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    • EK60 Water Column Sonar Data Collected During OS1209

    Metadata Updated: September 17, 2021

    Island Wake Hotspots. Subsurface features were sampled with multi-frequency acoustics, CTD profiles, pairovet and bongo nets sampling different components of the ichthyoplankton and zooplankton assemblages. Juvenile fishes and squid were sampled with an Isaacs-Kidd mid-water trawl (IKMT). Repeat passes of a glider upstream of the area at Point Conception provided detailed sections of temperature, salinity, fluorescence, velocity and acoustic backscatter. Surface plankton will be sampled with manta nets, the Continuous Underway Fish Egg Sampler, thermo-salinograph, and remote sensing. The wakes are expected to be relatively small, with complex sub-mesoscale structure, and strong temporal variability. The primary species focus of this study was small pelagic fish, rockfishes, and squids. However, the full ichthyoplankton community was counted according to usual protocols, and all species from the IKMT were identified, counted and preserved. Calibrated acoustic backscatter data were interpreted using catches from bongo nets and IKMT and predicted frequency-dependent scattering. CUFES data were enumerated and samples preserved according to normal protocols.

    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) September 2, 2012 (creation), October 22, 2018 (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) September 2, 2012 (creation), October 22, 2018 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.wcd:OS1209_EK60
    Access Constraints Cite as: Southwest Fisheries Science Center. 2012. 'EK60 Water Column Sonar Data Collected During OS1209'. NOAA National Centers for Environmental Information. https://doi.org/10.25921/drxs-hr18 [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 -117.33155
    Bbox North Lat 34.40796
    Bbox South Lat 32.68963
    Bbox West Long -120.65686
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 0e4a42dc-5117-4606-9f82-0b49e868adbb
    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": [[[-120.65686, 32.68963], [-117.33155, 32.68963], [-117.33155, 34.40796], [-120.65686, 34.40796], [-120.65686, 32.68963]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2012-09-02T20:20:16
    Temporal Extent End 2012-09-09T13:35:16

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