EK60 Water Column Sonar Data Collected During OS1209

Description

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.

Resources

Name Format Description Link
0 Web page containing information on the water column sonar data archive. https://www.ngdc.noaa.gov/mgg/wcd/
33 Publication of Sea Areas is maintained by IHO. http://www.iho-ohi.net/iho_pubs/standard/S-23/S23_1953.pdf
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 Interactive map viewer to allow discovery and access to water column sonar data https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=OS1209&instruments=EK60
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 AWS Cloud Storage provides additional public access to water column sonar data through the NOAA Big Data Project https://registry.opendata.aws/ncei-wcsd-archive/
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords

Tags

  • water column
  • vertical location
  • acoustic scattering
  • water column mapping system
  • north pacific ocean
  • benthic
  • ecosystems
  • nesdis
  • biosphere
  • bathymetry
  • in situ/laboratory instruments
  • oceans
  • national geophysical data center
  • noaa
  • marine ecosystems
  • aquatic sciences
  • u.s. department of commerce
  • profilers/sounders
  • earth science
  • acoustic sounders
  • national marine fisheries service
  • doc/noaa/nesdis/ngdc
  • bathymetry/seafloor topography
  • aquatic ecosystems
  • doc/noaa/nesdis/ncei
  • fisheries
  • doc/noaa/nmfs
  • pelagic
  • wcms
  • seafloor topography
  • national centers for environmental information
  • ocean acoustics

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