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EM122 Water Column Sonar Data Collected During AT26-02

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: April 12, 2026 | Last Modified: 2014-07-15T00:00:00.000+00:00
Cascadia Initiative Year 3, LEG 3 (At26-02, EM122). Recover 30 Lamont Doherty Earth Observatory Ocean-bottom Seismometers (OBSs) of 3 different types: •10 TRM shallow-water OBSs with Trillium compact 3-component absolute pressure gauge installed at depths from 200-1000m (nominal). Recovered using remotely operated vehicle Jason. •10 Trawl-Resistant Mount (TRM) shallow-water OBS with Trillium compact 3-component seismometer, absolute pressure gauge (APG), acoustic release/pop-up buoy with Jason backup. •10 LDEO deep water OBSs with APG. Recover by sending an acoustic release command to drop the anchor. OBS then floats to the surface a nominal rate of 50m/min. Referred to as LDEO-DW below. •Iftime allows, discover and recover 2 Woods Hole Oceanographic Institution deep water OBSs. Additional Activities: Acquire swath bathymetry, including water column data, in transit between all stations and port. Acquire other underway data (e.g. meterology, acoustic doppler current profiler).

Resources

6 resources available

  • Water Column Sonar Data Map Viewer

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  • Water Column Sonar Data Archive Homepage

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  • Global Change Master Directory (GCMD) Keywords

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  • International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)

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  • Argo project website

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  • NCEI Contact Information

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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

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.info@noaa.gov"
}
describedByType application/octet-steam
description Cascadia Initiative Year 3, LEG 3 (At26-02, EM122). Recover 30 Lamont Doherty Earth Observatory Ocean-bottom Seismometers (OBSs) of 3 different types: •10 TRM shallow-water OBSs with Trillium compact 3-component absolute pressure gauge installed at depths from 200-1000m (nominal). Recovered using remotely operated vehicle Jason. •10 Trawl-Resistant Mount (TRM) shallow-water OBS with Trillium compact 3-component seismometer, absolute pressure gauge (APG), acoustic release/pop-up buoy with Jason backup. •10 LDEO deep water OBSs with APG. Recover by sending an acoustic release command to drop the anchor. OBS then floats to the surface a nominal rate of 50m/min. Referred to as LDEO-DW below. •Iftime allows, discover and recover 2 Woods Hole Oceanographic Institution deep water OBSs. Additional Activities: Acquire swath bathymetry, including water column data, in transit between all stations and port. Acquire other underway data (e.g. meterology, acoustic doppler current profiler).
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Water Column Sonar Data Map Viewer",
    "accessURL": "http://maps.ngdc.noaa.gov/viewers/water_column_sonar/",
    "mediaType": "text/html",
    "description": "Interactive map viewer to allow discovery and access to water column sonar data",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Water Column Sonar Data Archive Homepage",
    "accessURL": "https://www.ngdc.noaa.gov/mgg/wcd/",
    "mediaType": "text/html",
    "description": "Web page containing information on the water column sonar data archive.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Change Master Directory (GCMD) Keywords",
    "accessURL": "https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords",
    "mediaType": "text/html",
    "description": "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.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)",
    "accessURL": "https://iho.int/",
    "mediaType": "text/html",
    "description": "Publication of Sea Areas is maintained by IHO.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Argo project website",
    "accessURL": "http://argo.whoi.edu/",
    "mediaType": "text/html",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Contact Information",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "Information for contacts at NCEI.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/Sonar_Water_Column/iso/xml/AT26-02_EM122.xml
issued 2013-06-25T00:00:00.000+00:00
keyword 
                                            [
  "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",
  "North Pacific Ocean",
  "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",
  "Vertical Location > Water Column",
  "In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System"
]
landingPage http://argo.whoi.edu/
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2014-07-15T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
rights otherRestrictions, otherRestrictions
spatial -124.2691466,40.25193455,-126.9894938,46.0328801
temporal 2013-06-25T20:15:08+00:00/2013-07-08T19:06:33+00:00
title EM122 Water Column Sonar Data Collected During AT26-02

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