Mapping Field Trial I Mendocino Ridge (EX0903, EM302) aboard the NOAA Ship OKEANOS EXPLORER over Mendocino Ridge located off the coast of Northern California, USA

The exhaustive study of the U.S. data holdings pertinent to the formulation of U.S. potential claims of an extended continental shelf under the United Nations Convention of the Law of the Sea (UNCLOS) (Mayer, et al., 2002) did not identify this area as one of the regions where new bathymetric surveys are needed. However, the ECS Task Force considered the Mendocino Ridge might be a potential extension for the U.S. The Mayer et al. (2002) report recommended that multibeam echosounder (MBES) data are needed to rigorously define (1) the foot of the slope (FoS), a parameter of the two UNCLOS-stipulated formula lines, and (2) the 2500-m isobath, a parameter of one of the UNCLOS-stipulated cutoff lines. Both of these parameters, the first a precise geodetic isobath and second a geomorphic zone, are used to define an extended continental shelf claim. The Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC) of the University of New Hampshire was directed by the U.S. Congress, through funding to the U.S. National Oceanic and Atmospheric Administration (NOAA) to conduct the new surveys and archive the resultant data.
  • Cite as: NOAA Office of Ocean Exploration and Research (2009): Water Column Sonar Data Collection (EX0903, EM302). National Centers for Environmental Information, NOAA. doi: 10.7289/V53B5X4B [access date].
gov.noaa.ngdc.mgg.wcd:EX0903_EM302
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 No POCs available for this dataset
Dataset Principal Investigator Mashkoor Malik
301-734-1015
mashkoor.malik@noaa.gov
Time Period 2009-05-06T00:16:00 to 2009-05-17T05:36:15
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
N: 40.5356142
S: 37.78584795
E: -122.6988208
W: -128.0018884
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • creation: 2009-05-06
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned
Purpose This cruise had two separate objectives; the primary objective was to test the new EM302 multibeam system aboard the NOAA Ship Okeanos Explorer. If the tests prove successful, the secondary objective was to map the eastern Mendocino Ridge (Fig. 1) for the U.S. Law of the Sea bathymetry program.
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: NOAA Office of Ocean Exploration and Research (2009): Water Column Sonar Data Collection (EX0903, EM302). National Centers for Environmental Information, NOAA. doi: 10.7289/V53B5X4B [access date].
Resource Providers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information
Points of Contact
  • NOAA/OAR/OER - Ocean Exploration and Research
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
  • 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
  • GEOGRAPHIC REGION > GLOBAL
  • Vertical Location > VERTICAL LOCATION > SEA FLOOR
Keywords Ocean Exploration and Research (OER) Program Discovery Keywords
  • expedition
  • exploration
  • explorer
  • marine education
  • noaa
  • ocean
  • ocean discovery
  • ocean education
  • ocean exploration
  • ocean exploration and research
  • OER
  • ocean literacy
  • ocean research
  • science
  • scientific mission
  • scientific research
  • sea
  • stewardship
  • systematic exploration
  • technology
  • transformational research
  • undersea
  • underwater
Keywords
    Keywords
      Use Constraints
      • Cite as: NOAA Office of Ocean Exploration and Research (2009): Water Column Sonar Data Collection (EX0903, EM302). National Centers for Environmental Information, NOAA. doi: 10.7289/V53B5X4B [access date].
      Fees
      • Free
      Lineage information for: collectionHardware
      Lineage Statement Unknown
      Lineage information for: series
      Acquisition Information (collection)
      Instrument
      • Kongsberg EM302
      • Kongsberg EM302
      • Simrad EK60
      • Knudsen CHIRP 3260
      • RM Young 61202V
      • RM Young 41382VC
      • Sippican XBT/XSV
      • Eppley PIR
      • C-NAV GPS
      • Turner 10AU Fluorometer
      Platform
      • Okeanos Explorer (EX)
      Operation
      • EX0903_EM302
      Last Modified: 2017-05-30
      For questions about the information on this page, please email: wcd.info@noaa.gov