Sikuliaq

There are 10 posts tagged Sikuliaq (this is page 1 of 1).

2025 R/V Sikuliaq EM304 MKII / EM710 QAT

Cruise ID: SKQ202503S Multibeam System: EM304 MK II/ EM710 Dates: February 3-6, 2025 In Feb 2024, UAF and MAC personnel conducted sea acceptance testing (SAT) of R/V Sikuliaq’s (SKQ) new EM304 MKII multibeam mapping system, Seapath 380-R3 navigation system, and EM710 RX array Seasonal readiness testing off Hawaii in Feb 2025 expanded on the 2024 SAT work with access to deeper seafloor regions, supporting a more complete characterization of EM304 MKII performance UAF and MAC personnel planned a series of tests following the standard MAC SAT/QAT checklist, with consideration for post-SAT priorities and backup options to suit the weather and sea state conditions Small but critical updates were made to all sensor XYZ offsets, reflecting the final survey report provided by Westlake (after the 2024 SAT) and maintaining consistency of the mapping system origin at the granite block Calibrations for both systems revealed small residual biases, suggesting a high-accuracy vessel
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2024 R/V Sikuliaq EM304 MKII/EM710 SAT

Cruise ID: SKQ202403S Multibeam System: EM304 MKII/EM710 Dates: February 2024 R/V Sikuliaq (SKQ) received several significant upgrades to its multibeam mapping systems during the 2023-24 winter shipyard period in Seward, Alaska Conditions in the shipyard were extreme and complicated all work related to these upgrades; although many components of the winter work package were curtailed by these conditions, the UAF and Kongsberg teams completed all major mapping priority projects: Complete replacement of the original EM302 with an EM304 MKII system (0.5° TX / 1.0° RX) Addition of one Seapath 380-R3 navigation systems with a primary MGC serving the ship and mapping systems; a secondary MGC also serve the ship and acts as a spare for the Seapath 380 / mapping system Comprehensive new survey of vessel and sensor offsets by Westlake Consultants Installation of new permanent benchmarks at strategic hull locations Planned replacement of the EM710 RX array was not
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2023 R/V Sikuliaq EM302/EM710 QAT Report

Cruise ID: SKQ202306T Multibeam System: EM302/EM710 Dates: April 11, 2023 The University of Alaska’s UNOLS vessel R/V Sikuliaq (SKQ) is equipped with Kongsberg Maritime EM302 andEM710 multibeam echosounders and a Seapath 320 positioning / attitude system Following a routine maintenance visit from Kongsberg to SKQ in January, the Multibeam Advisory Committee(MAC) was asked to assist with Quality Assurance Testing (QAT) of the ship’s EM302 and EM710 ahead of the2023 field season; MAC personnel provided remote support for line planning and data analysis from shore MAC communication with SKQ personnel (Ethan Roth) commenced in winter 2022-23 with planning forcalibrations (‘patch tests’) for both systems at two proven calibration sites off Washington: EM302 at a site used by R/V Thomas G.
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2020 Sikuliaq EM302/EM710 Calibration Report

Cruise ID: SKQ202008S Multibeam System: EM302/EM710 Dates: June 24, 2020 The University of Alaska’s UNOLS vessel R/V Sikuliaq(SKQ) is equipped with Kongsberg Maritime EM302 and EM710 multibeam echosounders and a Seapath320 positioning / attitude system The Multibeam Advisory Committee (MAC) was asked to assist with Quality Assurance Testing (QAT) of the ship’s EM302 and EM710 ahead 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: SKQ202008S_SIKULIAQ_EM302_EM710_calibration_report_20200625Download Related Information Cruise Data at R2R
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