Deep-Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND)- DP01 (EK80)

Patterns in acoustically derived biological scatter through the water column will be collected with multi-frequency scientific echosounders (Simrad EK60) operating at 18kHz, 38kHz, 70kHz and 120kHz following protocols developed during the NOAA NRDA DAP data collection operations. Specifically, during each cruise, transducers will be installed on a rigid pole mounted to the side of the ship, and calibrated at sea for operating conditions following protocols developed by Dr. Boswell during the ONSAP/DAP cruises. The dynamics of the mesopelagic scattering community will be examined through the depth dependent scattering responses at both frequencies (18 and 38kHz) as well as through the difference between the mean volume backscattering strength (MVBS; in dB) at 18 kHz and 38 kHz (dMVBS(18-38)). In addition, scatterers in the upper water column (~150m) will be examined by analyzing the all four available frequencies. By integrating both methods, the magnitude of biological scattering at discrete-depth intervals will be classified into major taxonomic components (e.g., fluid-like crustaceans, swimbladdered fishes) based on resonant properties and behavior. The biological data and ship data collected during this cruise are available in GRIIDC datasets R4.x257.226:0001 and R4.x257.226:0003, respectively.
  • Cite as: Kevin Boswell, Florida International University (2015): Water Column Sonar Data Collection (DP01, EK80). National Centers for Environmental Information, NOAA. doi:10.7289/V5WD3XJS [access date]
gov.noaa.ngdc.mgg.wcd:DP01_EK80
Search Data
Distribution Formats
  • Simrad EK80 raw (.raw) format (Version: 1)
    • File Specification: Simrad EK80 raw files. See the Simrad EK80 interface specification manual for additional information.
Ordering Instructions Contact the NCEI Water Column Sonar Data Manager to order data
Distributor Distributor information not available
Dataset No POCs available for this dataset
Time Period 2015-05-01T20:08:07 to 2015-05-08T10:00:42
Spatial Bounding Box Coordinates
N: 29.06708
S: 28.4793
E: -87.34974
W: -88.04603
Spatial Coverage Map
General Documentation
Associated Resources
    Publication Dates
    • creation: 2015-05-01
    Dataset Progress Status Complete - production of the data has been completed
    Data Update Frequency Not planned
    Purpose o examine the spatial and temporal dynamics of deep sea nekton in the Gulf of Mexico through a multidisciplinary approach.
    Dataset Citation
    • Cite as: Kevin Boswell, Florida International University (2015): Water Column Sonar Data Collection (DP01, EK80). National Centers for Environmental Information, NOAA. doi:10.7289/V5WD3XJS [access date]
    Custodians
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    Resource Providers
    • Gulf of Mexico Research Initiative (GoMRI)
    Sponsors
    • Gulf of Mexico Research Initiative (GoMRI)
    Publishers
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    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
    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)
    • Gulf of Mexico
    Global Change Master Directory (GCMD) Location Keywords
    • GEOGRAPHIC REGION > GLOBAL
    • Vertical Location > VERTICAL LOCATION > SEA FLOOR
    Keywords
      Use Constraints
      • Cite as: Kevin Boswell, Florida International University (2015): Water Column Sonar Data Collection (DP01, EK80). National Centers for Environmental Information, NOAA. doi:10.7289/V5WD3XJS [access date]
      Access Constraints
      • Resource may not be available for up to one year after initial collection.
      Fees
      • Free
      Lineage information for: collectionHardware
      Lineage Statement Calibrated w/ calibration data
      Lineage information for: series
      Acquisition Information (collection)
      Operation
      • DP01_EK80
      Last Modified: 2017-05-30
      For questions about the information on this page, please email: wcd.info@noaa.gov