Basal shear stress of the Ross ice streams from control method inversions

We used control method inversions to determine the basal shear stress beneath the Ross ice streams where new high‐resolution velocity data sets have recently become available. The inversion algorithm was adapted from an earlier viscous bed algorithm to allow solution for the basal shear stress corre...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Geophysical Research - Solid Earth 2004-09, Vol.109 (B9), p.B09405-n/a
Main Authors: Joughin, Ian, MacAyeal, Douglas R., Tulaczyk, Slawek
Format: Article
Language:English
Subjects:
Antarctica
Exploration Geophysics
Glaciology
Global Change
Hydrology
ice streams
Information Related to Geographic Region
Inverse theory
Mathematical Geophysics
Remote sensing
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:We used control method inversions to determine the basal shear stress beneath the Ross ice streams where new high‐resolution velocity data sets have recently become available. The inversion algorithm was adapted from an earlier viscous bed algorithm to allow solution for the basal shear stress corresponding to a weak plastic bed. We performed several experiments using synthetic data to determine the quality of the inversions. These experiments indicate that with high‐quality surface elevation data (e.g., errors
ISSN:0148-0227
2156-2202
DOI:10.1029/2003JB002960