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Tidewater Glacier Surges Initiated at the Terminus [PDF]
Journal of Geophysical Research F: Earth Surface, 2018 AbstractThere have been numerous reports that surges of tidewater glaciers in Svalbard were initiated at the terminus and propagated up‐glacier, in contrast with downglacier‐propagating surges of land‐terminating glaciers. Most of these surges were poorly documented, and the cause of this behavior was unknown.
Christopher Nuth +2 more
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A Mathematical Analysis of Glacier Surges [PDF]
SIAM Journal on Applied Mathematics, 1989 This paper describes the phenomena of glacier surges and presents a mathematical model based on realistic descriptions of glacier physics, which purports to describe the main features of the flow. The analysis reveals and predicts a variety of phenomena, many of which have been observed to occur, and gives explicit estimates for such quantities as ...
A C Fowler
exaly +5 more sources
Heterogeneity in Karakoram glacier surges [PDF]
Journal of Geophysical Research F: Earth Surface, 2015 AbstractMany Karakoram glaciers periodically undergo surges during which large volumes of ice and debris are rapidly transported downglacier, usually at a rate of 1–2 orders of magnitude greater than during quiescence. Here we identify eight recent surges in the region and map their surface velocities using cross‐correlation feature tracking on optical
Duncan Quincey +2 more
exaly +10 more sources
A general theory of glacier surges [PDF]
Journal of Glaciology, 2019 We present the first general theory of glacier surging that includes both temperate and polythermal glacier surges, based on coupled mass and enthalpy budgets.
D. I. Benn +3 more
doaj +6 more sources
Glacier Surges and Seasonal Speedups Integrated Into a Single, Enthalpy‐Based Model Framework [PDF]
Geophysical Research LettersGlacier speedups occur on daily to centennial timescales. While basal water and subglacial drainage configuration are thought to drive glacier speedups across these timescales, it remains unclear whether this forcing always occurs through the same ...
Thomas Dylan Mikesell +2 more
exaly +3 more sources
Characterization of Three Surges of the Kyagar Glacier, Karakoram
Remote Sensing, 2023 Glaciers experience periodic variations in flow velocity called surges, each of which influences the glacier’s characteristics and the occurrence of downstream disasters (e.g., ice-dammed lake outburst floods).
Zhen Zhang, Zongli Jiang, Shiyin Liu
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Evaluating glacier surges in Karakoram region using earth observation data [PDF]
Data in Brief, 2020 A glacier is said to be in a state of surge if it has abnormally high velocity and advances very rapidly (10–100 times faster than normal) in a short period of time (lasting few months to a few years).
Ulfat Majeed, Irfan Rashid
doaj +2 more sources
Remote Sensing, 2023 Even though surge-type glaciers make up only a small percentage of all glaciers, related research contributes considerably to the general understanding of glacier flow mechanisms.
Thorsten Seehaus, Matthias Braun
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Observed positive feedback between surface ablation and crevasse formation drives glacier acceleration and potential surge [PDF]
Nature CommunicationsSudden glacier acceleration and instability, e.g. surges, strongly influence glacier ice loss. However, lack of in-situ observations of the involved processes hampers our ability to understand, quantify and model such a role.
Ugo Nanni +11 more
doaj +2 more sources
Remote Sensing, 2019 Collapsing valley glaciers leaving their bed to rush down a flat hill slope at the speed of a racing car are so far rare events. They have only been reported for the Kolkaglacier (Caucasus) in 2002 and the two glaciers in the Aru mountain range (Tibet ...
Frank Paul
exaly +3 more sources