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Dataset Overview | National Centers for Environmental Information (NCEI)

EK60 Water Column Sonar Data Collected During RL1606

2016 Summer California Current Ecosystem CPS Survey (RL1606, EK60). The cruise sampled the California Current Ecosystem from San Diego, CA to Vancouver Island, BC, CA. Multi-frequency (18-, 38-, 70-, 120-, 200-, and 333-) General Purpose Transceivers and Wide Band Transceivers (Simrad EK60 GPTs and EK80 WBTs), were configured with split-beam transducers (ES18-11, ES38B, ES70-7C, ES120-7C, ES200-7C, ES333-7c, respectively). The transducers were mounted on the bottom of a retractable keel called a "centerboard". The keel was retracted (~ 5-m depth) during calibration, and in the intermediate position (~7-m depth) throughout the survey. Exceptions were made during shallow water operations, when the keel was retracted; or during times of heavy weather, when the keel was extended (~9-m depth) to provide extra stability. In addition, the Simrad ME70, MS70, and SX90 were used to sample the water column simultaneously using K-sync to sequence pinging between sounders and sonars. The EK80s were removed from the ship halfway through the survey on August 19 and resinstalled on September 19. EK80 data was collected in CW mode.
  • Cite as: Southwest Fisheries Science Center. 2016. 'EK60 Water Column Sonar Data Collected During RL1606'. NOAA National Centers for Environmental Information. doi:10.7289/V52F7KND [access date]
gov.noaa.ngdc.mgg.wcd:RL1606_EK60
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Distribution Formats
  • Simrad EK60 raw (.raw) format (Version: 1)
    • File Specification: Kongsberg/Simrad .raw files are generated by ME70, EK60 or ES60 instruments. They contain power and optionally angular position data with each beam/frequency identified by an independent channel. See the Simrad interface specification manual for further information. The .wcd files are generated by Kongsberg EM302 or EM122 instruments. See Kongsberg documentation for more information.
Ordering Instructions Contact the NCEI Water Column Sonar Data Manager to order data.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Water Column Sonar Data Manager
NOAA National Centers for Environmental Information
(303) 497-4742
wcd.info@noaa.gov
Time Period 2016-06-28T17:20:53 to 2016-09-24T00:29:12
Spatial Reference System urn:ogc:def:crs:EPSG::4326Vertical Datum: Unknown
Spatial Bounding Box Coordinates
West: -129.46203
East: -117.15315
South: 32.59865
North: 50.76075
Spatial Coverage Map
General Documentation
Associated Resources
    Publication Dates
    • creation: 2016-06-28
    • publication: 2017-09-24
    Dataset Progress Status Complete - production of the data has been completed
    Data Update Frequency Not planned
    Purpose The objectives of the survey were to: 1) acoustically map the distributions and estimate the abundances of (CPS), including, but not limited to Pacific sardine (Sardinops sagax), Northern anchovy (Engralus mordax), herring (Clupea pallasii), and Pacific (Scomber japonicus) and jack mackerel (Trachurus symmetricus); and krill (euphausiid spp.); 2) characterize the biotic and abiotic environments of these species, and investigate linkages; and 3) gather information regarding the animals' life history parameters, schooling and diel vertical migration (DVM) behaviors, and potential avoidance reactions to the survey vessel.
    Use Limitations
    • 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.
    Dataset Citation
    • Cite as: Southwest Fisheries Science Center. 2016. 'EK60 Water Column Sonar Data Collected During RL1606'. NOAA National Centers for Environmental Information. doi:10.7289/V52F7KND [access date]
    Cited Authors
    • DOC/NOAA/NMFS/SWFSC > Southwest Fisheries Science Center
    Principal Investigators
    • David Demer
      NMFS/SWFSC
    Custodians
    • NOAA National Centers for Environmental Information
    Publishers
    • NOAA National Centers for Environmental Information
    Theme keywords Global Change Master Directory (GCMD) Science Keywords
    • Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering
    • Earth Science > Oceans > Aquatic Sciences > Fisheries
    • Earth Science > Oceans > Ocean Acoustics
    • Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic
    • Earth Science > Biosphere > Ecosystems > Marine Ecosystems
    • Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
    • Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems
    • Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
    • Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
    Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    • DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce
    Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
    • In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
    Place keywords International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
    • North Pacific Ocean
    Global Change Master Directory (GCMD) Location Keywords
    • Vertical Location > Water Column
    Use Constraints
    • Cite as: Southwest Fisheries Science Center. 2016. 'EK60 Water Column Sonar Data Collected During RL1606'. NOAA National Centers for Environmental Information. doi:10.7289/V52F7KND [access date]
    • 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.
    Access Constraints
    • 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.
    • Resource may not be available for up to one year after initial collection.
    Fees
    • Free
    Lineage information for: series
    Processor
    • NMFS/SWFSC
    Lineage information for: series
    Lineage Statement EK60 was calibrated with standard sphere technique (Demer et al., 2015; Foote et al., 1987)
    Acquisition Information (collection)
    Instrument
    • Simrad EK60
    • Simrad ME70
    • Simrad EK60
    Platform
    • Reuben Lasker (RL)
    Operation
    • RL1606_EK60
    Last Modified: 2020-06-03
    For questions about the information on this page, please email: ncei.info@noaa.gov