MAC

2017 Kilo Moana Quality Assessment Visit

Multibeam System: 
EM122
CruiseID: 
KM1711

During the late fall of 2016 and spring of 2017 the University of Hawaii’s Ocean Technology Group (OTG) submitted bathymetric data, screen shots (Figure 1), and built in self-test (BIST) data to the Multibeam Advisory Committee (MAC) and to Gates Acoustic documenting pervasive noise which was affecting the R/V Kilo Moana’s Kongsberg EM122 multibeam echosounder system’s (MBES) ability to collect high-quality bathymetric data.

2017 Healy Quality Assessment Report

Multibeam System: 
EM122
CruiseID: 
HE17TA

TheUSCGC Healyis equipped with a Kongsberg MaritimeEM122(12kHz)deepwater multibeam echosounderutilizingboth a Seapath 330+ (primary) and Applanix POS/MV(secondary) positioning and attitude referencesystems. This report describes the procedures and results from a review of system geometry, geometric calibrations(‘patch tests’),vessel noise testing, swath accuracy assessment, and swath coverageanalysis conductedduring cruise HE17TA (May 16-20, 2017)off the coast of Washington.

2016 Sally Ride System Review

Multibeam System: 
EM122
CruiseID: 
SR1601

The R/V Sally Ride is equipped with a Kongsberg Maritime EM122 (12 kHz) and EM712 (40-100 kHz)
multibeam echosounders both utilizing a Seapath 330+ (primary) and iXBlue HYDRINS (secondary)
positioning and attitude reference system. This report describes the procedures and results from a
review of system geometry, geometric calibrations (‘patch tests’), and assessments of swath accuracy
and swath coverage conducted during cruise SR1601 (July 25-28, 2016) off the coast of Washington.
These tests were conducted to verify functionality and data quality at the beginning of each multibeam

2016 Neil Armstrong Sea Acceptance Trails

Multibeam System: 
EM122
Multibeam System: 
EM710

The R/V Neil Armstrong is a new vessel operated by Woods Hole Oceanographic Institute (WHOI) equipped with Kongsberg Maritime (KM) EM122 (12 kHz) and EM710 (70-100 kHz) multibeam echosounders. The hardware installation, calibration, software configuration, and performance of these systems were evaluated during a sea acceptance trial involving WHOI, KM, Multibeam Advisory Committee (MAC), and NOAA Office of Coast Survey personnel.

RV Sikuliaq 2016 Calibration Report

CruiseID: 
SKQ201602S

The R/V Sikuliaq is equipped with Kongsberg Maritime (KM) EM302 (30 kHz) and EM710 (70-100 kHz) multibeam echosounders and a Seapath 320 positioning and attitude system with C-NAV DGNSS auxiliary input. These systems were reviewed by the Multibeam Advisory Committee (MAC) and personnel from NOAA, the University of Alaska Fairbanks (UAF), and Kongsberg Maritime (KM) during sea acceptance trials (SAT) in August 2014.

RV Hugh Sharp 2016 QAT Visit

CruiseID: 
HRS1602

The R/V Hugh R. Sharp is equipped with a Reson 7125 SVP2 (200/400 kHz) multibeam echosounder installed on a drop keel and an Applanix POS-MV 320 positioning and attitude system. Traditionally, survey planning and data acquisition are handled using Hypack HYSWEEP software installed on the RESON acquisition machine.

Kilo Moana 2015 EM122 MBES Review

Multibeam System: 
EM122
CruiseID: 
KM1514

Introduction

Kilo Moana 2015 Acoustic Test Report

Multibeam System: 
EM122

Executive Summary

Conclusions

  • 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.2.The EM 122 receive array module 6 was out of phase with the rest of the sonar receive array.
  • The EM 122 receive array module 6 was out of phase with the rest of the sonar receive array.
  • Propeller cavitation performance was good and consistent with previous results.

Nathaniel B. Palmer 2015 Sea Acceptance Report

Multibeam System: 
EM122
CruiseID: 
NBP1505

Executive Summary

The research vessel icebreaker (RVIB) Nathaniel B. Palmer (NBP) undertook cruise NBP1505 in the vicinity of the continental shelf break between Talcahuano and Puerto Montt, Chile, from June 10-15, 2015 (Fig. 1) in order to assess performance of the vessel’s 12-kHz multibeam echosounder (MBES). The MBES consists of a Kongsberg Maritime (KM) EM122 transceiver installed in June 2014 and transmit (TX) and receive (RX) arrays installed in June 2015, prior to NBP1505.

Healy 2014 Acoustic Test Report

Gates Acoustic Services was tasked by SCRIPPS Institute of Oceanography to investigate and quantify acoustic issues associated with operation of the USCGC HEALY (WAGBG20). An at-sea investigation was accomplished during ship operations in deep water out of Nome, Alaska on August 13-24, 2014.

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