanic and Atmospheric Administration, 2004, National Oceanic and Atmospheric Administration Data Acquisition and Processing Report to Accompany 2004 Hydrographic Surveys, NOAA Ship RUDE (s590): Data Acquisition and Process Report (DAPR) NOAA Ship RUDE (2004), National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC), National Geophysical Data Center, Boulder, CO.

    Online Links:

    NOAA (National Oceanic and Atmospheric Administration), 2004, H11319_BuzzBay [Descriptive Report, Basic Hydrographic Survey H11319, Buzzards Bay, Massachusetts: Descriptive Report (DR) H11319, National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC), National Geophysical Data Center, Boulder, CO.

    Online Links:


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    All attributes were checked in a consistent manner.
  2. How accurate are the geographic locations?
    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).
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    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/).
  5. How consistent are the relationships among the observations, including topology?
    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.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
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.
  1. Who distributes the data set? (Distributor 1 of 1)
    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2315 (voice)
    508-457-2310 (FAX)
    sackerman@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: 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. in format SHP (version ArcGIS 9.3) Esri polyline shapefile Size: 19
      Network links: http://pubs.usgs.gov/of/2012/1002/GIS/shapefile/BB_BathyTracklines.zip
      Media you can order: DVD-ROM (Density 4.75 GB) (format UDF)
    • Cost to order the data: none

  5. What hardware or software do I need in order to use the data set?
    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.

Who wrote the metadata?

Dates:
Last modified: 08-Sep-2020
Metadata author:
Seth Ackerman
U.S. Geological Survey
Geologist
384 Woods Hole Rd.
Woods Hole, MA
USA

508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

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