eCite Digital Repository
Flow of the Amery Ice Shelf and its tributary glaciers
Citation
Pittard, ML and Roberts, JL and Warner, RC and Galton-Fenzi, BK and Watson, CS and Coleman, R, Flow of the Amery Ice Shelf and its tributary glaciers, Proceedings of the 18th Australasian Fluid Mechanics Conference, 3-7 December 2012, Launceston, Tasmania, pp. 605-608. ISBN 978-0-646-58373-0 (2013) [Refereed Conference Paper]
Copyright Statement
Copyright 2012 Leishman Associates
Official URL: http://www.proceedings.com/17862.html
Abstract
The Amery Ice Shelf (AIS) is a major ice shelf that drains approximately
16% of the East Antarctic Ice Sheet. Here we
use a sequence of visible spectrum Landsat7 satellite images
to track persistent surface features over the southern portion of
the AIS and its three major tributary glaciers. A spatially incomplete
velocity field is calculated by comparing the distances
features have moved between image pairs. Key features of the
flow field including the vorticity and strain rate distributions are
discussed. Our velocities agree with results from recent compilation
of satellite derived velocities and available Global Position
System (GPS) measurements. To assess change, we compare
the yearly average velocities from image pairs in 2006 and
2010 over the study region. We find the velocities show minimal
changes with the exception of the Mellor Glacier which has
increased.
Item Details
Item Type: | Refereed Conference Paper |
---|---|
Research Division: | Earth Sciences |
Research Group: | Physical Geography and Environmental Geoscience |
Research Field: | Glaciology |
Objective Division: | Environment |
Objective Group: | Climate and Climate Change |
Objective Field: | Effects of Climate Change and Variability on Antarctic and Sub-Antarctic Environments (excl. Social Impacts) |
UTAS Author: | Pittard, ML (Mr Mark Pittard) |
UTAS Author: | Roberts, JL (Dr Jason Roberts) |
UTAS Author: | Warner, RC (Dr Roland Warner) |
UTAS Author: | Galton-Fenzi, BK (Dr Ben Galton-Fenzi) |
UTAS Author: | Watson, CS (Dr Christopher Watson) |
UTAS Author: | Coleman, R (Professor Richard Coleman) |
ID Code: | 86477 |
Year Published: | 2013 |
Deposited By: | Geography and Environmental Studies |
Deposited On: | 2013-09-18 |
Last Modified: | 2014-08-12 |
Downloads: | 0 |
Repository Staff Only: item control page