Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water
Limitations of access have long restricted exploration and investigation of the cavities beneath ice shelves to a small number of drillholes. Studies of sea-ice underwater morphology are limited largely to scientific utilization of submarines. Remotely operated vehicles, tethered to a mother ship by...
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ftloughboroughun:oai:figshare.com:article/9482441 2023-05-15T13:35:35+02:00 Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water Julian A. Dowdeswell Jeffrey Evans R. Mugford G. Griffiths S. McPhail N. Millard P. Stevenson Mark A. Brandon C. Banks K. Heywood M.R. Price P.A. Dodd A. Jenkins K.W. Nicholls D. Hayes E.P. Abrahamsen P. Tyler B. Bett D. Jones Peter Wadhams J.P. Wilkinson K. Stansfield S. Ackley 2008-01-01T00:00:00Z https://figshare.com/articles/journal_contribution/Autonomous_underwater_vehicles_AVUs_and_investigations_of_the_ice-ocean_interface_deploying_the_Autosub_AUV_in_Antarctic_and_Arctic_water/9482441 unknown 2134/13701 https://figshare.com/articles/journal_contribution/Autonomous_underwater_vehicles_AVUs_and_investigations_of_the_ice-ocean_interface_deploying_the_Autosub_AUV_in_Antarctic_and_Arctic_water/9482441 CC BY-NC-ND 4.0 CC-BY-NC-ND Earth Sciences not elsewhere classified untagged Text Journal contribution 2008 ftloughboroughun 2022-01-01T20:32:21Z Limitations of access have long restricted exploration and investigation of the cavities beneath ice shelves to a small number of drillholes. Studies of sea-ice underwater morphology are limited largely to scientific utilization of submarines. Remotely operated vehicles, tethered to a mother ship by umbilical cable, have been deployed to investigate tidewater-glacier and ice-shelf margins, but their range is often restricted. The development of free-flying autonomous underwater vehicles (AUVs) with ranges of tens to hundreds of kilometres enables extensive missions to take place beneath sea ice and floating ice shelves. Autosub2 is a 3600 kg, 6.7 m long AUV, with a 1600 m operating depth and range of 400 km, based on the earlier Autosub1 which had a 500m depth limit. A single direct-drive d.c. motor and five-bladed propeller produce speeds of 1–2 ms−1. Rear-mounted rudder and stern-plane control yaw, pitch and depth. The vehicle has three sections. The front and rear sections are free-flooding, built around aluminium extrusion space-frames covered with glass-fibre reinforced plastic panels. The central section has a set of carbon-fibre reinforced plastic pressure vessels. Four tubes contain batteries powering the vehicle. The other three house vehicle-control systems and sensors. The rear section houses subsystems for navigation, control actuation and propulsion and scientific sensors (e.g. digital camera, upward-looking 300 kHz acoustic Doppler current profiler, 200 kHz multibeam receiver). The front section contains forward-looking collision sensor, emergency abort, the homing systems, Argos satellite data and location transmitters and flashing lights for relocation as well as science sensors (e.g. twin conductivity–temperature–depth instruments, multibeam transmitter, sub-bottom profiler, AquaLab water sampler). Payload restrictions mean that a subset of scientific instruments is actually in place on any given dive. The scientific instruments carried on Autosub are described and examples of observational data ... Other Non-Article Part of Journal/Newspaper Antarc* Antarctic Arctic Ice Shelf Ice Shelves Sea ice Tidewater Loughborough University: Figshare Antarctic Arctic |
institution |
Open Polar |
collection |
Loughborough University: Figshare |
op_collection_id |
ftloughboroughun |
language |
unknown |
topic |
Earth Sciences not elsewhere classified untagged |
spellingShingle |
Earth Sciences not elsewhere classified untagged Julian A. Dowdeswell Jeffrey Evans R. Mugford G. Griffiths S. McPhail N. Millard P. Stevenson Mark A. Brandon C. Banks K. Heywood M.R. Price P.A. Dodd A. Jenkins K.W. Nicholls D. Hayes E.P. Abrahamsen P. Tyler B. Bett D. Jones Peter Wadhams J.P. Wilkinson K. Stansfield S. Ackley Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water |
topic_facet |
Earth Sciences not elsewhere classified untagged |
description |
Limitations of access have long restricted exploration and investigation of the cavities beneath ice shelves to a small number of drillholes. Studies of sea-ice underwater morphology are limited largely to scientific utilization of submarines. Remotely operated vehicles, tethered to a mother ship by umbilical cable, have been deployed to investigate tidewater-glacier and ice-shelf margins, but their range is often restricted. The development of free-flying autonomous underwater vehicles (AUVs) with ranges of tens to hundreds of kilometres enables extensive missions to take place beneath sea ice and floating ice shelves. Autosub2 is a 3600 kg, 6.7 m long AUV, with a 1600 m operating depth and range of 400 km, based on the earlier Autosub1 which had a 500m depth limit. A single direct-drive d.c. motor and five-bladed propeller produce speeds of 1–2 ms−1. Rear-mounted rudder and stern-plane control yaw, pitch and depth. The vehicle has three sections. The front and rear sections are free-flooding, built around aluminium extrusion space-frames covered with glass-fibre reinforced plastic panels. The central section has a set of carbon-fibre reinforced plastic pressure vessels. Four tubes contain batteries powering the vehicle. The other three house vehicle-control systems and sensors. The rear section houses subsystems for navigation, control actuation and propulsion and scientific sensors (e.g. digital camera, upward-looking 300 kHz acoustic Doppler current profiler, 200 kHz multibeam receiver). The front section contains forward-looking collision sensor, emergency abort, the homing systems, Argos satellite data and location transmitters and flashing lights for relocation as well as science sensors (e.g. twin conductivity–temperature–depth instruments, multibeam transmitter, sub-bottom profiler, AquaLab water sampler). Payload restrictions mean that a subset of scientific instruments is actually in place on any given dive. The scientific instruments carried on Autosub are described and examples of observational data ... |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Julian A. Dowdeswell Jeffrey Evans R. Mugford G. Griffiths S. McPhail N. Millard P. Stevenson Mark A. Brandon C. Banks K. Heywood M.R. Price P.A. Dodd A. Jenkins K.W. Nicholls D. Hayes E.P. Abrahamsen P. Tyler B. Bett D. Jones Peter Wadhams J.P. Wilkinson K. Stansfield S. Ackley |
author_facet |
Julian A. Dowdeswell Jeffrey Evans R. Mugford G. Griffiths S. McPhail N. Millard P. Stevenson Mark A. Brandon C. Banks K. Heywood M.R. Price P.A. Dodd A. Jenkins K.W. Nicholls D. Hayes E.P. Abrahamsen P. Tyler B. Bett D. Jones Peter Wadhams J.P. Wilkinson K. Stansfield S. Ackley |
author_sort |
Julian A. Dowdeswell |
title |
Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water |
title_short |
Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water |
title_full |
Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water |
title_fullStr |
Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water |
title_full_unstemmed |
Autonomous underwater vehicles (AVUs) and investigations of the ice-ocean interface: deploying the Autosub AUV in Antarctic and Arctic water |
title_sort |
autonomous underwater vehicles (avus) and investigations of the ice-ocean interface: deploying the autosub auv in antarctic and arctic water |
publishDate |
2008 |
url |
https://figshare.com/articles/journal_contribution/Autonomous_underwater_vehicles_AVUs_and_investigations_of_the_ice-ocean_interface_deploying_the_Autosub_AUV_in_Antarctic_and_Arctic_water/9482441 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic Ice Shelf Ice Shelves Sea ice Tidewater |
genre_facet |
Antarc* Antarctic Arctic Ice Shelf Ice Shelves Sea ice Tidewater |
op_relation |
2134/13701 https://figshare.com/articles/journal_contribution/Autonomous_underwater_vehicles_AVUs_and_investigations_of_the_ice-ocean_interface_deploying_the_Autosub_AUV_in_Antarctic_and_Arctic_water/9482441 |
op_rights |
CC BY-NC-ND 4.0 |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766067477897281536 |