Results 21 to 30 of about 2,488,470 (307)

Rock glaciers on the run – understanding rock glacier landform evolution and recent changes from numerical flow modeling [PDF]

The Cryosphere, 2016
Rock glaciers are landforms that form as a result of creeping mountain permafrost which have received considerable attention concerning their dynamical and thermal changes.
J. Müller, A. Vieli, I. Gärtner-Roer
doaj   +1 more source

A unified model for transient subglacial water pressure and basal sliding

Journal of Glaciology, 2022
Changes in water pressure at the beds of glaciers greatly modify their sliding rate, affecting rates of ice mass loss and sea level change. However, there is still no agreement about the physics of subglacial sliding or how water affects it.
Victor C. Tsai, Laurence C. Smith, Alex S. Gardner, Helene Seroussi   +3 more
doaj   +1 more source

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

Hydrology 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, P. Wiersma, J. Aerts, H. Zekollari, H. Zekollari, H. Zekollari, M. Hrachowitz, N. Drost, M. Huss, M. Huss, M. Huss, E. H. Sutanudjaja, R. Hut   +12 more
openaire   +12 more sources

Sustained retreat of the Pine Island Glacier [PDF]

, 2013
We use satellite observations to show that, between 1992 and 2011, the Pine Island Glacier hinge line retreated at a rate of 0.95 ± 0.09 km yr−1 despite a progressive steepening and shoaling of the glacier surface and bedrock slopes, respectively, which ...
Vaughan, D. G., Gourmelen, N., Kim, S. W., Wingham, D. J., Shepherd, A., Park, J. W.   +5 more
core   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming. [PDF]

Adv Sci (Weinh)
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Du J, Niu Z, Wang Y, Zhou S, Yang Y, Wei X, Niu H, Zhang Y, Xia A, Liu Y, Hao Y, Xue K, Wu B, Zhao X, Yao T, Chen Y.   +15 more
europepmc   +2 more sources

Including debris cover effects in a distributed model of glacier ablation [PDF]

, 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

Contrasts in the response of adjacent fjords and glaciers to ice-sheet surface melt in West Greenland

Annals of Glaciology, 2016
Neighboring tidewater glaciers often exhibit asynchronous dynamic behavior, despite relatively uniform regional atmospheric and oceanic forcings. This variability may be controlled by a combination of local factors, including glacier and fjord geometry ...
Timothy C. Bartholomaus, Leigh A. Stearns, David A. Sutherland, Emily L. Shroyer, Jonathan D. Nash, Ryan T. Walker, Ginny Catania, Denis Felikson, Dustin Carroll, Mason J. Fried, Brice P. Y. Noël, Michiel R. Van Den Broeke   +11 more
doaj   +1 more source

Recent glacier decline in the Kerguelen Islands (49°S, 69°E) derived from modeling, field observations, and satellite data [PDF]

, 2015
Date of Acceptance: 28/02/2015The retreat of glaciers in the Kerguelen Islands (49°S, 69°E) and their associated climatic causes have been analyzed using field data and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images to validate a ...
Gilbert, A., Jomelli, Vincent, Deborah Verfaillie, Vincent Jomelli, Hubert Gallée, Frenot, Y., Rinterknecht, Vincent, Dumont, Marie, Gallée, Hubert, Gallée, H., Rinterknecht, V., Menegoz, Martin, Frenot, Yves, Brunstein, D., Gilbert, Adrien, Gilbert, Vincent Favier, Verfaillie, D., Menegoz, M., Martin Menegoz, Dumont, M., Adrien Gilbert, Brunstein, Daniel, Jomelli, V., Daniel Brunstein, Favier, V., Favier, Vincent, Marie Dumont, Verfaillie, Deborah, Yves Frenot, Gilbert, Adrien,, Vincent Rinterknecht   +30 more
core   +1 more source

Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland [PDF]

, 2002
The relationship between the evolution of subglacial drainage system morphology and spatial patterns of glacier surface velocity was investigated using dye tracing experiments and ground surveying throughout the 1995 melt season at Haut Glacier d'Arolla,
Ian Willis, Sharp, M., Wohlleben, T., Peter Nienow, Mair, D., Martin Sharp, Willis, I., Trudy Wohlleben, Douglas Mair, Nienow, P.   +9 more
core   +1 more source

Ice‐Dynamical Glacier Evolution Modeling—A Review

Reviews of Geophysics, 2022
AbstractGlaciers play a crucial role in the Earth System: they are important water suppliers to lower‐lying areas during hot and dry periods, and they are major contributors to the observed present‐day sea‐level rise. Glaciers can also act as a source of natural hazards and have a major touristic value.
Zekollari, H., Huss, M., Farinotti, D., Lhermitte, S.   +3 more
openaire   +7 more sources