A new view of the underside of Arctic sea ice

Jeremy Wilkinson; Peter Wadhams; Steve McPhail

doi:10.1029/2005GL025131

A new view of the underside of Arctic sea ice

Jeremy Wilkinson, Peter Wadhams, Steve McPhail

SAMS UHI

Research output: Contribution to journal › Article › peer-review

100 Citations (Scopus)

Abstract

The Autosub-II autonomous underwater vehicle (AUV), operating off NE Greenland in August 2004, obtained the first successful swath sonar measurements under sea ice, showing in unprecedented detail the three-dimensional nature of the under-ice surface. The vehicle, operated from RRS James Clark Ross, obtained more than 450 track-km of under-ice multibeam data. We show imagery from first- and multiyear ice, including young ridges, old hummocks and undeformed melting ice. In addition, we show how the combination of other on-board sensors enabled the vehicle to obtain detailed information about seabed topography, water structure and current fields in an exploratory mode within a region which is seldom visited because of difficult year-round ice conditions. This included identification of a new current regime in the Norske Trough.

Original language	English
Pages (from-to)	C11
Journal	GEOPHYS RES LETT
Volume	33
Issue number	4
DOIs	https://doi.org/10.1029/2005GL025131
Publication status	Published - 2006

Keywords

Geosciences, Multidisciplinary
NORTHEAST WATER POLYNYA

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title = "A new view of the underside of Arctic sea ice",

abstract = "The Autosub-II autonomous underwater vehicle (AUV), operating off NE Greenland in August 2004, obtained the first successful swath sonar measurements under sea ice, showing in unprecedented detail the three-dimensional nature of the under-ice surface. The vehicle, operated from RRS James Clark Ross, obtained more than 450 track-km of under-ice multibeam data. We show imagery from first- and multiyear ice, including young ridges, old hummocks and undeformed melting ice. In addition, we show how the combination of other on-board sensors enabled the vehicle to obtain detailed information about seabed topography, water structure and current fields in an exploratory mode within a region which is seldom visited because of difficult year-round ice conditions. This included identification of a new current regime in the Norske Trough.",

keywords = "Geosciences, Multidisciplinary, NORTHEAST WATER POLYNYA",

author = "Jeremy Wilkinson and Peter Wadhams and Steve McPhail",

note = "Description Geophys. Res. Lett., 17 February 2006 ",

year = "2006",

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T1 - A new view of the underside of Arctic sea ice

AU - Wilkinson, Jeremy

AU - Wadhams, Peter

AU - McPhail, Steve

N1 - Description Geophys. Res. Lett., 17 February 2006

PY - 2006

Y1 - 2006

N2 - The Autosub-II autonomous underwater vehicle (AUV), operating off NE Greenland in August 2004, obtained the first successful swath sonar measurements under sea ice, showing in unprecedented detail the three-dimensional nature of the under-ice surface. The vehicle, operated from RRS James Clark Ross, obtained more than 450 track-km of under-ice multibeam data. We show imagery from first- and multiyear ice, including young ridges, old hummocks and undeformed melting ice. In addition, we show how the combination of other on-board sensors enabled the vehicle to obtain detailed information about seabed topography, water structure and current fields in an exploratory mode within a region which is seldom visited because of difficult year-round ice conditions. This included identification of a new current regime in the Norske Trough.

AB - The Autosub-II autonomous underwater vehicle (AUV), operating off NE Greenland in August 2004, obtained the first successful swath sonar measurements under sea ice, showing in unprecedented detail the three-dimensional nature of the under-ice surface. The vehicle, operated from RRS James Clark Ross, obtained more than 450 track-km of under-ice multibeam data. We show imagery from first- and multiyear ice, including young ridges, old hummocks and undeformed melting ice. In addition, we show how the combination of other on-board sensors enabled the vehicle to obtain detailed information about seabed topography, water structure and current fields in an exploratory mode within a region which is seldom visited because of difficult year-round ice conditions. This included identification of a new current regime in the Norske Trough.

KW - Geosciences, Multidisciplinary

KW - NORTHEAST WATER POLYNYA

U2 - 10.1029/2005GL025131

DO - 10.1029/2005GL025131

M3 - Article

SN - 1944-8007

VL - 33

SP - C11

JO - GEOPHYS RES LETT

JF - GEOPHYS RES LETT

IS - 4

ER -

A new view of the underside of Arctic sea ice

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