Back to Collection NOAA/NESDIS/NGDC/MGG/Sonar_Water_Column

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referenceSystemInfo
identificationInfo
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distributionInfo
dataQualityInfo
dataQualityInfo
dataQualityInfo
acquisitionInformation

EM122 Water Column Sonar Data Collected During AR16
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    fileIdentifier:  gov.noaa.ngdc.mgg.wcd:AR16_EM122
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) series
    hierarchyLevelName:  Water Column Sonar Series-Level Metadata
    contact:  (CI_ResponsibleParty)
        organisationName:  NOAA National Centers for Environmental Information
        contactInfo:  (CI_Contact)
            address:  (CI_Address)
                electronicMailAddress:  ncei.info@noaa.gov
            onlineResource:  (CI_OnlineResource)
                linkage: https://www.ncei.noaa.gov/contact
                name:  NCEI Contact Information
                description:  Information for contacts at NCEI.
                function:  (CI_OnLineFunctionCode) information
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2020-06-03
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
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    spatialRepresentationInfo:  (MD_VectorSpatialRepresentation)
        geometricObjects:  (MD_GeometricObjects)
            geometricObjectType:  (MD_GeometricObjectTypeCode) curve
            geometricObjectCount:  203
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  World Geodetic System 1984
                alternateTitle:  WGS 84
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                    date:  2007-08-27
                    dateType:  (CI_DateTypeCode) revision
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                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/crs_4326/WGS-84.html
                            name:  WGS 84
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                    role:  (CI_RoleCode) resourceProvider
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  European Petroleum Survey Group
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/home.html
                            name:  European Petroleum Survey Group Geodetic Parameter Registry
                            description:  Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
                            function:  (CI_OnLineFunctionCode) search
                    role:  (CI_RoleCode) publisher
            code:  urn:ogc:def:crs:EPSG::4326
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    referenceSystemInfo:  (MD_ReferenceSystem)
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            authority:  (CI_Citation)
                title:  Vertical Datum: Unknown
                date: (inapplicable)
            code:  Vertical Datum: Unknown
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  EM122 Water Column Sonar Data Collected During AR16
            date:  (CI_Date)
                date:  2017-05-05
                dateType:  (CI_DateTypeCode) creation
            date:  (CI_Date)
                date:  2017-08-07
                dateType:  (CI_DateTypeCode) publication
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NOAA National Centers for Environmental Information
                    date: (inapplicable)
                code:  AR16_EM122
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NOAA National Centers for Environmental Information
                    date: (inapplicable)
                code:  NCEI Metadata ID:gov.noaa.ngdc.mgg.wcd:AR16_EM122
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) custodian
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                individualName:  Benjamin Van Mooy
                organisationName:  Woods Hole Oceanographic Institution
                positionName:  Senior Scientist
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                    phone:  (CI_Telephone)
                        voice:  508-289-2322
                    address:  (CI_Address)
                        deliveryPoint:  266 Woods Hole Road, Mailstop 04
                        city:  Woods Hole
                        administrativeArea:  MA
                        postalCode:  02543
                        country:  USA
                        electronicMailAddress:  bvanmooy@whoi.edu
                role:  (CI_RoleCode) principalInvestigator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  Rolling Deck to Repository (R2R)
                role:  (CI_RoleCode) author
        abstract:  AR16_EM122
        purpose:  Redox Cycling of Phosphorus in the Western North Atlantic
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  ncei.info@noaa.gov
                onlineResource:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/contact
                    name:  NCEI Contact Information
                    description:  Information for contacts at NCEI.
                    function:  (CI_OnLineFunctionCode) information
            role:  (CI_RoleCode) pointOfContact
        pointOfContact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            positionName:  Water Column Sonar Data Manager
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  (303) 497-4742
                address:  (CI_Address)
                    deliveryPoint:  325 Broadway, Mail Code E/NE42
                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  wcd.info@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) notPlanned
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering
            keyword:  Earth Science > Oceans > Aquatic Sciences > Fisheries
            keyword:  Earth Science > Oceans > Ocean Acoustics
            keyword:  Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic
            keyword:  Earth Science > Biosphere > Ecosystems > Marine Ecosystems
            keyword:  Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
            keyword:  Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems
            keyword:  Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
            keyword:  Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Science Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            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.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  North Atlantic Ocean
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
                date:  (CI_Date)
                    date:  2010-08-24
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://iho.int/
                            name:  International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
                            description:  Publication of Sea Areas is maintained by IHO.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) resourceProvider
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            keyword:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
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                title:  Global Change Master Directory (GCMD) Data Center Keywords
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                    date:  2020-01-09
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                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            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.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Vertical Location > Water Column
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Location Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            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.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
            type:  (MD_KeywordTypeCode) instrument
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Instrument Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            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.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: Rolling Deck to Repository (R2R). 2017. 'EM122 Water Column Sonar Data Collected During AR16'. NOAA National Centers for Environmental Information. [access date]
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  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.
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
        resourceConstraints:  (MD_Constraints)
            useLimitation:  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.
        resourceConstraints:  (MD_Constraints)
            useLimitation:  Not subject to copyright protection within the United States.
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Resource may not be available for up to one year after initial collection.
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetIdentifier:  (MD_Identifier)
                code: https://doi.org/10.7284/907449
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) operation
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetIdentifier:  (MD_Identifier)
                code:  AR16
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) operation
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) oceans
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -70.68018
                eastBoundLongitude:  -64.06974
                southBoundLatitude:  28.99769
                northBoundLatitude:  40.33257
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2017-05-05T01:49:34
                    endPosition:  2017-05-21T08:39:59
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    contentInfo:  (MI_CoverageDescription)
        attributeDescription:
          RecordType:  Trackline
        contentType:  (MD_CoverageContentTypeCode) physicalMeasurement
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    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                contactInfo:  (CI_Contact)
                    address:  (CI_Address)
                        electronicMailAddress:  ncei.info@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov/contact
                        name:  NCEI Contact Information
                        description:  Information for contacts at NCEI.
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  Free
                orderingInstructions:  Contact the NCEI Water Column Sonar Data Manager to order data.
            distributorFormat:  (MD_Format)
                name:  Kongsberg EM122 water column data (.wcd) format
                version:  1
                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.
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: http://maps.ngdc.noaa.gov/viewers/water_column_sonar/
                    protocol:  HTTPS
                    name:  Water Column Sonar Data Map Viewer
                    description:  Interactive map viewer to allow discovery and access to water column sonar data
                    function:  (CI_OnLineFunctionCode) search
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/mgg/wcd/
                    protocol:  HTTPS
                    name:  Water Column Sonar Data Archive Homepage
                    description:  Web page containing information on the water column sonar data archive.
                    function:  (CI_OnLineFunctionCode) information
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) collectionHardware
            levelDescription:  (MD_ScopeDescription)
                other:  Instrument calibration information
        lineage:  (LI_Lineage)
            statement:  Unknown
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) series
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy
            result:  (DQ_ConformanceResult)
                specification: (inapplicable)
                explanation:  Positional accuracy dependent on navigation GPS, ship motion correction, and sound velocity profile accuracy.
                pass:  true
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            result:  (DQ_ConformanceResult)
                specification: (inapplicable)
                explanation:  Vertical accuracy is dependent on navigation GPS and ship motion corrections.
                pass:  true
        lineage:  (LI_Lineage)
            processStep:  (LI_ProcessStep)
                description:  Raw unprocessed data files
                dateTime:
                  DateTime:  2017-05-05T01:49:34
                processor:  (CI_ResponsibleParty)
                    individualName:  Benjamin Van Mooy
                    organisationName:  Woods Hole Oceanographic Institution
                    positionName:  Senior Scientist
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  508-289-2322
                        address:  (CI_Address)
                            deliveryPoint:  266 Woods Hole Road, Mailstop 04
                            city:  Woods Hole
                            administrativeArea:  MA
                            postalCode:  02543
                            country:  USA
                            electronicMailAddress:  bvanmooy@whoi.edu
                    role:  (CI_RoleCode) principalInvestigator
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) series
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            citation:  (CI_Citation)
                title:  Kongsberg EM122 Multibeam Echosounder
                date: (unknown)
                identifier:  (MD_Identifier)
                    code:  EM122
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Kongsberg Maritime
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/01FB0F22974EA50FC125715E002B2143?OpenDocument
                            name:  Kongsberg EM122 information
                            description:  Information on the Kongsberg EM122 multibeam sonar system
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) resourceProvider
            identifier:  (MD_Identifier)
                code:  Kongsberg EM122
            type:  Multibeam Echosounder
            description:  EM 122 multibeam echosounder is a high performance echosounder for deep water mapping with up to 288 simultaneous beams. The EM 122 is designed to perform seabed mapping to full ocean depth with an unsurpassed resolution, coverage and accuracy. The system is cost effective, reliable, and easily operated. The design of the EM 122 is based on more than 50 years of hydrographic experience with echo sounders, sonars and underwater positioning for civilian and military use. It is the latest model in a series of deep sea multibeam echo sounders started with the EM 12 in 1990 and followed by the EM 121 and the EM 120, of which about 40 systems are operational. It uses the same transducers as in the EM 120 but with new electronics and software. Compared with the EM 120 the EM 122 has up to four times the resolution in terms of sounding density through inclusion of multiping capability and more than twice the number of detections per swath. High density signal processing is a major improvement, to keep the acoustic footprint size small even for the outer beams in the swath. In typical ocean depths a sounding spacing of about 50 m across and along is achievable. The achievable swath width of the EM 122 is in the order of 30,000 m, or about 25% more than possible with the EM 120. This is obtained by using long FM chirps which gains about 15 dB in signal to noise ratio compared to CW pulses. The EM 122 is a complete system. All necessary sensor interfaces, data displays for quality control and sensor calibration, seabed visualization, and data logging are a standard part of the system, as is integrated seabed acoustical imaging capability (side scan). Including a higher frequency multibeam echo sounder such as EM 710 with the EM 122 system can give a total system solution meeting the strictest IHO requirements for all water depths. As proven with the EM 120, an accuracy of better than 0.2% of depth in deep waters is readily achievable with the EM 122.
        operation:  (MI_Operation)
            identifier:  (MD_Identifier)
                code:  AR16_EM122
            status:  (MD_ProgressCode) completed
            parentOperation: (inapplicable)
        platform:  (MI_Platform)
            citation:  (CI_Citation)
                title:  R/V Neil Armstrong (AGOR-27)
                date: (inapplicable)
            identifier:  (MD_Identifier)
                code:  Armstrong (AR)
            description:  The R/V Neil Armstrong supports advanced oceanographic research in tropical and temperate oceans around the world. It also serves the academic community's ongoing need for a general-purpose ship based on the East Coast of the United States. The pivotal role that the North Atlantic and Arctic Oceans plays in Earth’s climate results in an increase in efforts to observe these areas, as well new efforts to study North Atlantic ecosystems and their sustainability. R/V Neil Armstrong is be uniquely equipped and positioned to enable scientists from around the world to reveal new details about this critical part of the global ocean.
            sponsor:  (CI_ResponsibleParty)
                individualName:
                organisationName:  DOD/USNAVY/ONR> U.S. Navy Office of Naval Research
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  703-696-5031
                    address:  (CI_Address)
                        deliveryPoint:  875 North Randolph Street
                        city:  Arlingto
                        administrativeArea:  VA
                        postalCode:  22203
                        country:  USA
                        electronicMailAddress:  onrpublicaffairs@navy.mil
                role:  (CI_RoleCode) pointOfContact
            sponsor:  (CI_ResponsibleParty)
                organisationName:  Woods Hole Oceanographic Institution
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  508-289-2252
                    address:  (CI_Address)
                        deliveryPoint:  266 Woods Hole Road
                        city:  Woods Hole
                        administrativeArea:  MA
                        postalCode:  02543
                        country:  USA
                        electronicMailAddress:  marineops@whoi.edu
                    hoursOfService:  8am-5pm, Monday through Friday
                    contactInstructions:
                role:  (CI_RoleCode) resourceProvider
            instrument:  (MI_Instrument)
                citation:  (CI_Citation)
                    title:  Kongsberg EM710 Multibeam Echosounder
                    date: (unknown)
                    identifier:  (MD_Identifier)
                        code:  EM710
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  Kongsberg Maritime
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/993132242751F5EDC1256FA300360548?OpenDocument
                        role:  (CI_RoleCode) resourceProvider
                identifier:  (MD_Identifier)
                    code:  Kongsberg EM710
                type:  Multibeam Echosounder
                description:  The EM 710 multibeam echosounder is a high to very high resolution (up to 800 soundings per ping) seabed mapping system capable of meeting all relevant survey standards. The system configuration can be tailored to the user's requirement, allowing for choice of beam widths as well as transmission modes. The minimum survey depth is from less than 3 meters below the transducers, and the maximum depth is approximately 2000 meters, somewhat dependant upon array size. Across track coverage (maximum swath width 140º) is up to 5.5 times water depth, to a maximum survey depth more than 2000 meters. The along track beamwidth depends upon the chosen transmit transducer configuration with 0.5º, 1º and 2º available as standard. The receive beam width is either 1º or 2º depending on the chosen receive transducer. The EM 710 operates at sonar frequencies in the 70 to 100 kHz range. The transmit fan is divided into three sectors to maximize range capability, but also to suppress interference from multiples of strong bottom echoes. The sectors are transmitted sequentially within each ping, and uses distinct frequencies or waveforms.
            instrument:  (MI_Instrument)
                identifier:  (MD_Identifier)
                    code:  Kongsberg EM122
                type:  multibeam echosounder
            instrument:  (MI_Instrument)
                citation:  (CI_Citation)
                    title:  Simrad EK80 Echosounder
                    date: (inapplicable)
                    identifier:  (MD_Identifier)
                        code:  EK80
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  Simrad - Kongsberg Maritime AS
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://www.kongsberg.com/maritime/products/ocean-science/ocean-science/es_scientific/ek80software/
                                name:  Simrad Ek80 information web page
                                description:  Page contains general information on the Ek80 and has links to details on operation and file formats
                                function:  (CI_OnLineFunctionCode) information
                        role:  (CI_RoleCode) resourceProvider
                identifier:  (MD_Identifier)
                    code:  Simrad EK80
                type:  echosounder
                description:  The Simrad EK80 is the most modern "high end" split beam scientific echo sounder in the fishery scientific market. Based on more than 60 years of research and development in close collaboration with leading marine scientists this wide band echo sounder system has succeeded the famous EK60, which became an international standard for fish stock assessment. The Simrad EK80 can operate a large number of frequencies simultaneously ranging from 10 to 500 kHz. A wide selection of high quality accurate transducers is available.