Vessel Information Type Research Vessel Operator Lamont-Doherty Earth Observatory Flag USA MMSI 367059880 Sonar System Information Kongsberg EM122
(12 kHz, 150° swath, 1x1° beams) Related Links Cruise Catalog
R2R Quality Assessment
Technical Reports
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2023 R/V Langseth EM122 QAT Report
Cruise ID: MGL2301Multibeam System: EM122Dates: February 2-5, 2023 As part of the QAT, major updates were made to the Seapath 330, POS MV V5, and EM122 configurations to reflect the high-quality survey by Westlake Consultants and bring all sensors into a unified mapping reference frame; see System Geometry for more details of the Westlake survey
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2012 Langseth Quality Assurance Report
Cruise ID: MGL1214 Multibeam System: EM122 Dates: August 01, 2012 Patch Test ResultsLatency Test– No change neededRoll Test– Applied additional offset of -0.065– Resulting Roll Offset -0.575Pitch Test– No change neededHeading Test– Applied offset of -0.2– Resulting Heading&Offset:&L0.2& Attached Documents Report: Pre-Cruise Analysis: Related Information Cruise Data at R2R
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2011 Marcus G. Langseth Acoustic Test Report
Cruise ID: R/V Marcus G. Langseth Multibeam System: EM122 Dates: February 04-07, 2011 The R/V Atlantis replaced its EM122 multibeam echosounder with an EM124 upgrade during the 2020-21 R/V MARCUS G. LANGSETH’s acoustic signature was successfully measured during this acoustic test. The levels of the EM 122 were controlled by propeller cavitation. The quietest vessel