Results 41 to 50 of about 3,925 (217)

Instabilities on Alpine temperate glaciers: new insights arising from the numerical modelling of Allalingletscher (Valais, Switzerland) [PDF]

Natural Hazards and Earth System Sciences, 2012
The processes leading to a glacier instability depend on the thermal properties of the contact between the glacier and its bedrock. Assessing the stability of temperate glacier (i.e. the glacier can slide on its bedrock) remains problematic.
J. Faillettaz, M. Funk, D. Sornette
doaj   +1 more source

An energy-balance model for debris-covered glaciers including heat conduction through the debris layer [PDF]

, 2010
Extensive covers of supraglacial debris are often present in glacier ablation areas, and it is essential to assess exactly how the debris affects glacier melt rates.
Brock, B.W., Reid, Tim, Ben W. Brock, Reid, T.D., Brock, Benjamin, Tim D. Reid   +5 more
core   +1 more source

Including debris cover effects in a distributed model of glacier ablation

, 2012
Distributed glacier melt models generally assume that the glacier surface consists of bare exposed ice and snow. In reality, many glaciers are wholly or partially covered in layers of debris that tend to suppress ablation rates.
Reid, Tim, Carenzo, Marco, Brock, Benjamin, Pellicciotti, Francesca   +3 more
core   +1 more source

The 1982/83 surge and antecedent quiescent phase of Variegated Glacier: revising the original dataset for application in flow line models

Journal of Glaciology, 2017
The extensive dataset of Variegated Glacier's 1982/83 surge and antecedent quiescent phase is fragmentary and predominantly of flow line nature. Applying the raw centre line data in a flow line model to conduct research into the mechanism behind ...
SHARON VAN GEFFEN, JOHANNES OERLEMANS
doaj   +1 more source

Air temperature distribution and energy balance modelling of a debris-covered glacier

, 2016
Near-surface air temperature is an important determinant of the surface energy balance of glaciers that is often represented by constant linear temperature gradients in models.
Brock, B.W., Shaw, Thomas, Shaw, Thomas E., Diotri, Fabrizio, Pellicciotti, F., Brock, Ben W., Diotri, F., Shaw, T.E., Fyffe, Catriona, Rutter, Nick, Rutter, N., Fyffe, Catriona L., Brock, Benjamin, Pellicciotti, Francesca   +13 more
core   +1 more source

A particle based simulation model for glacier dynamics [PDF]

, 2013
A particle-based computer simulation model was developed for investigating the dynamics of glaciers. In the model, large ice bodies are made of discrete elastic particles which are bound together by massless elastic beams.
Timonen, J., Moore, J. C., J. A. Åström, T. Zwinger, Astrom, J. A., D. Benn, J. C. Moore, Zwinger, T., Tallinen, T., T. Tallinen, T. I. Riikilä, Benn, D., J. Timonen, Riikila, T. I.   +13 more
core   +1 more source

Modelling accumulation of a high-altitude Himalayan glacier

Journal of Glaciology
Glacier mass-balance modelling relies on parameterizations to distribute meteorological variables such as precipitation and air temperature over glacier surfaces.
Benjamin Graves, Tom Matthews, L. Baker Perry, Tamsin Edwards, Richard Taylor, Fanny Brun, Patrick Wagnon, Arbindra Khadka, Dibas Shrestha   +8 more
doaj   +1 more source

Sensitivity of grounding line dynamics to the choice of the friction law

Journal of Glaciology, 2017
Basal slip accounts for a large part of the flow of ice streams draining ice from Antarctica and Greenland into the ocean. Therefore, an appropriate representation of basal slip in ice flow models is a prerequisite for accurate sea level rise projections.
JULIEN BRONDEX, OLIVIER GAGLIARDINI, FABIEN GILLET-CHAULET, GAËL DURAND   +3 more
doaj   +1 more source

Representing moisture fluxes and phase changes in glacier debris cover using a reservoir approach

, 2014
Due to the complexity of treating moisture in supraglacial debris, surface energy balance models to date have neglected moisture infiltration and phase changes in the debris layer.
Essery, Richard, Bush, A. B.G., A. B. G. Bush, Maussion, F., Brock, B. W., Nicholson, Lindsey, Bush, Andrew, L. I. Nicholson, Collier, Emily, F. Maussion, Maussion, Fabien, Collier, E., Nicholson, L. I., R. Essery, Brock, Benjamin, Essery, R., E. Collier, B. W. Brock   +17 more
core   +1 more source

Glacial lake outburst flood hazard assessment by satellite Earth observation in the Himalayas (Chomolhari area, Bhutan) [PDF]

Geographica Helvetica, 2019
A case study of glacial lakes outburst flood (GLOF) hazard assessment by satellite Earth observation (EO) and numerical modelling is presented for the supraglacial and ice-contact lakes on Thangothang Chhu glacier, Chomolhari area (Bhutan).
C. Scapozza, C. Ambrosi, M. Cannata, T. Strozzi   +3 more
doaj   +1 more source