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Controls of the basal mass balance of floating ice shelves


Gwyther, DE and Galton-Fenzi, B and Roberts, Jason, Controls of the basal mass balance of floating ice shelves, 18th Australasian Fluid Mechanics Conference, 3-7 December 2012, Launceston, Tasmania, pp. 1-4. (2012) [Refereed Conference Paper]

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Copyright 2012 Leishman Associates

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Models of the circulation beneath ice shelves draw on knowledge gained from observations of the turbulent boundary layer beneath sea ice [1] to parameterise the thermodynamic interaction between ice-shelf and ocean [2]. These parameterisations are commonly transferred to the sub-ice-shelf boundary layer in regions of melting [3], but are limited by uncertainty in the value of the friction coefficient and representations of the heat flux into the ice shelf and are wholly unsuitable when the nature of the ice-ocean interface is different [4], as a result of frazil formation in the super cooled waters. This paper will present an overview of the commonly used parameterisations and highlight where uncertainties remain.

Item Details

Item Type:Refereed Conference Paper
Keywords:ice shelves, basal mass balance, Antarctic oceanography
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Physical oceanography
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Oceanic processes (excl. in the Antarctic and Southern Ocean)
UTAS Author:Gwyther, DE (Dr David Gwyther)
UTAS Author:Galton-Fenzi, B (Dr Ben Galton-Fenzi)
UTAS Author:Roberts, Jason (Dr Jason Roberts)
ID Code:87410
Year Published:2012
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2013-11-15
Last Modified:2014-08-12

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