scholarly journals Measurements beneath an Antarctic ice shelf using an autonomous underwater vehicle

2006 ◽  
Vol 33 (8) ◽  
Author(s):  
K. W. Nicholls ◽  
E. P. Abrahamsen ◽  
J. J. H. Buck ◽  
P. A. Dodd ◽  
C. Goldblatt ◽  
...  
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Ice Shelf

scholarly journals Autonomous Underwater Vehicle Exploration of the Ocean Cavity Beneath an Antarctic Ice Shelf

Oceanography ◽  
2012 ◽  
Vol 25 (3) ◽  
pp. 202-203 ◽  
Author(s):  
Adrian Jenkins ◽  
Pierre Dutrieux ◽  
Stan Jacobs ◽  
Steve McPhail ◽  
James Perrett ◽  
...  
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Ice Shelf

scholarly journals Subglacial bathymetry and sediment layer distribution beneath the Pine Island Glacier ice shelf, West Antarctica, modeled using aerogravity and autonomous underwater vehicle data

2013 ◽  
Vol 54 (64) ◽  
pp. 27-32 ◽  
Author(s):  
Atsuhiro Muto ◽  
Sidhar Anandakrishnan ◽  
Richard B. Alley
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Flow Speed ◽  
Ocean Bottom ◽  
Sediment Layer ◽  
West Antarctica ◽  
Ice Shelf ◽  
The North ◽  
Submarine Ridge ◽  
Glacier Ice

Abstract Pine Island Glacier (PIG), West Antarctica, has been experiencing acceleration in its flow speed and mass loss for nearly two decades, driven in part by an increase in the delivery of relatively warm Circumpolar Deep Water (CDW). However, at present, the configuration of the sub-ice-shelf cavity and bed conditions beneath the PIG ice shelf that dictate such oceanic influences remain poorly understood. Here, we use aerogravity data and ocean bottom depths measured by an autonomous underwater vehicle (AUV) to model the bathymetry and sediment layer thickness beneath the PIG ice shelf. Results reveal that the deep basins, previously found by AUV on both landward and seaward sides of a submarine ridge, extend substantially to the north and south. The water column thickness of the basins reaches 400-550 m on the landward side of the ridge and 500-600 m on the seaward side. The sediment layer covers the whole expanse of the seabed beneath the ice shelf, and the thickness is in the range ∼200-1000 m. The thinnest sediments (<200 m) are found on the seaward slope of the submarine ridge, suggesting that erosion by advancing ice may have been concentrated in the lee of the topographic high.

scholarly journals Seabed corrugations beneath an Antarctic ice shelf revealed by autonomous underwater vehicle survey: Origin and implications for the history of Pine Island Glacier

2013 ◽  
Vol 118 (3) ◽  
pp. 1356-1366 ◽  
Author(s):  
Alastair G. C. Graham ◽  
Pierre Dutrieux ◽  
David G. Vaughan ◽  
Frank O. Nitsche ◽  
Richard Gyllencreutz ◽  
...  
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Ice Shelf ◽  
History Of

Development of a Semi-Autonomous Underwater Vehicle for Intervention Missions (SAUVIM Phase III-B)

2009 ◽  
Author(s):  
Giacomo Marani ◽  
Junku Yuh ◽  
Song K. Choi ◽  
Son-Cheol Yu ◽  
Luca Gambella ◽  
...  
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Phase Iii
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