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

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referenceSystemInfo
identificationInfo
distributionInfo
dataQualityInfo
dataQualityInfo
dataQualityInfo
acquisitionInformation

FK140307 (EM710)
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fileIdentifier: gov.noaa.ngdc.mgg.wcd:FK140307_EM710
language: eng; USA
characterSet: (MD_CharacterSetCode)utf8
hierarchyLevel: (MD_ScopeCode)series
hierarchyLevelName: Water Column Sonar Series-Level Metadata
contact: (CI_ResponsibleParty)
individualName: Chuck Anderson
organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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
dateStamp: 2017-05-30
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: 12
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referenceSystemInfo: (MD_ReferenceSystem)
referenceSystemIdentifier: (RS_Identifier)
authority: (CI_Citation)
title: European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
date: (CI_Date)
date: 2008-11-12
dateType: (CI_DateTypeCode)
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: European Petroleum Survey Group
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: http://www.epsg-registry.org/
name: European Petroleum Survey Group Geodetic Parameter Dataset
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: (inapplicable)
code: urn:ogc:def:crs:EPSG:4326
version: 6.18.3
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identificationInfo: (MD_DataIdentification)
citation: (CI_Citation)
title: FK140307 (EM710)
date: (CI_Date)
date: 2014-03-08
dateType: (CI_DateTypeCode)creation
identifier: (MD_Identifier)
code: FK140307_EM710
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
role: (CI_RoleCode)custodian
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: University-National Oceanographic Laboratory System (UNOLS)
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 401-874-6825
address: (CI_Address)
deliveryPoint: 15 South Ferry Road
city: Narragansett
administrativeArea: RI
postalCode: 02882
country: USA
electronicMailAddress: office@unols.org
role: (CI_RoleCode)resourceProvider
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
role: (CI_RoleCode)publisher
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Schmidt Ocean Institute
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 415-975-4080
address: (CI_Address)
deliveryPoint: 555 Bryant Street, #374
city: Palo Alto
administrativeArea: CA
postalCode: 94301
country: USA
role: (CI_RoleCode)pointOfContact
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: University-National Oceanographic Laboratory System (UNOLS)
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 401-874-6825
address: (CI_Address)
deliveryPoint: 15 South Ferry Road
city: Narragansett
administrativeArea: RI
postalCode: 02882
country: USA
electronicMailAddress: office@unols.org
role: (CI_RoleCode)sponsor
abstract:
purpose:
status: (MD_ProgressCode)completed
pointOfContact: (CI_ResponsibleParty)
individualName: Christopher Kelley
organisationName: Department of Oceanography, University of Hawai`i at Manoa
positionName: Associate Professor
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 808-956-7437
address: (CI_Address)
deliveryPoint: 1000 Pope Road
city: Honolulu
administrativeArea: HI
postalCode: 96822
country: USA
electronicMailAddress: ckelley@hawaii.edu
role: (CI_RoleCode)principalInvestigator
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: 2018-03-15
dateType: (CI_DateTypeCode)publication
edition: 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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 Pacific 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: http://www.iho-ohi.net/iho_pubs/standard/S-23/S23_1953.pdf
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
type: (MD_KeywordTypeCode)dataCenter
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Data Center Keywords
date: (CI_Date)
date: 2018-03-18
dateType: (CI_DateTypeCode)publication
edition: 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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: GEOGRAPHIC REGION > GLOBAL
keyword: Vertical Location > VERTICAL LOCATION > SEA FLOOR
type: (MD_KeywordTypeCode)place
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Location Keywords
date: (CI_Date)
date: 2017-07-25
dateType: (CI_DateTypeCode)publication
edition: 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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: 2018-02-27
dateType: (CI_DateTypeCode)publication
edition: 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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)
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_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: FK140307
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: -177.4713989
eastBoundLongitude: -162.1812316
southBoundLatitude: 22.9023388
northBoundLatitude: 28.1712319
temporalElement: (EX_TemporalExtent)
extent:
TimePeriod:
beginPosition: 2014-03-08T22:08:26
endPosition: 2014-04-08T04:53:01
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distributionInfo: (MD_Distribution)
distributionFormat: (MD_Format)
name: Kongsberg EM710 water column data (.wcd) format
version: 1
specification: Kongsberg EM710 .wcd files. See the EM710 documentation for detailed format specification.
distributor: (MD_Distributor)
distributorContact: (CI_ResponsibleParty)
individualName: Chuck Anderson
organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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
distributionOrderProcess: (MD_StandardOrderProcess)
fees: Free
orderingInstructions: Contact the NCEI Water Column Sonar Data Manager to order data
transferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: http://maps.ngdc.noaa.gov/viewers/water_column_sonar/
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
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dataQualityInfo: (DQ_DataQuality)
scope: (DQ_Scope)
level: (MD_ScopeCode)collectionHardware
extent: (EX_Extent)
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geographicElement: (EX_BoundingPolygon)
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pos: -999.99 -99.99
temporalElement: (EX_TemporalExtent)
extent:
TimeInstant:
timePosition: 2015-06-09
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: 2014-03-08T22:08:26
processor: (CI_ResponsibleParty)
individualName: Christopher Kelley
organisationName: Department of Oceanography, University of Hawai`i at Manoa
positionName: Associate Professor
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 808-956-7437
address: (CI_Address)
deliveryPoint: 1000 Pope Road
city: Honolulu
administrativeArea: HI
postalCode: 96822
country: USA
electronicMailAddress: ckelley@hawaii.edu
role: (CI_RoleCode)principalInvestigator
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dataQualityInfo: (DQ_DataQuality)
scope: (DQ_Scope)
level: (MD_ScopeCode)series
lineage: (LI_Lineage)
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acquisitionInformation: (MI_AcquisitionInformation)
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)
phone: (CI_Telephone)
voice: +47 33 03 24 07
facsimile: +47 322 85 014
address: (CI_Address)
deliveryPoint: P.O. Box 483
deliveryPoint: NO-3601
city: Kongsberg
country: Norway
electronicMailAddress: km.support@kongsberg.com
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.
operation: (MI_Operation)
identifier: (MD_Identifier)
code: FK140307_EM710
status: (MD_ProgressCode)completed
parentOperation: (inapplicable)
platform: (MI_Platform)
citation: (CI_Citation)
title: R/V Falkor
date: (inapplicable)
identifier: (MD_Identifier)
code: Falkor (FK)
description: R/V Falkor is an 82.9 m (272 ft) LOA ship originally built in 1981 in Lƒ¼beck, Germany as a fishery protection vessel. The ship went through an extensive refit from 2009 to early 2012, converting the ship to an oceanographic research vessel. Cruising range and endurance are estimated at 8,000 nautical miles and 28 days of steaming (fuel-limited) at a cruising speed of 12 knots. The Falkor is operated by the Schmidt Ocean Institute in support of oceanographic research projects that help expand the understanding of the world's oceans through technological advancements, intelligent observation and analysis, and open sharing of information.
sponsor: (CI_ResponsibleParty)
organisationName: Schmidt Ocean Institute
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 415-975-4080
address: (CI_Address)
deliveryPoint: 555 Bryant Street, #374
city: Palo Alto
administrativeArea: CA
postalCode: 94301
country: USA
role: (CI_RoleCode)pointOfContact
sponsor: (CI_ResponsibleParty)
organisationName: Schmidt Ocean Institute
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 415-975-4080
address: (CI_Address)
deliveryPoint: 555 Bryant Street, #374
city: Palo Alto
administrativeArea: CA
postalCode: 94301
country: USA
role: (CI_RoleCode)pointOfContact
instrument: (MI_Instrument)
citation: (CI_Citation)
title: Simrad EK60 Echosounder
date: (inapplicable)
identifier: (MD_Identifier)
code: EK60
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Simrad - Kongsberg Maritime AS
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: +47 3303 4000 (Norway)
facsimile: +47 3304 2987 (Norway)
address: (CI_Address)
deliveryPoint: P.O. Box 111
deliveryPoint: Strandpromenaden 50
city: Horten
postalCode: 3191
country: Norway
electronicMailAddress: contact@simrad.com
onlineResource: (CI_OnlineResource)
linkage: http://www.simrad.com/www/01/nokbg0240.nsf/AllWeb/A25148D8E9F00D0DC12570DE0050A7CB?OpenDocument
name: Simrad EK60 Scientific echo sounder
description: Information on the Simrad EK60 including file format documentation.
function: (CI_OnLineFunctionCode)information
role: (CI_RoleCode)resourceProvider
identifier: (MD_Identifier)
code: Simrad EK60
type: singlebeam
description: The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system.
instrument: (MI_Instrument)
citation: (CI_Citation)
title: Knudsen CHIRP 3260
date: (unknown)
identifier: (MD_Identifier)
code: CHIRP 3260
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Knudsen Engineering Limited
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 315-393-8861 (USA)
voice: 613-267-1165 (Canada)
facsimile: 613-267-7085 (Canada)
address: (CI_Address)
deliveryPoint: 10 Industrial Road
city: Perth, Ontario
postalCode: K7H3P2
country: Canada
electronicMailAddress: info@knudsenengineering.com
onlineResource: (CI_OnlineResource)
linkage: http://knudseneng.com/products/chirp_3260
name: Chirp 3260 Echosounder
description: Chirp 3260 Echosounder information
function: (CI_OnLineFunctionCode)information
role: (CI_RoleCode)resourceProvider
identifier: (MD_Identifier)
code: Knudsen CHIRP 3260
type: Echosounder
description: The Chirp 3260 is designed for full ocean depth work where high transmit output power is a requirement. The Chirp 3260's 5U rackmount case can be fitted with up to six 2kW transmitter modules to output up to 12kW of total system power. The most common arrangement used by the research community worldwide is one 3.5 kHz channel configured for 10KW paired together with a 2KW, 12 kHz channel.
instrument: (MI_Instrument)
citation: (CI_Citation)
title: Kongsberg EM302 Multibeam Echosounder
date: (unknown)
identifier: (MD_Identifier)
code: EM302
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Kongsberg Maritime
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: +47 214 98 364
facsimile: +47 322 85 014
address: (CI_Address)
deliveryPoint: P.O. Box 483
deliveryPoint: NO-3601
city: Kongsberg
country: Norway
electronicMailAddress: km.support@kongsberg.com
onlineResource: (CI_OnlineResource)
linkage: http://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/871B055B3DE0DAC3C125715E002B5C68?OpenDocument
name: Kongsberg EM302 Multibeam Echosounder
description: Kongsberg EM302 Multibeam Echosounder information
function: (CI_OnLineFunctionCode)information
role: (CI_RoleCode)resourceProvider
identifier: (MD_Identifier)
code: Kongsberg EM302
type: Multibeam Echosounder
description: The state of the art 30 kHz EM 302 deep water multibeam sonar is manufactured by Kongsberg, Inc of Norway. The EM 302 transducers are modular linear arrays in a Mills cross configuration with separate units for transmit and receive. This sonar offers significantly larger swath width, increased data density and resolution. Beam focusing is applied both during reception and transmission. The system has up to 288 beams / 432 soundings per swath with pointing angles automatically adjusted according to achievable coverage or operator defined limits. In multi-ping mode, 2 swaths are generated per ping cycle, with up to 864 soundings. With multi-ping the transmit fan is duplicated and transmitted with a small difference in along track tilt. The applied tilt takes into account depth, coverage and vessel speed to give a constant sounding separation along track. The beam spacing can be adjusted as equi-distant or equi-angular. EM 302 uses both CW pulses and FM sweep pulses with pulse compression on reception, in order to increase the maximum useful swath width. The transmit fan is split in several individual sectors with independent active steering according to accomplish compensation for the vessel movements: yaw, pitch and roll. The high density, high resolution, large coverage and water column capability makes EM 302 an ideal system to explore the sea bed and the water column for detection and characterization of a broad spectrum of features.