Kona Integrated Ecosystem Assessment Survey (SE1104, EK60)

This cruise accomplished the following objectives: Oceanographic data were collected from a total of 25 CTD casts while continuous TSG and ADCP measurements were taken along a predefined grid off the west coast of Hawaii to assess the influence of physical dynamics on the region's biological productivity. CTD-mounted fluorometer measurements were carried out by two fluorometers. Chlorophyll was measured for ten discrete samples per CTD using a bench top Turner 10-AU fluorometer. Water samples were preserved for post-cruise flow cytometry to determine phytoplankton size structure. Biological backscatter was monitored using the EK60 echosounder system, both during trawl operations and along 17 acoustic transects (including at least one daytime and one nighttime transit of each transect). Twelve nighttime oblique mid-water trawls were conducted, with replicate trawls at each of six sites. These trawls all targeted the shallow sound scattering layer. Data on cetacean distribution, school size, and school composition were collected with a towed passive acoustic array on 14 transects, including both a daytime and nighttime transit of each transect. Daytime visual cetacean surveys were conducted to help develop habitat envelope models for the Kona region. Fourteen casts of a DIDSON imaging sonar were conducted to collect high resolution information on the density of high sonic scattering layers.
  • Cite as: Pacific Islands Fisheries Science Center (2011): Water Column Sonar Data Collection (SE1104, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5FJ2DR7 [access date]
gov.noaa.ngdc.mgg.wcd:SE1104_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 Evan Howell
Research Oceanographer
PIFSC

evan.howell@noaa.gov
Time Period 2011-07-02T00:00:00 to 2011-07-13T00:00:00
Spatial Bounding Box Coordinates
N: 20.106049945212
S: 19.2256000486427
E: -155.913810019342
W: -156.679269967658
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • creation: 2011-07-02
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned
Purpose The scientific objectives of this cruise are to collect information to describe the physical, chemical, and oceanographic environment as well as observe cetacean activity along the west coast of Hawaii as support for the monitoring component of the NOAA Kona Region IEA. The proposed survey grid will allow comparison of oceanographic features between the Kohala shelf region to the north and the deeper offshore regiono to the south as well as near shore and offshore.
Use Limitations
  • Not subject to copyright protection within the United States.
Dataset Citation
  • Cite as: Pacific Islands Fisheries Science Center (2011): Water Column Sonar Data Collection (SE1104, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5FJ2DR7 [access date]
Custodians
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Resource Providers
  • Dataset contact information not available
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • 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
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
  • North Pacific Ocean
Global Change Master Directory (GCMD) Location Keywords
  • GEOGRAPHIC REGION > GLOBAL
  • Vertical Location > VERTICAL LOCATION > SEA FLOOR
Use Constraints
  • Cite as: Pacific Islands Fisheries Science Center (2011): Water Column Sonar Data Collection (SE1104, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5FJ2DR7 [access date]
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: collectionHardware
Lineage Statement Uncalibrated w/calibration data
Lineage information for: series
Processor
  • PIFSC
Acquisition Information (collection)
Instrument
  • Simrad EK60
Operation
  • SE1104_EK60
Last Modified: 2017-10-02
For questions about the information on this page, please email: wcd.info@noaa.gov