Ice stream D flow speed is strongly modulated by the tide beneath the Ross Ice Shelf

The flow velocity of ice stream D, West Antarctica has been measured to vary by a factor of three over the course of a day. These fluctuations are measured at the grounding line as well as upstream of the grounding line in the ice plain of ice stream D. The diurnal velocity fluctations appear to be...

Full description

Saved in:
Bibliographic Details
Published in:Geophysical research letters 2003-04, Vol.30 (7), p.1361-n/a
Main Authors: Anandakrishnan, S., Voigt, D. E., Alley, R. B., King, M. A.
Format: Article
Language:English
Subjects:
Geodesy and Gravity
Glaciology
Hydrology
Marine
Snow and ice
Tides—ocean
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The flow velocity of ice stream D, West Antarctica has been measured to vary by a factor of three over the course of a day. These fluctuations are measured at the grounding line as well as upstream of the grounding line in the ice plain of ice stream D. The diurnal velocity fluctations appear to be driven by the tide beneath the Ross Ice Shelf. These results suggest that there is significant, and heretofore poorly understood, influence of the ocean tide and of the ice shelf on the dynamics of ice stream flow.
ISSN:0094-8276
1944-8007
DOI:10.1029/2002GL016329