Interpretation of Bottom Features from National Oceanic and Atmospheric Administration (NOAA) Survey H12324 in Narragansett Bay (Geographic, WGS 84)

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Frequently anticipated questions:

What does this data set describe?

Title:
Interpretation of Bottom Features from National Oceanic and Atmospheric Administration (NOAA) Survey H12324 in Narragansett Bay (Geographic, WGS 84)
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is producing detailed geologic maps of the coastal sea floor. Bathymetric data, originally collected by NOAA for charting purposes, provide a framework for research and management activities along southern Narragansett Bay, show the composition and terrain of the seabed, and provide information on sediment transport and benthic habitat. During September 2014, bottom photographs and surficial sediment data were acquired as part of a ground-truth reconnaissance survey of this area. Interpretations were derived from the multibeam-echosounder, sedimentary, and photographic data collected in Narragansett Bay. For more information on the ground-truth survey see https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-046-FA.
  1. How might this data set be cited?
    U.S. Geological Survey, 2015, Interpretation of Bottom Features from National Oceanic and Atmospheric Administration (NOAA) Survey H12324 in Narragansett Bay (Geographic, WGS 84): Open-File Report 2015-1149, 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.

    McMullen, K.Y., Poppe, L.J., Blackwood, D.S., Nardi, M.J., and Andring, M.A., 2015, Sea-floor morphology and sedimentary environments in southern Narragansett Bay, Rhode Island: Open-File Report 2015-1149, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: DVD-ROM
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -71.434364
    East_Bounding_Coordinate: -71.301588
    North_Bounding_Coordinate: 41.472073
    South_Bounding_Coordinate: 41.423755
  3. What does it look like?
    https://pubs.usgs.gov/of/2015/1149/data/interpret/h12324interp.gif (GIF)
    Thumbnail image showing the interpreted bottom features within NOAA survey H12324
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2015
    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 (288)
    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?
    h12324interp
    Shapefile Attribute Table (Source: Esri)
    FID
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: Esri) Coordinates defining the features.
    Id
    Internal feature number (Source: Esri)
    Range of values
    Minimum:0
    Maximum:0
    FEATURES
    Interpretation of features from NOAA H12324 multibeam-bathymetry data and USGS 2014-046-FA sediment and photograph data (Source: compiler)
    ValueDefinition
    rockyAreas of rocks on the sea floor, characterized by objects up to several meters in diameter and height based on bathymetric and photographic data.
    sand wavesAreas of megaripples and sand waves on the sea floor, characterized by wave-shaped bedforms in the bathymetry data.
    scour depressionAreas where the sea floor has been eroded.
    shipwreckLocation of a shipwreck on the sea floor.
    Entity_and_Attribute_Overview:
    Shapefile containing interpretations of the sea floor in the Narragansett Bay study area. Shapefile shows distributions of rocky areas, sand waves, scour depressions, and shipwrecks. Polygons may overlap, as more than one feature may be present in a location. Areas within the study area that are not outlined are areas of predominately undisturbed modern marine sediments.
    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)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    U.S. Geological Survey
    Attn: Katherine McMullen
    Field and Laboratory Technician
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2277 (voice)
    508-457-2310 (FAX)
    kmcmullen@usgs.gov

Why was the data set created?

To release interpretations of bottom features based on bathymetry data collected during NOAA survey H12324 and sediment samples and bottom photography collected during USGS survey 2014-046-FA in Narragansett Bay in a geographic, WGS 84 coordinate system.

How was the data set created?

  1. From what previous works were the data drawn?
    bathy (source 1 of 2)
    National Ocean Survey, National Oceanic and Atmospheric Administration, Unknown, H12324 bathymetry.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    The original acoustic data acquired during NOAA survey H12324 aboard the NOAA vessel S3002 collected from June 27, 2011 to October 11, 2011.
    samples and photos (source 2 of 2)
    U.S. Geological Survey, 2015, Sediment and photographic data from USGS survey 2014-046-FA in H12324 study area.

    Type_of_Source_Media: sediment samples and photographs
    Source_Contribution:
    Sediment samples and bottom photography collected during USGS survey 2014-046-FA between September 15-16, 2014.
  2. How were the data generated, processed, and modified?
    Date: 2015 (process 1 of 5)
    The geographic GeoTIFF image of the multibeam data from survey H12324 and the point data layers from bottom photography and grain-size analyses of sediments collected from this survey area were imported into the ArcMap 9.3.1. Bottom features were interpreted based on the bathymetry, bottom photography, and textural analyses as well as sediment data from Poppe and others, 2003. The individually interpreted features (i.e. sand waves) were outlined using the available graphic tools. The NOAA descriptive report was also used to interpret shipwrecks. Person who carried out this activity:
    Lawrence Poppe, emeritus
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2314 (voice)
    508-457-2310 (FAX)
    lpoppe@usgs.gov
    Data sources used in this process:
    • h12324_geo.tif
    • 2014-046_324seddata.shp
    • 2014-046_324botphotos.shp
    Data sources produced in this process:
    • h12324interp.shp
    Date: 10-May-2017 (process 2 of 5)
    Edits to the metadata were made to fix any errors that MP v 2.9.36 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.). Attempted to modify http to https where appropriate. 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 Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 20-Jul-2018 (process 3 of 5)
    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 4 of 5)
    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 5 of 5)
    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?
    McMullen, K.Y., Poppe, L.J., Signell, R.P., Denny, J.F., Crocker, J.M., Beaver, A.L., and Schattgen, P.T., 2007, Surficial geology in central Narragansett Bay, Rhode Island: Interpretations of sidescan sonar and multibeam bathymetry: Open-File Report 2006-1199, U.S. Geological Survey, Reston, VA.

    Online Links:

    Poppe, L.J., Paskevich, V.F., Williams, S.J., Hastings, M.E., Kelley, J.T., Belknap, D.F., Ward, L.G., FitzGerald, D.M., and Larsen, P.F., 2003, Surficial sediment data from the Gulf of Maine, Georges Bank, and vicinity-A GIS compilation: Open-File Report 03-001, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: CD-ROM
    Nardi, Matthew, 2011, H12324: Descriptive Report H12324, National Ocean Survey, National Oceanic and Atmospheric Administration, Atlantic Hydrographic Branch, Norfolk, VA.

    Online Links:

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 for the sediment samples, photography, and bathymetry data, which the interpretation was based on, was by differential GPS.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    All collected data were processed and used to produce this dataset.
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for consistency were performed on this data. Polygons may overlap, as more than one feature may be present in a location. Areas within the study area that are not outlined are areas of predominately undisturbed modern marine sediments.

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:
The interpretation was completed at map scales greater than 1:10,000, and is not intended for use with larger map scales. 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)
    Katherine McMullen
    U.S. Geological Survey
    Field and Laboratory Technician
    384 Woods Hole Road
    Woods Hole, MA
    USA

    508-548-8700 x2277 (voice)
    508-457-2310 (FAX)
    kmcmullen@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data - h12324interp.zip
  3. What legal disclaimers am I supposed to read?
    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), 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 or NOAA 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 user must be capable of uncompressing WinZip files. Also, these data are available in Environmental Systems Research Institute (Esri) shapefile format. The user must have software capable of reading this format. A free data viewer, ArcGIS Explorer, capable of displaying the data is available from Esri at www.esri.com.

Who wrote the metadata?

Dates:
Last modified: 16-Nov-2021
Metadata author:
U.S. Geological Survey
Attn: Katherine McMullen
Field and Laboratory Technician
384 Woods Hole Road
Woods Hole, MA

508-548-8700 x2277 (voice)
508-457-2310 (FAX)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.
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/ofr2015-1149/h12324interpmeta.faq.html>
Generated by mp version 2.9.50 on Tue Nov 16 10:06:53 2021