Karakoram glacier surge dynamics

Journal article


Publication Details

Author(s): Quincey D, Braun M, Bishop M, Hewitt K, Luckman A
Title edited volumes: Geophysical Research Letters
Journal: Geophysical Research Letters
Publisher: American Geophysical Union (AGU)
Publishing place: .
Publication year: 2011
Volume: 38
ISSN: 0094-8276


Abstract


We examine the surges of five glaciers in the Pakistan Karakoram using satellite remote sensing to investigate the dynamic nature of surges in this region and how they may be affected by climate. Surface velocity maps derived by feature-tracking quantify the surge development spatially in relation to the terminus position, and temporally with reference to seasonal weather. We find that the season of surge initiation varies, that each surge develops gradually over several years, and that maximum velocities are recorded within the lowermost 10 km of the glacier. Measured peak surge velocities are between one and two orders of magnitude greater than during quiescence. We also note that two of the glaciers are of a type not previously reported to surge. The evidence points towards recent Karakoram surges being controlled by thermal rather than hydrological conditions, coinciding with high-altitude warming from long-term precipitation and accumulation patterns. Copyright 2011 by the American Geophysical Union.



FAU Authors / FAU Editors

Braun, Matthias Prof. Dr.
Professur für Geographie (Fernerkundung und GIS)


External institutions with authors

Swansea University


How to cite

APA:
Quincey, D., Braun, M., Bishop, M., Hewitt, K., & Luckman, A. (2011). Karakoram glacier surge dynamics. Geophysical Research Letters, 38. https://dx.doi.org/10.1029/2011GL049004

MLA:
Quincey, Duncan, et al. "Karakoram glacier surge dynamics." Geophysical Research Letters 38 (2011).

BibTeX: 

Last updated on 2018-31-08 at 10:10