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    • EK60 Water Column Sonar Data Collected During SE1003

    Metadata Updated: September 17, 2021

    Oceanographic Survey in waters of the Northern Mariana Islands, Guam, and Micronesia (SE1003, EK60). The goals of the cruise were to collect acoustic backscatter and oceanographic data at the vicinity of CNMI, Guam, and in the northern part of Micronesia. Data collected consisted of CTD casts, trawl samples, and continuous monitoring of currents and biological acoustic backscatter. CTD cats were conducted at predetermined stations. CTDs were equipped with oxygen sensors and fluorometers, and water was sampled at discrete depths during each cast for nutrients and chloropigment determinations. Trawl operations were conducted at predetermined stations using an Isaacs Kidd midwater trawl at depths of the shallow sound scattering layer. Currents were continuously monitored using an RD Instruments Acoustic Doppler Current Profiler (ADCP) operating at 75 kHz frequency. Biological backscatter was recorded using an EK60 echosounder system along predetermined transects, operating at 38, 70, and 120 kHz frequencies.

    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.

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    Dates

    Metadata Date September 14, 2021
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 17, 2021
    Reference Date(s) March 20, 2010 (creation), February 1, 2015 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NGDC MGG Sonar Water Column

    Other Data Resources

    Additional Metadata

    Resource Type Series
    Metadata Date September 14, 2021
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 17, 2021
    Reference Date(s) March 20, 2010 (creation), February 1, 2015 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.wcd:SE1003_EK60
    Access Constraints Cite as: NOAA Pacific Islands Fisheries Science Center. 2010. 'EK60 Water Column Sonar Data Collected During SE1003'. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V5TQ5ZGJ [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 146.777210583
    Bbox North Lat 17.025333
    Bbox South Lat 9.95976666667
    Bbox West Long 143.559983333
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 5c3117da-cec9-4a04-8ca3-2c7627801487
    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.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[143.559983333, 9.95976666667], [146.777210583, 9.95976666667], [146.777210583, 17.025333], [143.559983333, 17.025333], [143.559983333, 9.95976666667]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2010-03-20T03:05:28
    Temporal Extent End 2010-04-11T21:35:03

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