Vessel: R/V Kilo Moana Multibeam System: EM122 Dates: August, 2015 The EM 122 receive array had a bad preamplifier board that was causing the entire array to have higher noise levels and to exhibit non-uniform distribution of noise characteristics.
Cruise ID: KM1514 Multibeam System: EM122 Dates: August 9-13, 2015 The R/V Kilo Moana undertook an engineering shakedown leg (KM1514) in order to assess acoustic noise issues documented during the KM1505 Quality Assessment Visit (QAT) conducted by the Multibeam Advisory Committee (MAC) in April, 2015 and documented in that report (see R/V Kilo Moana, EM122 and EM710 Multibeam Echosounder System Review, KM1505 April 28 – 30, 2015).
Vessel: R/V Nancy Foster Multibeam System: EM710 Dates: March 9-13, 2015 A Kongsberg EM710 MKII multibeam was installed aboard NOAA Ship Nancy Foster at GMD Shipyard in Brooklyn, NY in March of 2015.
Cruise ID: NBP1505 Multibeam System: EM122 Dates: June 10-15 2015 The research vessel icebreaker (RVIB) Nathaniel B.
Vessel: R/V Fairweather Multibeam System: EM710 Dates: December 2014 A Kongsberg EM710 multibeam echosounder was installed on the NOAA Ship Fairweather by Bay Ship and Yacht Co.
Cruise ID: NA055 Multibeam System: EM302 Dates: March 30 – April 5, 2015 Heading into the 2015 operating season, the EM302 and associated sensors aboard E/V Nautilus are working well compared to previous evaluations and to other EM302 systems examined recently.