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2018 Okeanos Explorer EM302 SAT

Multibeam System:




The primary RX array SAT activities included:

  • 2018-10-02: depart Quonset, RI
  • EM302 TX and RX array survey review
  • EM302 and POS MV geometry / config. review
  • EM302 start-up (by Kongsberg) and BISTs
  • Geometric calibration and verification (‘patch test’)
  • Deep roll verification
  • Deep accuracy testing
  • Swath extinction data collection during transits (including after SAT portion of EX1810)
  • EM302 RX noise vs. speed testing (2018-10-24)
  • 2018-10-05: return Pt. Judith, RI for personnel transfer


2020 Okeanos Explorer EM304 SAT




  1. The Okeanos Explorer received a Kongsberg EM304 multibeam echosounder topside upgrade over the 2019-20 winter maintenance period. No changes were made to the TX or RX arrays (installed in 2007 and 2018, respectively) or the Applanix POS MV positioning and attitude system.
  2. Sea acceptance testing (SAT) was conducted during EX2000 (March 3-8, 2020) with Kongsberg, NOAA, and OMAO personnel on board to complete the following procedures:
    • Review EM304 and POS MV system geometry

Vessel Geometry and MBES Offset Recommendations

Vessel survey reports (VSRs) play a critical role throughout service life (10+ years) of a multibeam echosounder system (MBES) and provide the foundation for future vessel and sensor surveys. This document provides recommendations for VSRs that minimize opportunity for errors in the configuration of MBES and ancillary sensors.

NOAA Ship Ruben Lasker ME70 Integration Testing

Executive Summary

The purpose of Coast Survey’s participation in this cruise was to verify the installation and configuration of the ME70 and ancillary systems; validate the current Hypack implementation of the ME70 bottom detection code; and provide operational guidance to the future operators of this system. The transit from San Diego, CA to Neah Bay, WA offered an opportunity to test this system without interfering with other planned science objectives. While we have used the Multibeam Sonar Acceptance Procedures as

2018 Thompson EM302 SAT Report

Multibeam System:




Conducted January 8-12, 2018 to test the new Kongsberg EM302 (upgraded from EM300) and Applanix POS MV V5.

NOAA Ship Fairweather Launch 2017 SAT

Executive Summary

We installed four Kongsberg EM2040 multibeam echo sounders, one on each of Fairweather’s
hydrographic survey launches during the spring of 2017 in Newport, OR. We accomplished the test and
qualification of these systems on Puget Sound from May 22 through May 26. Conditions were generally agreeable for testing with some wind driven chop potentially affecting a limited set of noise tests. All systems were successfully integrated and measured performance was in compliance with vendor specifications and suitable for conducting NOAA hydrographic surveys.

2016 Neil Armstrong Sea Acceptance Trails

Multibeam System:



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.

NOAA Ship Thomas Jefferson 2016 SAT

Executive Summary

A Kongsberg EM2040 multibeam and an EM710 MKII multibeam were installed aboard NOAA Ship Thomas Jefferson during an extended shipyard period at the Coast Guard yard in Curtis Bay in Baltimore, MD during the spring and summer of 2016. After a short stay at the Atlantic Marine Operations Center in Norfolk, VA, the ship proceeded with acceptance testing of the new survey systems in the areas between Norfolk and Hudson Canyon during the third week of October, 2016, with the assistance of Office of Coast Survey and Kongsberg personnel.


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