Through-ice AUV deployment: Operational and technical experience from two seasons of Arctic fieldwork

Detailed sea ice draft mapping was recently accomplished in the Beaufort Sea, north of Alaska, in 2007 and in the Lincoln Sea, north of Canada's Ellesmere Island, in 2008 using a small (3m long, 20cm diameter), man-handleable Gavia AUV incorporating an inertial navigation system and a 500kHz ph...

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Bibliographic Details
Published in:Cold Regions Science and Technology
Main Authors: Doble, MJ, Forrest, AL, Wadhams, P, Laval, BE
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2009
Subjects:
Engineering
Maritime Engineering
Special Vehicles
Arctic
Ellesmere Island
Beaufort Sea
Lincoln Sea
Sea ice
Alaska
Online Access:https://doi.org/10.1016/j.coldregions.2008.11.006
http://ecite.utas.edu.au/82353
Description
Summary:Detailed sea ice draft mapping was recently accomplished in the Beaufort Sea, north of Alaska, in 2007 and in the Lincoln Sea, north of Canada's Ellesmere Island, in 2008 using a small (3m long, 20cm diameter), man-handleable Gavia AUV incorporating an inertial navigation system and a 500kHz phase-measuring swath sonar. The topography of specific ice features was mapped across 80m-wide swaths by performing repeated runs in the vicinity of access holes drilled in the sea ice. The paper discusses the technical and operational developments undertaken to successfully accomplish the missions, including test deployments in a frozen Canadian lake prior to each Arctic deployment. Example data are shown and accuracy issues discussed. 2008 Elsevier B.V. All rights reserved.

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