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A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction
- Source :
- Journal of Glaciology, Vol 68, Pp 891-900 (2022)
- Publication Year :
- 2022
- Publisher :
- Cambridge University Press, 2022.
-
Abstract
- Upernavik Isstrøm, a marine glacier undergoing rapid retreat, is simulated by forcing a numerical model with ocean-driven melt. A review of processes driving retreat led us to hypothesize that a glacier undergoing rapid retreat may be less sensitive to perturbations in the balance of forces than a glacier that is undergoing moderate changes or a glacier in steady state. Numerical experiments suggest this is not the case, and that a system in rapid retreat is as sensitive to basal traction perturbations as a system that is near to steady state. This result is important when considering other glacier systems experiencing marine-forced retreat. While the iceāocean interface is of primary importance, additional perturbations from meltwater-forced decoupling of the glacier from its bed continue to feature in glacier dynamics.
Details
- Language :
- English
- ISSN :
- 00221430 and 17275652
- Volume :
- 68
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Glaciology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.07b26d0dd7464b2c8b1f62273de5401f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1017/jog.2022.5