Payne, AJ;
Vieli, A;
Shepherd, AP;
Wingham, DJ;
Rignot, E;
(2004)
Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans.
Geophysical Research Letters
, 31
(23)
, Article L23401. 10.1029/2004GL021284.
![[thumbnail of 2004GL021284.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) |
PDF
2004GL021284.pdf Available under License : See the attached licence file. Download (343kB) |
Abstract
A growing body of observational data suggests that Pine Island Glacier (PIG) is changing on decadal or shorter timescales. These changes may have far-reaching consequences for the future of the West Antarctic ice sheet (WAIS) and global sea levels because of PIG's role as the ice sheet's primary drainage portal. We test the hypothesis that these changes are triggered by the adjoining ocean. Specifically, we employ an advanced numerical ice-flow model to simulate the effects of perturbations at the grounding line on PIG's dynamics. The speed at which these changes are propagated upstream implies a tight coupling between ice-sheet interior and surrounding ocean.
| Type: | Article |
|---|---|
| Title: | Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/2004GL021284 |
| Publisher version: | http://dx.doi.org/10.1029/2004GL021284 |
| Language: | English |
| Additional information: | Copyright 2004 by the American Geophysical Union |
| Keywords: | Pine island glacier, Shelf, Sensitivity, Sheet, Model, Flow, Bay |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/130904 |
Archive Staff Only
 |
View Item |
