Thickening of the ice stream catchments feeding the Filchner-Ronne Ice Shelf, Antarctica
Article first published online: 10 SEP 2005
Copyright 2005 by the American Geophysical Union.
Geophysical Research Letters
Volume 32, Issue 17, September 2005
How to Cite
2005), Thickening of the ice stream catchments feeding the Filchner-Ronne Ice Shelf, Antarctica, Geophys. Res. Lett., 32, L17503, doi:10.1029/2005GL023844., and (
- Issue published online: 10 SEP 2005
- Article first published online: 10 SEP 2005
- Manuscript Accepted: 10 AUG 2005
- Manuscript Revised: 19 JUL 2005
- Manuscript Received: 17 JUN 2005
 Earlier ice-sheet mass-balance estimates disagree with satellite-altimeter-measured thickening of the catchment area that feeds the Filchner-Ronne Ice Shelf, Antarctica. In an effort to reconcile these differences, we generated a new flux-gate mass-balance estimate, using improved elevation and velocity data. Our results show a 39 ± 26 Gton/yr thickening, whereas earlier flux-gate results indicated minor thinning. Our results are consistent with altimeter-derived estimates of elevation change. This suggests that altimeter-observed thickening on the East Antarctic plateau may be the result of some combination of a 20th Century accumulation increase and a continuing response to the ∼50% accumulation increase that began in the early Holocene.