Vessel ID: R/V Kilo MoanaMultibeam System: EM122/EM710Dates: May 22, 2022 R/V Kilo Moana conducted pre-season Quality Assurance Testing for the EM122 and EM710 multibeam mapping systems, following a series of POS MV troubleshooting steps and a dry dock maintenance period Pre- and post-shipyard noise testing indicated stable/acceptable noise levels and no damage in the shipyard A multibeam sensor geometry review and POS MV GAMS antenna calibration proceeded normally prior to geometric calibrations (‘patch tests’) at proven sites off Oahu (used previously by multiple vessels) Calibration adjustments were reasonably small and applied after data collection Swath coverage was assessed for the EM122 using transit data, indicating trends similar to previous years Swath artifacts were noted for each system, which may be addressed by software/firmware updates and some runtime setting adjustments; the MAC is available to review additional data to try to identify the root causes Following the 2022 QAT, the MAC

Cruise ID: KM2104B Multibeam System: EM122/EM710Dates: May 14-15, 2021 The University of Hawaii’s UNOLS vessel R/V Kilo Moana (KM) is equipped with Kongsberg Maritime EM122 and EM710 multibeam echosounders and an Applanix POS MV-320 v5 Ocean Master positioning / attitude system.The Multibeam Advisory Committee (MAC) was asked to assist with Quality Assurance Testing (QAT) of the ship’s multibeam echosounders ahead of the 2021 field season after factory service and re-installation of the IMU Attached Documents Report: Kilo_Moana_2021_EM122_EM710_QAT_report_v1p0Download Related Information Cruise Data at R2R

Cruise ID: KM2008B Multibeam System: EM122/EM710 Dates: July 28, 2020 The University of Hawaii’s UNOLS vessel R/V Kilo Moana(KM) is equipped with Kongsberg Maritime EM122 and EM710 multibeam echosounders and an ApplanixPOS MV-320 v5 Ocean Master positioning / attitude system The Multibeam Advisory Committee (MAC) was asked to assist with Quality Assurance Testing (QAT) of the ship’s multibeam echosoundersahead of the 2020 field season; due to widespread travel restrictions, MAC personnel provided remote support for line planning and data analysis from shore Attached Documents Report: KM_2020_EM122_EM710_QAT_report_v1p0Download Related Information Cruise Data at R2R