Results 31 to 40 of about 426,465 (213)

Satellite-observed surging dynamics of North Kunchhang Glacier I in the Eastern Karakoram [PDF]

open access: yesThe Cryosphere
Frequent glacier surges are a distinctive characteristic of Karakoram glaciers, with their occurrence increasing recently, significantly impacting glacier morphology and dynamics.
F. Zhao   +10 more
doaj   +1 more source

Brief communication: The Khurdopin glacier surge revisited – extreme flow velocities and formation of a dammed lake in 2017 [PDF]

open access: yesThe Cryosphere, 2018
Glacier surges occur regularly in the Karakoram, but the driving mechanisms, their frequency and its relation to a changing climate remain unclear. In this study, we use digital elevation models and Landsat imagery in combination with high-resolution ...
J. F. Steiner   +3 more
doaj   +1 more source

Cyclic Surging of Glaciers [PDF]

open access: yesJournal of Glaciology, 1973
AbstractA partly phenomenological theory and model are constructed of cyclically surging glaciers. During the after-surge portion of a surge cycle the lower portion of a glacier becomes increasingly stagnant. The upper part of the glacier gradually becomes more active as both its thickness and the magnitude of its basal shear stress increase.
G. de Q. Robin, J. Weertman
openaire   +1 more source

Recent Surge Behavior of Walsh Glacier Revealed by Remote Sensing Data

open access: yesSensors, 2020
Many surge-type glaciers are present on the St. Elias Mountains, but a detailed study on the surge behavior of the glaciers is still missing. In this study, we used remote sensing data to reveal detailed glacier surge behavior, focusing on the recent ...
Xiyou Fu, Jianmin Zhou
doaj   +1 more source

A surge of the glaciers Skobreen–Paulabreen, Svalbard, observed by time-lapse photographs and remote sensing data [PDF]

open access: yesPolar Research, 2012
We present observations of a surge of the glaciers Skobreen–Paulabreen, Svalbard, during 2003–05, including a time-lapse movie of the frontal advance during 2005, Advanced Spaceborne Thermal Emission (ASTER) imagery and oblique aerial ...
Lene Kristensen, Douglas I. Benn
doaj   +1 more source

Terminus advance, kinematics and mass redistribution during eight surges of Donjek Glacier, St. Elias Range, Canada, 1935 to 2016

open access: yesJournal of Glaciology, 2019
Donjek Glacier has an unusually short and regular surge cycle, with eight surges identified since 1935 from aerial photographs and satellite imagery with a ~12 year repeat interval and ~2 year active phase.
WILLIAM KOCHTITZKY   +6 more
doaj   +1 more source

Characteristics of Glaciers Surging in the Western Pamirs

open access: yesRemote Sensing, 2023
The regional surge patterns and control mechanisms for glaciers in the western Pamirs are unclear. Using remote sensing, more surge-type glaciers have been discovered in the western Pamirs. This provides an opportunity to obtain the integral characteristics of glacier surging.
Zhenfeng Wang   +7 more
openaire   +2 more sources

Investigating the Recent Surge in the Monomah Glacier, Central Kunlun Mountain Range with Multiple Sources of Remote Sensing Data

open access: yesRemote Sensing, 2020
Several glaciers in the Bukatage Massif are surge-type. However, previous studies in this region focused on glacier area and length changes, and more information is needed to support the deep analysis of glacier surge.
Lei Guo   +7 more
doaj   +1 more source

A Mathematical Analysis of Glacier Surges [PDF]

open access: yesSIAM 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 ...
openaire   +2 more sources

Subglacial drainage processes at a High Arctic polythermal valley glacier [PDF]

open access: yes, 2005
Dye-tracer experiments undertaken over two summer melt seasons at polythermal John Evans Glacier, Ellesmere Island, Canada, were designed to investigate the character of the subglacial drainage system and its evolution over a melt season. In both summers,
Nienow, Peter W.   +5 more
core   +1 more source

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