Results 11 to 20 of about 3,925 (217)

Efficiency of artificial neural networks for glacier ice-thickness estimation: a case study in western Himalaya, India

open access: yesJournal of Glaciology, 2021
Knowledge of glacier volume is crucial for ice flow modelling and predicting the impacts of climate change on glaciers. Rugged terrain, harsh weather conditions and logistic costs limit field-based ice thickness observations in the Himalaya.
Mohd Anul Haq   +2 more
doaj   +1 more source

Thermal structure and basal sliding parametrisation at Pine Island Glacier – a 3-D full-Stokes model study [PDF]

open access: yesThe Cryosphere, 2015
Pine Island Glacier is one of the fastest changing glaciers of the Antarctic Ice Sheet and therefore of scientific interest. The glacier holds enough ice to raise the global sea level significantly (~ 0.5 m) when fully melted.
N. Wilkens   +5 more
doaj   +1 more source

A Bayesian ice thickness estimation model for large-scale applications

open access: yesJournal of Glaciology, 2020
Accurate estimations of ice thickness and volume are indispensable for ice flow modelling, hydrological forecasts and sea-level rise projections. We present a new ice thickness estimation model based on a mass-conserving forward model and a Bayesian ...
Mauro A. Werder   +4 more
doaj   +1 more source

Future high-mountain hydrology: a new parameterization of glacier retreat [PDF]

open access: yesHydrology and Earth System Sciences, 2010
Global warming is expected to significantly affect the runoff regime of mountainous catchments. Simple methods for calculating future glacier change in hydrological models are required in order to reliably assess economic impacts of changes in the water ...
M. Huss   +3 more
doaj   +1 more source

Ensemble Kalman Filtering for Glacier Modeling

open access: yesCoRR, 2022
Working with a two-stage ice sheet model, we explore how statistical data assimilation methods can be used to improve predictions of glacier melt and relatedly, sea level rise. We find that the EnKF improves model runs initialized using incorrect initial conditions or parameters, providing us with better models of future glacier melt.
Corcoran, Emily   +4 more
openaire   +2 more sources

Simulation of Historic Glacier Variations with a Simple Climate-Glacier Model [PDF]

open access: yesJournal of Glaciology, 1988
AbstractGlacier variations during the last few centuries have shown a marked coherence over the globe. Characteristic features are the maximum stand somewhere in the middle of the nineteenth century, and the steady retreat afterwards (with some minor interruptions depending on the particular region).
openaire   +4 more sources

Debris cover and surface melt at a temperate maritime alpine glacier: Franz Josef Glacier, New Zealand [PDF]

open access: yes, 2012
Melt rates on glaciers are strongly influenced by the presence of supraglacial debris, which can either enhance or reduce ablation relative to bare ice.
Brook, Martin S.   +5 more
core   +1 more source

Projected sea-level contributions from tidewater glaciers are highly sensitive to chosen bedrock topography: a case study at Hansbreen, Svalbard

open access: yesJournal of Glaciology, 2023
Calculation of the calving loss of tidewater glaciers depends on accurate bedrock information. In regional to global-scale projections of future tidewater glacier evolution this dependence is problematic.
Marco Möller   +3 more
doaj   +1 more source

Kaolin Model Glaciers [PDF]

open access: yesJournal of Glaciology, 1955
AbstractA mixture of approximately one part of water to two parts of kaolin (china clay) has proved suitable for making model glaciers on scales between 1 : 1000 and 1 : 10,000. The kaolin “glaciers” crevasse and flow realistically, and slide on their beds.
W. V. Lewis, Maynard M. Miller
openaire   +1 more source

Coupling a global glacier model to a global hydrological model prevents underestimation of glacier runoff

open access: yesHydrology and Earth System Sciences, 2022
Abstract. Global hydrological models have become a valuable tool for a range of global impact studies related to water resources. However, glacier parameterization is often simplistic or non-existent in global hydrological models. By contrast, global glacier models do represent complex glacier dynamics and glacier evolution, and as such, they hold the ...
P. Wiersma   +12 more
openaire   +11 more sources

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