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On non-dimensional forms of basal sliding laws and flow laws for ice-sheet and glacier modelling

open access: greenJournal of Glaciology
Ice sheets and glaciers flow through basal sliding and internal deformation, each governed by physical laws commonly expressed as power-law relations. These formulations include coefficients—the sliding coefficient and rate factor—whose values and units ...
Ralf Greve
doaj   +2 more sources

Modelling regional glacier length changes over the last millennium using the Open Global Glacier Model [PDF]

open access: yesThe Cryosphere, 2020
A large majority of the direct observational record for glacier changes falls within the industrial period, from the 19th century onward, associated with global glacier retreat.
D. Parkes, H. Goosse
doaj   +4 more sources

Mid-Holocene thinning of David Glacier, Antarctica: chronology and controls [PDF]

open access: yesThe Cryosphere, 2021
Quantitative satellite observations only provide an assessment of ice sheet mass loss over the last four decades. To assess long-term drivers of ice sheet change, geological records are needed. Here we present the first millennial-scale reconstruction of
J. Stutz   +23 more
doaj   +1 more source

Modelling supraglacial debris-cover evolution from the single-glacier to the regional scale: an application to High Mountain Asia [PDF]

open access: yesThe Cryosphere, 2022
Currently, about 12 %–13 % of High Mountain Asia’s glacier area is debris-covered, which alters its surface mass balance. However, in regional-scale modelling approaches, debris-covered glaciers are typically treated as clean-ice glaciers, leading to a ...
L. Compagno   +15 more
doaj   +1 more source

Ice-flow model emulator based on physics-informed deep learning

open access: yesJournal of Glaciology, 2023
Convolutional neural networks (CNN) trained from high-order ice-flow model realisations have proven to be outstanding emulators in terms of fidelity and computational performance.
Guillaume Jouvet, Guillaume Cordonnier
doaj   +1 more source

Coupled 3-D full-Stokes modelling of tidewater glaciers

open access: yesAnnals of Glaciology, 2022
Tidewater glaciers are an important and difficult part of the cryosphere to study owing to their complex nature and often inaccessible and physically challenging environments. The interaction of glacier and fjord processes furthermore presents particular
Samuel J. Cook   +2 more
doaj   +1 more source

Modelling evolution of a large, glacier-fed lake in the Western Indian Himalaya

open access: yesScientific Reports, 2023
In this study, we simulated the evolution of a large glacier-fed lake called the Gepan Gath lake located in Western Himalayas by numerically modelling the evolution of the Gepan Gath glacier that feeds the lake.
Prateek Gantayat, RAAJ Ramsankaran
doaj   +1 more source

Energy mass balance and temperature-index melt modelling of Werenskioldbreen, Svalbard [PDF]

open access: yesPolish Polar Research, 2022
Studying the reaction of glaciers to climate warming and the interactions of ice masses with the atmosphere is cognitively highly significant and contributes to understanding the climate change.
Dariusz Ignatiuk
doaj   +1 more source

A note on the snout

open access: yesJournal of Glaciology, 2023
The shallow ice approximation for glaciers and ice sheets is a degenerate model in which the ice surface slope at the margin may be infinite. This result is due to the neglect of the otherwise small longitudinal stress terms.
A.C. Fowler
doaj   +1 more source

The role of glacier changes and threshold definition in the characterisation of future streamflow droughts in glacierised catchments [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Glaciers are essential hydrological reservoirs, storing and releasing water at various timescales. Short-term variability in glacier melt is one of the causes of streamflow droughts, here defined as deficiencies from the flow regime.
M. Van Tiel   +8 more
doaj   +1 more source

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