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    • EM302 Water Column Sonar Data Collected During EX0903

    Metadata Updated: August 18, 2023

    The exhaustive study of the U.S. data holdings pertinent to the formulation of U.S. potential claims of an extended continental shelf under the United Nations Convention of the Law of the Sea (UNCLOS) (Mayer, et al., 2002) did not identify this area as one of the regions where new bathymetric surveys are needed. However, the ECS Task Force considered the Mendocino Ridge might be a potential extension for the U.S. The Mayer et al. (2002) report recommended that multibeam echosounder (MBES) data are needed to rigorously define (1) the foot of the slope (FoS), a parameter of the two UNCLOS-stipulated formula lines, and (2) the 2500-m isobath, a parameter of one of the UNCLOS-stipulated cutoff lines. Both of these parameters, the first a precise geodetic isobath and second a geomorphic zone, are used to define an extended continental shelf claim. The Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC) of the University of New Hampshire was directed by the U.S. Congress, through funding to the U.S. National Oceanic and Atmospheric Administration (NOAA) to conduct the new surveys and archive the resultant data.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date August 16, 2023
    Metadata Created Date November 12, 2020
    Metadata Updated Date August 18, 2023
    Reference Date(s) May 6, 2009 (creation), August 15, 2014 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NGDC MGG Sonar Water Column

    Other Data Resources

    Additional Metadata

    Resource Type Series
    Metadata Date August 16, 2023
    Metadata Created Date November 12, 2020
    Metadata Updated Date August 18, 2023
    Reference Date(s) May 6, 2009 (creation), August 15, 2014 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.wcd:EX0903_EM302
    Access Constraints Cite as: NOAA Ocean Exploration. 2009. 'EM302 Water Column Sonar Data Collected During EX0903'. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V53B5X4B [access date], Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose., Resource may not be available for up to one year after initial collection.
    Bbox East Long -122.6988208
    Bbox North Lat 40.5356142
    Bbox South Lat 37.78584795
    Bbox West Long -128.0018884
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id b2270b73-394d-44d6-b9be-e3e6e9b89815
    Harvest Source Id ab8b0290-e4db-4a00-89f2-4e427c2054b2
    Harvest Source Title NGDC MGG Sonar Water Column
    Licence These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., Not subject to copyright protection within the United States.
    Lineage Unknown
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-128.0018884, 37.78584795], [-122.6988208, 37.78584795], [-122.6988208, 40.5356142], [-128.0018884, 40.5356142], [-128.0018884, 37.78584795]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2009-05-06T00:16:00
    Temporal Extent End 2009-05-17T05:36:15

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