H11361_OUTLINE.SHP: Outline of the Acoustic Data Collected During National Oceanic and Atmospheric Administration (NOAA) Survey H11361 (Geographic)

Metadata also available as Outline | Text

Frequently-anticipated questions:

What does this data set describe?

Title:
H11361_OUTLINE.SHP: Outline of the Acoustic Data Collected During National Oceanic and Atmospheric Administration (NOAA) Survey H11361 (Geographic)
Abstract:
The U.S. Geological Survey, in cooperation with the National Oceanic and Atmospheric Administration and the Connecticut Department of Environmental Protection, has produced detailed geologic maps of the sea floor in Long Island Sound, a major East Coast estuary surrounded by the most densely populated region of the United States. These studies have built upon cooperative research with the State of Connecticut that was initiated in 1982. The current phase of this research program is directed toward studies of sea-floor sediment distribution, processes that control sediment distribution, nearshore environmental concerns, and the relation of benthic community structures to the sea-floor geology.
  1. How should this data set be cited?

    U.S. Geological Survey, 2007, H11361_OUTLINE.SHP: Outline of the Acoustic Data Collected During National Oceanic and Atmospheric Administration (NOAA) Survey H11361 (Geographic): Open-File Report 2007-1191, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Poppe, L.J., Denny, J.F., Williams, S.J., Moser, M.S., Forfinski, N.A., Stewart, H.F., and Doran, E.F., 2007, The Geology of Six Mile Reef, Eastern Long Island Sound: Open-File Report 2007-1191, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -72.542828
    East_Bounding_Coordinate: -72.396231
    North_Bounding_Coordinate: 41.221784
    South_Bounding_Coordinate: 41.144777

  3. What does it look like?

    <http://pubs.usgs.gov/of/2007/1191/data/h11361/outline/h11361_outline.gif> (GIF)
    Thumbnail image showing the outline of acoustic data collected during NOAA survey H11361

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2007
    Currentness_Reference: publication date

  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):

      • G-polygon (1)
      It contains the following raster data types:
      • Dimensions 9194 x 6799 x 1, type Pixel

    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 North American Datum of 1983.
      The ellipsoid used is WGS84.
      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?

    h11361_outline

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    ID


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    U.S. Geological Survey
    c/o Larry Poppe
    Geologist
    384 Woods Hole Road
    Woods Hole, MA 02543-1598

    508-548-8700 x2314 (voice)
    508-457-2310 (FAX)
    lpoppe@usgs.gov

Why was the data set created?

To release an outline of the multibeam bathymetric data acquired during NOAA survey H11361, eastern Long Island Sound, in geographic.

How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    Type_of_Source_Media: DVD-ROM
    Source_Contribution:
    The original acoustic data acquired during NOAA survey H11361 aboard the NOAA ship Thomas Jefferson.

  2. How were the data generated, processed, and modified?

    (process 1 of 1)
    The geographic image of the multibeam bathymetry from NOAA survey H11361 was imported into the ArcView GIS project view. The mosaic area was outlined using the available graphic tools then converted to a shapefile.

    Person who carried out this activity:

    Larry Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA 02543

    508-548-8700 (x2314) (voice)
    508-457-2310 (FAX)
    lpoppe@usgs.gov

    Data sources used in this process:
    • h11361_2mgeo_mb.tif

    Data sources produced in this process:

    • h11361_outline.shp
    • h11361_outline.shx
    • h11361_outline.dbf

  3. What similar or related data should the user be aware of?

    Poppe, L.J., Williams, S.J., Moser, M.S., Forfinski, N.A., Stewart, H.F., and Doran, E.F., 2007, Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound: Journal of Coastal Research v. 23, no. 6.

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?

    Navigation was by differential GPS

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    This data layer shows the extent and location of the area surveyed during NOAA cruise H11361.

  5. How consistent are the relationships among the observations, including topology?

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 are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the originator of this information.

  1. Who distributes the data set? (Distributor 1 of 1)

    Larry Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA 02543-1598

    508-548-8700 x2314 (voice)
    508-457-2310 (FAX)

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although this data set has been used by the USGS, no warranty, expressed or implied, is made by the U.S. Geological Survey (USGS) as to the accuracy of the data and/or related materials. 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?

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

    These data are available in Environmental Systems Research Institute (ESRI) shapefile format. 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 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: 17-Aug-2007
Metadata author:
U.S. Geological Survey
c/o Larry Poppe
Geologist
384 Woods Hole Road
Woods Hole, MA 02543-1598

508-548-8700 x2314 (voice)
508-457-2310 (FAX)

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Fri Aug 17 08:41:26 2007