Metadata Identifier: gov.noaa.ngdc.mgg.wcd:DE9809_EK500

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 EK500 Water Column Sonar Data Collected During DE9809 NEFSC 1998 Atlantic Herring Acoustic/Midwater Trawl Survey (DE9809, EK500). The NEFSC Atlantic herring acoustic survey is a fisheries independent survey that provides scientific data for Atlantic herring assessments in the U.S. mid-Atlantic and New England regions. The survey is conducted in the fall on pre-spawning and spawning herring primarily in the Georges Bank region, but with other historical sites in the Gulf of Maine surveyed. The survey is a systematic design with parallel transects oriented perpendicular to bathymetric features. Midwater trawl sites are selected on an ad hoc basis to sample acoustic backscatter attributed to Atlantic herring as well as backscatter by other organisms. The primary gear is multifrequency Simrad echosounders, but midwater trawl, CTD, and a host of other scientific sensor data are collected ancillary to the acoustic data.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 EK500 Water Column Sonar Data Collected During DE9809
    1998-08-26
    2015-12-01
DE9809_EK500
doi:10.7289/V5WH2MZ3
NCEI Metadata ID:gov.noaa.ngdc.mgg.wcd:DE9809_EK500
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 GCMD Instrument Keywords Global Change Master Directory (GCMD) Instrument Keywords
    2020-01-09
1 GCMD Location Keywords Global Change Master Directory (GCMD) Location Keywords
    2020-01-09
1 GCMD Science Keywords Global Change Master Directory (GCMD) Science Keywords
    2020-01-09
1 International DOI Foundation (IDF)
    1 IHO Sea Areas International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
      2010-08-24
    2 NOAA National Centers for Environmental Information
      1 NOAA Ship Delaware II
        2014-09-18
      1 Simrad EK500 Echosounder
        EK500
        1 Simrad EK60 Echosounder
          EK60
          1 Simrad ME70 Echosounder
            ME70
            1 Vertical Datum: Unknown
              1 World Geodetic System 1984
                2007-08-27
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              CI_Series

              none found
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              CI_ResponsibleParty

              Count Component Individual Organization Position Email Role Linkage
              1 resourceProvider https://epsg.org/crs_4326/WGS-84.html
              1 NEFSC DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center author
              1 Northeast Fisheries Science Center (operator) DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center pointOfContact
              1 NOAA/OMAO/MOC-A Marine Operations Center - Atlantic (owner) DOC/NOAA/OMAO/MOC-A > Marine Operations Center - Atlantic, NOAA Marine Operations, NOAA Office of Marine and Aviation Operations, NOAA, U.S. Department of Commerce David.A.Score@noaa.gov pointOfContact https://www.omao.noaa.gov/omao/marine-operations-center-atlantic-moc
              1 EPSG Registry European Petroleum Survey Group publisher https://epsg.org/home.html
              1 International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) resourceProvider https://iho.int/
              2 principleInvestigator - Michael Jech(chief scientist) Michael Jech DOC/NOAA/NMFS/NEFSC> Northeast Fisheries Science Center Research Fish Biologist michael.jech@noaa.gov principalInvestigator
              4 GCMD Landing Page NASA Goddard Space Flight Center, Earth Science Data and Information System custodian https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
              3 NOAA National Centers for Environmental Information, NCEI (pointOfContact) NOAA National Centers for Environmental Information ncei.info@noaa.gov pointOfContact https://www.ncei.noaa.gov/contact
              1 custodian - National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information custodian
              1 publisher - National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information publisher
              1 NCEI (distributor) NOAA National Centers for Environmental Information ncei.info@noaa.gov distributor https://www.ncei.noaa.gov/contact
              3 Simrad - Kongsberg Maritime AS contact@simrad.com resourceProvider https://www.kongsberg.com/contentassets/9bcb8e2fac0044e6a065f6aca5385db4/043774ad_ek500_installation_manual_english_complete.pdf
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              CI_OnlineResource

              Count Component Linkage Name Description Function
              1 http://maps.ngdc.noaa.gov/viewers/water_column_sonar/ Water Column Sonar Data Map Viewer Interactive map viewer to allow discovery and access to water column sonar data search
              1 https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information
              1 https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
              1 https://iho.int/ International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23) Publication of Sea Areas is maintained by IHO. information
              4 https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords 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. information
              1 https://www.kongsberg.com/contentassets/9bcb8e2fac0044e6a065f6aca5385db4/043774ad_ek500_installation_manual_english_complete.pdf Simrad EK500 Scientific echo sounder Information on the Simrad EK500 including file format documentation information
              3 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information
              1 https://www.ngdc.noaa.gov/mgg/wcd/ Water Column Sonar Data Archive Homepage Web page containing information on the water column sonar data archive. information
              1 https://www.omao.noaa.gov/omao/marine-operations-center-atlantic-moc Marine Operations Center - Atlantic NOAA Marine Operations Center-Atlantic (MOC-A) serves as a homeport for one NOAA survey ship and provides administrative, engineering, maintenance and logistical support to NOAA's Atlantic fleet. information
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              MD_Identifier or RS_Identifier

              Count Component Code
              1 DE9809
              2 DE9809_EK500
              1 Delaware II (DE)
              1 EK500
              1 EK60
              1 ME70
              1 NCEI Metadata ID:gov.noaa.ngdc.mgg.wcd:DE9809_EK500
              1 NEFSC Atlantic Herring Acoustic/Midwater Trawl Survey
              1 Simrad EK500
              1 Simrad EK60
              1 Simrad ME70
              1 Vertical Datum: Unknown
              1 doi:10.7289/V5WH2MZ3
              1 urn:ogc:def:crs:EPSG::4326
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              EX_Extent

              Bounding Box Temporal Extent
              Count Component Description West East North South Start End
              1 -70.595 -68.77583 43.26333 42.7105 1998-08-26T18:51:49 1998-09-03T10:31:41
              1 Woods Hole Oceanographic Institution
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              EX_GeographicBoundingBox

              Count Component West East North South
              1 -70.595 -68.77583 43.26333 42.7105
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              EX_TemporalExtent

              Count Component Start End
              1 1998-08-26T18:51:49 1998-09-03T10:31:41
              1
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              MD_Format

              Count Component Name Version specification
              1 Simrad EK500 data logged with BI500 system 1 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.
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              MD_Medium

              none found
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              MD_Constraints

              Count Component Use Limitation
              1 Raw Data Disclaiimer 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.
              1 No Copyright Not subject to copyright protection within the United States.
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              MD_ReferenceSystem

              Count Component Code Authority Title
              1 Vertical Datum: Unknown Vertical Datum: Unknown Vertical Datum: Unknown
              1 WGS84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
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              MD_GridSpatialRepresentation

              none found
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              MD_Georeferenceable or MI_Georeferenceable

              none found
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              MD_Georectified or MI_Georectified

              none found
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              MD_Dimension

              none found
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              MD_CoverageDescription or MI_CoverageDescription

              Count Component Attribute Description Content Type
              1 Trackline
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              MD_Band or MI_Band

              none found
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              MI_RangeElementDescription

              none found
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              MD_AggregateInformation

              Count Component Title Code Association Type Code
              1 DE9809 largerWorkCitation
              1 NEFSC Atlantic Herring Acoustic/Midwater Trawl Survey largerWorkCitation
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              LE_Source or LI_Source

              none found
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              LE_ProcessStep or LI_ProcessStep

              Count Component DateTime Description
              1 1998-08-26T18:51:49 Raw unprocessed data files
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              MI_Operation

              Count Component Code Type Status Description
              1 DE9809_EK500 completed
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              MI_Platform

              Count Component Code Description
              1 Delaware II (DE) Delaware II (DE) The NOAA Ship DELAWARE II conducts fishery and living marine resource research in support of NOAA's National Marine Fisheries Service (NMFS), Northeast Fisheries Science Center's (NEFSC) Woods Hole Laboratory in Woods Hole, MA. The ship's normal operating area is the Gulf of Maine, Georges Bank, and the continental shelf and slope from Southern New England to Cape Hatteras, NC. Typical assessment work includes groundfish assessment surveys and Marine Resources Monitoring, Assessment and Prediction (MARMAP) surveys. Research conducted from the DELAWARE II provides an understanding of the physical and biological processes that control year-class strength of key economical fish species. The vessel is operated by NOAA Marine and Aviation Operations.
              Unresolved Xlinks
              Delaware II (DE) at: gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:platform
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              MI_Instrument

              Count Component Code Type Description
              1 EK500 Simrad EK500 singlebeam
              1 Simrad EK60 Singlebeam Echosounder Simrad EK60 singlebeam
              1 Simrad ME70 Multibeam Echosounder Simrad ME70 multibeam
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