IPEV Home

French Polar Institute Literature Database

Home |  Show All |  Simple Search |  Advanced Search
Quick Search:
1–1 of 1 record found matching your query (RSS):
Select All    Deselect All << 1 >>
List View
 | 
Citations
 | 
Details
   print
  Record Links
Author E. Le Meur, M. Sacchettini, S. Garambois, E. Berthier, A. S. Drouet, G. Durand, D. Young, J. S. Greenbaum, D. D. Blankenship, J. W. Holt, E. Rignot, J. Mouginot, Y. Gim, D. Kirchner, B. de Fleurian, O. Gagliardini and F. Gillet-Chaulet doi  openurl
  Title Two independent methods for mapping the grounding line of an outlet glacier – example from the Astrolabe Glacier, Terre Adélie, Antarctica Type Journal Article
  Year (down) 2013 Publication The Cryosphere Discuss. Abbreviated Journal The Cryosphere Discuss.  
  Volume 7 Issue 4 Pages 3969-4014  
  Keywords  
  Abstract Abstract
The grounding line is a key element acting on the dynamics of coastal outlet glaciers.
Knowing its position accurately is fundamental for both modelling the glacier dynamics
and establishing a benchmark to which one can later refer in case of change. Here we
� �map the grounding line of the Astrolabe Glacier in East Antarctica (66 41 S; 140 05 E),
using hydrostatic and tidal methods. The first method is based on new surface and
ice thickness data from which the line of buoyant flotation is found. We compare this
hydrostatic map with kinematic GPS measurements of the tidal response of the ice
surface. By detecting the transitions where the ice starts to move vertically in response
to the tidal forcing we find control points for the grounding line position along GPS
profiles. With the help of a 2-dimensional elastic plate model, rigid elastic deviations are
computed and applied to these control points. Once the extent of the grounding zone,
the kinematic approach is consistent with the hydrostatic map. These two approaches
lead us to propose a grounding line for the Astrolabe Glacier that significantly deviates
from those obtained so far from satellite imagery.
 
  Programme 1053  
  Campaign  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1994-0440 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 4397  
Permanent link to this record
Select All    Deselect All << 1 >>
List View
 | 
Citations
 | 
Details
   print
toggle visibility Cite Options
Home Show Record  |  Help