10-m Bathymetry grid of Vineyard and western Nantucket Sounds produced from lead-line and single-beam sonar soundings, swath-interferometric, multibeam, and lidar datasets (Esri binary grid, UTM Zone 19N, WGS84)

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Frequently anticipated questions:

What does this data set describe?

Title:
10-m Bathymetry grid of Vineyard and western Nantucket Sounds produced from lead-line and single-beam sonar soundings, swath-interferometric, multibeam, and lidar datasets (Esri binary grid, UTM Zone 19N, WGS84)
Abstract:
Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts.
  1. How might this data set be cited?
    Baldwin, Wayne, 2016, 10-m Bathymetry grid of Vineyard and western Nantucket Sounds produced from lead-line and single-beam sonar soundings, swath-interferometric, multibeam, and lidar datasets (Esri binary grid, UTM Zone 19N, WGS84): Open-File Report 2016-1119, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Baldwin, Wayne E., Foster, David S., Pendleton, Elizabeth A., Barnhardt, Walter A., Schwab, William C., Andrews, Brian D., and Ackerman, Seth D., 2016, Shallow Geology, Sea-Floor Texture, and Physiographic Zones of Vineyard and western Nantucket Sounds, Massachusetts: Open-File Report 2016-1119, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -71.035443
    East_Bounding_Coordinate: -70.428111
    North_Bounding_Coordinate: 41.561895
    South_Bounding_Coordinate: 41.319300
  3. What does it look like?
    https://pubs.usgs.gov/of/2016/1119/GIS_catalog/SourceData/bathy/vns10m_navd88.png (PNG)
    Bathymetric grid
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 1938
    Ending_Date: 31-Aug-2011
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: raster digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Raster data set. It contains the following raster data types:
      • Dimensions 2594 x 5024 x 1, type Grid Cell
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 19
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -69.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000
      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 10.000000
      Ordinates (y-coordinates) are specified to the nearest 10.000000
      Planar coordinates are specified in meters
      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.
      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: North American Vertical Datum of 1988
      Depth_Resolution: 0.1
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Implicit coordinate
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    There are no attributes associated with this Esri ArcRaster Grid. Pixel values represent bathymetric depths in meters referenced to the North American Vertical Datum of 1988, and range from -0.1 to -32.8 m.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

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

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov

Why was the data set created?

This bathymetric grid was created as a single continuous surface for the sea floor of Vineyard and western Nantucket Sounds. These data helped define the sediment texture and distribution maps presented as interpretive data layers in USGS OFR 2016-1119

How was the data set created?

  1. From what previous works were the data drawn?
    Poppe and others, 2007 (source 1 of 10)
    Poppe, L.J., Ackerman, S.D., Foster, D.S., Blackwood, D.S., Butman, B., Moser, M.S., and Stewart, H.F., 2007, Sea-floor character and surface processes in the vicinity of Quicks Hole, Elizabeth Islands, Massachusetts: Open-File Report 2006-1357, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This publication provides the source multibeam bathymetry for the Quicks Hole area. Two 29-foot launches deployed from the NOAA Ship Thomas Jefferson were used to acquire bathymetric and backscatter data during 2004. The multibeam bathymetric data were collected with hull-mounted 455-kHz RESON 8125 and 240-kHz RESON 8101 systems. The sidescan-sonar data were acquired with a hull-mounted Klein 5250 system operating at 100 kHz. Sediment samples and bottom photos were collected aboard the R/V Rafael with a modified Van Veen grab sampler and SEABOSS, respectively.
    Poppe and others, 2010 (source 2 of 10)
    Poppe, L.J., McMullen, K.Y., Foster, D.S., Blackwood, D.S., Williams, S.J., Ackerman, S.D., Moser, M.S., and Glomb, K.A., 2010, Geological interpretation of the sea floor offshore of Edgartown, Massachusetts: Open-File Report 2009-1001, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This publication provides the source geophysical (backscatter and bathymetry) and bottom photographs and sediment samples in the vicinity of Edgartown. Two 29-foot launches deployed from the NOAA Ship Thomas Jefferson were used to acquire bathymetric and backscatter data during 2004. The multibeam bathymetric data were collected with hull-mounted 455-kHz RESON 8125 and 240-kHz RESON 8101 systems. The sidescan-sonar data were acquired with a hull-mounted Klein 5250 system operating at 100 kHz. Sediment samples and bottom photos were collected aboard the R/V Rafael with a modified Van Veen grab sampler and SEABOSS, respectively.
    Pendleton and others, 2012 (source 3 of 10)
    Pendleton, E.A., Twichell, D.C., Foster, D.S., Worley, C.R, Irwin, B.J., and Danforth, W.W., 2012, High-resolution geophysical data from the sea floor surrounding the Western Elizabeth Islands, Massachusetts: Open-File Report 2011-1184, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This report provided swath bathymetry for the area of Vineyard Sound surrounding the western Elizabeth Islands. Surveying was conducted aboard the RV Rafael in September 2010. Interferometric-sonar, sidescan-sonar, and chirp seismic-reflection systems were deployed simultaneously during the cruise. Bathymetric sounding data were collected with an SEA SWATHplus 234-kilohertz (kHz) interferometric sonar system. Sidescan-sonar (acoustic-backscatter) data were acquired with a Klein 3000 dual-frequency (100 and 500 kHz) sidescan-sonar system.
    Andrews and others, 2014 (source 4 of 10)
    Andrews, B.D., Ackerman, S.D., Baldwin, W.E., Foster, D.S., and Schwab, W.C., 2014, High-Resolution Geophysical Data from the Inner Continental Shelf: Vineyard Sound, Massachusetts: Open-File Report 2012-1006, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This report provided swath bathymetry for Vineyard and western Nantucket Sounds. The mapping was conducted during research cruises aboard the Megan T. Miller (2009 and 2010) and the Scarlett Isabella (2011). Bathymetric data were acquired using a Systems Engineering and Assessment, Ltd. (SEA) SWATHplus-M 234-kilohertz (kHz) interferometric sonar system; acoustic backscatter data were collected with a Klein 3000 dual-frequency sidescan-sonar (132 and 445 kHz).
    Pendleton and others, 2014 (source 5 of 10)
    Pendleton, E.A., Andrews, B.D., Danforth, W.W., and Foster, D.S., 2014, High-resolution geophysical data collected aboard the U.S. Geological Survey research vessel Rafael to supplement existing datasets from Buzzards Bay and Vineyard Sound, Massachusetts: Open-File Report 2013-1020, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This report provided swath bathymetry for shallow zones along the nearshore and across Middle Ground, L'Hommediue, Hedge Fence, and Squash Meadow shoals within Vineyard and western Nantucket Sounds. These areas were surveyed with the RV Rafael in 2011. Swath bathymetry data were collected with an SEA SWATHplus 234-kilohertz (kHz) interferometric sonar system. Sidescan-sonar (acoustic-backscatter) data were acquired with a Klein 3000 dual-frequency (100 and 500 kHz) sidescan-sonar system.
    Poppe and others, 2008 (source 6 of 10)
    Poppe, L.J., McMullen, K.Y., Foster, D.S., Blackwood, D.S., Williams, S.J., Ackerman, S.D., Barnum, S.R., and Brennan, R.T., 2008, Sea-floor character and sedimentary processes in the vicinity of Woods Hole, Massachusetts: Open File Report 2008-1004, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This publication provides multibeam bathymetry for Woods Hole. Two 29-foot launches deployed from the NOAA Ship Whiting were used to acquire bathymetric and backscatter data during 2001. The bathymetric data were collected with a hull-mounted 240-kHz RESON 8101 shallow-water system aboard launch 1005. The sidescan-sonar data were acquired with a hull-mounted Klein T-5000 system operating at 455 kHz aboard launch 1014.
    NOAA, 2008 (source 7 of 10)
    National Oceanic and Atmospheric Administration, and Survey, National Ocean, 2008, Descriptive report, navigable area survey H11920, Vineyard Sound, Massachusetts, Gay Head to Cedar Tree Neck: Descriptive Report H11920, National Oceanographic and Atmospheric Administration - National Ocean Survey, Norfolk, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    The Bathymetry Attributed Grid (BAG) files accompanying this publication provide the source bathymetry data for portions of Vineyard Sound around the Menemsha Bight. Two 29-foot launches deployed from the NOAA Ship Thomas Jefferson were used to acquire bathymetry during 2008 using hull-mounted 455-kHz RESON 8125 and 240-kHz RESON 8101 systems.
    NOAA, 2008 (source 8 of 10)
    National Oceanic and Atmospheric Administration, and Survey, National Ocean, 2008, Descriptive report, navigable area survey H11921, Vineyard Sound, Massachusetts, Sow and Pigs reef to Quicks Hole: Descriptive Report H11921, National Oceanographic and Atmospheric Administration - National Ocean Survey, Norfolk, VA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    The BAG files accompanying this publication provide multibeam bathymetry for portions of Vineyard Sound around Cuttyhunk Island and Quicks Hole. Two 29-foot launches deployed from the NOAA Ship Thomas Jefferson were used to acquire bathymetry during 2008 using hull-mounted 455-kHz RESON 8125 and 240-kHz RESON 8101 systems.
    USACE-JABLTCX, 2009 (source 9 of 10)
    U.S. Army Corps of Engineers - Joint Airborne Lidar Bathymetry Center of Expertise, 2009, 2005 - 2007 US Army Corps of Engineers (USACE) Topo/Bathy Lidar: Maine, Massachusetts, and Rhode Island: NOAA National Ocean Service (NOS), Coastal Services Center (CSC), Charleston, SC.

    Online Links:

    Type_of_Source_Media: digital point data
    Source_Contribution:
    The source lidar data for the very nearshore (< -5 m) region along the northern shoreline of Vineyard and western Nantucket Sounds. Lidar (Light Detection and Ranging) data were acquired with a SHOALS-1000T (for hydrographic & topographic data) using the Joint Airborne Joint Airborne LiDAR Bathymetry Center of Expertise (JALBTCX) lidar plane. These data are now publically available in LAS lidar format via NOAA's Digital Coast website.
    NOAA Single-Beam Soundings (source 10 of 10)
    NOAA National Geophysical Data Center, 2015, NOS Hydrographic Survey Data.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    These data include NOAA lead-line and single-beam sonar soundings, which were used to cover areas where no swath bathymetry or lidar data exist.
  2. How were the data generated, processed, and modified?
    Date: 2014 (process 1 of 9)
    Collected and prepared non-USGS source datasets: NOAA data from NOS hydrographic surveys in the 1900s (lead-line and single-beam soundings) were downloaded from the NGDC website individually (http://maps.ngdc.noaa.gov/viewers/bathymetry/) in XYZ ASCII format; the data are referenced to Geographic NAD83 and Mean Lower Low Water. Data from NOAA NOS hydrographic surveys conducted since 2000 were also downloaded from the NGDC website. The 2000 era data were in either XYZ or BAG format, and referenced to UTM Zone 19N, and Mean Lower Low Water. The following NOAA NOS survey data were used: 1930s - H06348, H06349, H06350, H06468; 1940's - H06533; 1950s - H08170; 1960s - H08820, H08821, H08902, H08903, H08904; 1970s - H09645, H09646; 2000s - H11920, H11921. Datasets obtained in BAG format were imported into Fledermaus (v7.4.0) then exported to XYZ text format. USACE JALBTCX lidar data were obtained online from the NOAA Coastal Services Center Digital Coast Data Access Viewer, which provided an ftp download of a subset of the bathymetric lidar data within a defined area of interest. The data were delivered in XYZ format, and referenced to Geographic NAD83 and NAVD88. XYZ coordinates referenced to NAD 83 were projected to UTM Zone 19N using proj (v4.8.0). Person who carried out this activity:
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
    Data sources used in this process:
    • NOAA single-beam soundings; NOAA, 2008; USACE-JABLTCX; 2014
    Date: 2014 (process 2 of 9)
    Collected and prepared USGS source datasets: For swath bathymetry data sources from previously published USGS Open File Reports (including 2006-1357, 2008-1004, 2009-1001, 2012-1006, 2011-1184, and 2013-1020), XYZ formatted text files were exported from the same Caris Base surfaces used to export Esri format grids for publications. The Esri format grids can be downloaded from the publications listed in the Source Citations. They are referenced to UTM Zone 19N, and Mean Lower Low Water. Person who carried out this activity:
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
    Data sources used in this process:
    • Poppe and others, 2007; Poppe and others, 2008; Poppe and others, 2010; Pendleton and others, 2012; Andrews and others, 2013; Pendleton and others, 2014
    Date: 2014 (process 3 of 9)
    Using NOAA VDatum (v3.2), all of the source datasets referenced to tidal datums were converted from MLLW to NAVD88 vertical datum Person who carried out this activity:
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
    Data sources used in this process:
    • All sources referenced to tidal datums
    Date: 2014 (process 4 of 9)
    Evaluated source data overlap and created subsets for contribution to composite surface: Overlap of the swath bathymetry and lidar datasets was evaluated using polygon feature classes representing the areal outlines of the published grids and points. Point feature retention was determined by the following preferential hierarchy; 1) USGS swath-interferometric data (2012-1006, 2011-1184, and 2013-1020), 2) NOAA-NOS multibeam data (from USGS Open File Reports 2006-1357, 2008-1004, 2009-1001, and NOS Descriptive Reports H11920, H11921), 3) USACE-JABLTCX Lidar, and 4) NOS leadline and single-beam. Polygon outlines of higher-ranked source datasets were used to spatially select coincident points from lower-ranked XYZ feature datasets and delete them. After redundant source XYZ feature data were eliminated, the remaining subsets were imported to an ArcGIS (v9.3) geodatabase as point feature classes. Person who carried out this activity:
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
    Data sources used in this process:
    • all bathymetry sources
    Date: 2014 (process 5 of 9)
    An ArcGIS (9.3.1) Terrain Dataset was created (ArcToolbox > 3D Analyst Tools > Terrain > Create Terrain), all of the contributing point feature datasets and a polygon feature encompassing the input points (used as a hard clip) were added to the terrain (ArcToolbox > 3D Analyst Tools > Terrain > Add Feature Class to Terrain), and the terrain was constructed (ArcToolbox > 3D Analyst Tools > Terrain > Build Terrain). Person who carried out this activity:
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
    Data sources used in this process:
    • bathymetric point features contributing to composite and encompassing polygon feature
    Date: 2014 (process 6 of 9)
    The composite bathymetry was converted from the Terrain Dataset to a 10 meter per pixel, floating point Esri Grid (vns10m_navd88) using the natural neighbors interpolation method (ArcToolbox > 3D Analyst Tools > Conversion > From Terrain > Terrain to Raster). During the conversion, the polygon area encompassing the input points was specified to clip the extent of the output grid (Environmental Settings > Raster Analysis Settings > Mask) Person who carried out this activity:
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
    Data sources used in this process:
    • Composite bathymetry terrain and encompassing polygon feature
    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: 31-Jan-2019 (process 8 of 9)
    Fixed a broken link and added the DOI link. 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?
    U.S. Geological Survey, 2015, Geologic Mapping of the Seafloor Offshore of Massachusetts: U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details:
    Geologic mapping of the Massachusetts inner continental shelf is a cooperative effort that was initiated in 2003 by the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). The National Oceanic and Atmospheric Administration (NOAA-NOS) is also an important partner and contributes hydrographic data that are integrated into the maps. The overall goal of this cooperative is to determine the geologic framework of the sea floor inside the 3-mile limit of State waters, using high-resolution geophysical techniques, sediment sampling, and sea-floor photography. These topographic and bathymetric source data related to the composite topographic and bathymetric grid are cited in detail in the source citation section of this metadata file.

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

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
    The horizontal accuracy of the source multibeam bathymetry (DGPS) is reported at +/- 3 meters. The horizontal accuracy of the swath bathymetry (DGPS and/or RTK-GPS) is conservatively estimated to be +/- 10 meters. The lidar data were collected to meet the +/- 3-meter accuracy specification. Horizontal accuracy for lead-line and single-beam sonar soundings are not documented. This composite topographic and bathymetric grid is assumed to be horizontally accurate to within 20 meters, as additional errors could have been introduced during resampling, vertical and horizontal reprojections, and interpolation. See USGS Open File Reports and NOAA survey descriptive reports for individual survey positioning methods.
  3. How accurate are the heights or depths?
    The vertical accuracy for NOAA lead-line and single-beam sonar soundings are not documented. NOAA survey methods and processing of sounding data are in descriptive reports. All XYZ sounding data downloaded from NGDC are in tenths of meters. The vertical accuracy of the source multibeam bathymetry (RESON SeaBat 8101) is reported at +/- 30 to 50 cm. The vertical accuracy of the swath bathymetry is estimated to be +/- 10 to 60 cm. The lidar data were collected to meet the +/- 30-cm accuracy specification. This composite topographic and bathymetric grid is assumed to be vertically accurate to within 1-meter, as additional errors could have been introduced during resampling, vertical and horizontal reprojections, and interpolation.
  4. Where are the gaps in the data? What is missing?
    This grid includes lead-line soundings, single-beam sonar, swath interferometric, multibeam, and lidar data collected during several surveys in Vineyard and western Nantucket Sounds. The input grids can be downloaded by visiting the publications listed in the Source Information.
  5. How consistent are the relationships among the observations, including topology?
    This bathymetric grid was created from several smaller bathymetry and lidar datasets that were processed and published in various formats and datums (see Source Information for the individual input data). NOAA single-beam sonar soundings and lead-line soundings were merged with the swath bathymetry and lidar. Bathymetric source datasets that were referenced to tidal datums (mean lower low water) were transformed to the North American Vertical Datum of 1988 (NAVD 88) using VDATUM (version 3.2). Individual datasets were imported into ArcGIS, evaluated for overlap and edited to subsets (generally on the basis of source quality, sounding density, and temporal relevance), compiled into a terrain model, then exported to an interpolated grid at 10 meters per pixel using the Natural Neighbors algorithm. The final output bathymetric DEM is composed of the best available bathymetric data for Vineyard and western Nantucket Sounds at the time of this publication.

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:
Not to be used for navigation. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
  1. Who distributes the data set? (Distributor 1 of 1)
    Wayne Baldwin
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2226 (voice)
    508-457-2310 (FAX)
    wbaldwin@usgs.gov
  2. What's the catalog number I need to order this data set? vns10m_navd88.zip from USGS Open File report 2016-1119. WinZip V. 14.5 file contains bathymetry from Vineyard and western Nantucket Sounds, MA and the associated metadata.
  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 U.S. Geological Survey 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?
  5. What hardware or software do I need in order to use the data set?
    The grid contained in the ZIP file is available as an Esri binary grid. To utilize this data, the user must have a GIS software package capable of reading an Esri binary grid.

Who wrote the metadata?

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

508-548-8700 x2226 (voice)
508-457-2310 (FAX)
wbaldwin@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/ofr2016-1119/vns10m_navd88.faq.html>
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