Oceanographic Survey of Cross Seamount and Control Sites (OES0703L1, EK60)

The goals of the cruise were to collect acoustic backscatter and oceanographic data at Cross Seamount (18?43.285? N, longitude 158? 15.710? W), with an approximately 400 m deep plateau, and at control sites in the surrounding environment. 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 chloropigment determinations. Trawl operations were conducted at predetermined stations using a Cobb trawl at depths of the shallow (nighttime) and deep (day and nighttime) sound scattering layers. Currents were continuously monitored using a RD Instruments Acoustic Doppler Current Profiler (ADCP) operating at 75 kHz frequency. Biological backscatter were recorded using the EK60 echosounder system (38, & 120 kHz) along predetermined transects.
  • Cite as: Pacific Islands Fisheries Science Center (2007): Water Column Sonar Data Collection (OES0703L1, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5CR5R94 [access date]
gov.noaa.ngdc.mgg.wcd:OES0703L1_EK60
Search Data
Distribution Formats
  • Kongsberg/Simrad instrument files (.raw or .wcd) (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 Water Column Sonar Data Manager to order data
Distributor Chuck Anderson
Water Column Sonar Data Manager
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-4742
wcd.info@noaa.gov
Dataset Principal Investigator Reka Domokos
Research Oceanographer
PIFSC
808.725.5368
reka.domokos@noaa.gov
Time Period 2007-04-21T23:25:01 to 2007-05-11T21:55:52
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
N: 21.2795607744
S: 18.616
E: -155.93205
W: -158.4196
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • creation: 2007-04-21
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned
Purpose The scientific objectives of this cruise were to investigate the dynamic interactions of the North Equatorial Current in the lee of the Main Hawaiian Islands with the abrupt topography of Cross Seamount, and their effects on seamount associated organisms. During the cruise, surveys were conducted to study the effects of the mesoscale seamount environment on the distribution and biomass of bigeye tuna and its forage, micronekton.
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.
Dataset Citation
  • Cite as: Pacific Islands Fisheries Science Center (2007): Water Column Sonar Data Collection (OES0703L1, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5CR5R94 [access date]
Resource Providers

  • DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center
Sponsors
  • UHI/SOEST > School of Ocean and Earth Science and Technology
Points of Contact

  • DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center
Publishers
  • Publisher information not available.
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)
  • North Pacific Ocean
Global Change Master Directory (GCMD) Location Keywords
  • GEOGRAPHIC REGION > GLOBAL
  • Vertical Location > VERTICAL LOCATION > SEA FLOOR
Keywords
    Use Constraints
    • Cite as: Pacific Islands Fisheries Science Center (2007): Water Column Sonar Data Collection (OES0703L1, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5CR5R94 [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
    Processor
    • PIFSC
    Acquisition Information (collection)
    Instrument
    • Simrad EK60
    • SBE 911plus CTD
    • Sippican XBT/XSV
    Platform
    • Oscar Elton Sette (SE)
    Operation
    • OES0703L1_EK60
    Last Modified: 2017-05-30
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