GLORIA sidescan sonar mosaic

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Frequently anticipated questions:

What does this data set describe?

Title: GLORIA sidescan sonar mosaic
Abstract:
This GIS overlay is a component of the U. S Geological Survey, Woods Hole Field Center's, Gulf of Mexico ArcView GIS database. The Gulf of Mexico GIS database is intended to organize and display USGS held data and provide on-line (WWW) access to the data and/or metadata.
Supplemental_Information:
This image has a white background surrounding the sidescan sonar mosaic. The white background is more practical for user's wishing to utilize the image for illustration purposes.
  1. How might this data set be cited?
    Paskevich, Valerie, 2000, GLORIA sidescan sonar mosaic: Open-File Report 2000-19, USGS Coastal and Marine Geology Team, U.S. Geological Survey, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Paskevich, Valerie F., 2000, Gulf of Mexico GLORIA sidescan sonar geologic interpretation: ArcView data coverages: Open-File Report 2000-19, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details:
    Suggested citation: Paskevich, V.F., 2000, Gulf of Mexico GLORIA sidescan sonar geologic interpretation—ArcView data coverages: U.S. Geological Survey Open-File Report 2000-19, https://doi.org/10.3133/ofr0019.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -96
    East_Bounding_Coordinate: -82
    North_Bounding_Coordinate: 29.5
    South_Bounding_Coordinate: 23
  3. What does it look like?
    https://pubs.usgs.gov/of/2000/of00-019/htmldocs/images/browse/compos.gif (250m image of the GLORIA sidescan sonar mosaic on white background for the Gulf of Mexico)
    GIF
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 02-Feb-1982
    Currentness_Reference:
    data collection
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: remote-sensing image
  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 2848 x 5635, type Pixel
    2. What coordinate system is used to represent geographic features?
      The map projection used is Albers Conical Equal Area.
      Projection parameters:
      Standard_Parallel: 29.5
      Standard_Parallel: 45.5
      Longitude_of_Central_Meridian: -089.000000
      Latitude_of_Projection_Origin: +00.000000
      False_Easting: 0
      False_Northing: 0
      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 250
      Ordinates (y-coordinates) are specified to the nearest 250
      Planar coordinates are specified in Meters
      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview: No attributes are associated with the image.
    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)
    • Valerie Paskevich
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    U. S. Geological Survey
    Attn: Valerie Paskevich
    Computer Specialist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2281 (voice)
    (508) 457-2281 (FAX)
    vpaskevich@usgs.gov

Why was the data set created?

This ArcView GIS layer is a 250 m version of the composite Gulf of Mexico GLORIA sidescan sonar mosaic.

How was the data set created?

  1. From what previous works were the data drawn?
    OFR96-657 (source 1 of 2)
    Paskevich(comp.), Valerie, 19961008, Digital Mosaics of the GLORIA Sidescan Sonar Data of the Gulf of Mexico: U.S. Geological Survey Open-File Report OFR96-657, Coastal and Marine Geology Program, Woods Hole, MA, U.S. Geological Survey.

    Online Links:

    Other_Citation_Details:
    The original metadata had a link to a computer in Woods Hole (kai) that is no longer available. It's unclear if the version of the mosaic on that one is the revised image indicated in the edition. The kai data are no longer available.
    This is part of the following larger work.

    various(comp.), 1987, Atlas of the U.S. Exclusive Economic Zone, Gulf of Mexico and eastern Caribbean areas: U.S. Geological Survey Miscellaneous Investigations I-1864-A, U.S. Geological Survey, Office of Marine Geology, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    The 16 individual 50m mosaics were combined to create the 250m composite Gulf of Mexico GLORIA mosaic.
    I-1864-A,B (source 2 of 2)
    U.S. Geological Survey(comp.), National Oceanic and Atmospheric Administration, and National Aeronautics and Space Administration, 19880323, GLORIA Data: Gulf of Mexico: GLORIA Data: Gulf of Mexico Gloria01, U.S. Geological Survey, Office of Energy and Marine Geology, U.S. Geological Survey, Reston, VA.

    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    Raw imagery of GLORIA data may be retrieved from this CD-ROM. The user must note the number of pixels (samples) and lines contained in the data set to convert the raw imagery to a useable image format. The information can be found in the 'lbl' file associated with the image file.
  2. How were the data generated, processed, and modified?
    Date: 04-Sep-1998 (process 1 of 4)
    The 16 individual 50 m GLORIA digital sidescan sonar mosaics were re-sampled to 250 m and combined to create an overview digital mosaic of the Gulf of Mexico. Person who carried out this activity:
    U. S. Geological Survey
    Attn: Valerie Paskevich
    Computer Specialist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2281 (voice)
    (508) 457-2310 (FAX)
    vpaskevich@usgs.gov
    Data sources used in this process:
    • OFR96-657
    • mos01.tif-mos16.tif
    Data sources produced in this process:
    • compos.pix
    Date: 04-Sep-1998 (process 2 of 4)
    The completed 250 m Gulf of Mexico GLORIA mosaic was exported as a geotiff image with an associated ARC "world" file. Person who carried out this activity:
    U. S. Geological Survey
    Attn: Valerie Paskevich
    Computer Specialist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2281 (voice)
    (508) 457-2310 (FAX)
    vpaskevich@usgs.gov
    Data sources used in this process:
    • compos.pix
    Data sources produced in this process:
    • compos.tif
    Date: 22-Aug-2023 (process 3 of 4)
    Edited the metadata to remove errors flagged by MP. Filled out the citation information including adding the edition, suggested citation, adding the DOI link and a link to the data page. Added USGS Thesaurus and ISO 19115 Topic Category theme keywords. Added the link to the browse graphic. Removed unrequired elements with a value of "unknown". Indicated in some required elements that information was unavailable from the original metadata. Added links to the source citations. Additional small edits to the metadata were made to be consistent with current standards. Updated the distribution liability to an approved FSP disclaimer statement. Updated the distribution format and provided links to the data. The metadata date was updated, but not the metadata contact. The metadata contact email was updated to a valid link with an explanation in the contact instructions (20230822). The metadata available from a harvester may supersede metadata available from the publication. 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
    USA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 06-Aug-2024 (process 4 of 4)
    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?

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

  1. How well have the observations been checked?
    no attributes associated with the image
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    complete
  5. How consistent are the relationships among the observations, including topology?
    not available from the original metadata

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 U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U. S. Geological Survey
    Attn: Valerie Paskevich
    Computer Specialist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2281 (voice)
    (508) 457-2310 (FAX)
    vpaskevich@usgs.gov
  2. What's the catalog number I need to order this data set? compos.tif
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    Access to the data and information contained on this CD-ROM was developed using the HyperText Markup Language (HTML) utilized by the World Wide Web (WWW) project. Development of the CD-ROM ocumentation and user interface in HTML allows a user to access the information by using a variety of WWW information browsers (i.e. NCSA Mosaic, Netscape, Microsoft Explorer) to facilitate browsing and locating information and data. To access the information contained on this disk with a WWW client browser, open the file 'intro.htm' at the top level directory of this CD-ROM with your selected browser.
    This CD-ROM should be readable by a variety of operating systems including Windows 95/98/NT, Macintosh and UNIX.
    An image viewer or image processing or GIS software package capable of importing a GEOTIFF format file. If the georeferencing information cannot be imported, the user may wish to download the georeferencing information contained in a separate file, glo250m.txt and compos.txt in the data/imagery/aea/georep directory.

Who wrote the metadata?

Dates:
Last modified: 06-Aug-2024
Metadata author:
U. S. Geological Survey
Attn: Valerie Paskevich
Computer Specialist
384 Woods Hole Rd.
Woods Hole, MA
USA

(508) 5488700 x2281 (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 person is no longer with USGS.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (CSDGM version 2)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2000-019/comps_meta.faq.html>
Generated by mp version 2.9.51 on Tue Aug 6 15:07:13 2024