Results 61 to 70 of about 5,053 (191)

Ablation process of debris-covered glaciers.

Journal of the Japanese Society of Snow and Ice, 2001
岩屑に覆われた永河の融解過程は複雑で観測が困難なためこれまで詳細な研究が少なかった.当初の研究は岩屑に覆われた部分に重点がおかれ,均一な厚さの岩屑に覆われた氷雪の融解についての実験的研究が多くの研究者によって行われてきた.実際の氷河では岩屑の粒径,組成,厚さなどの分布を広い面にわたって把握することが困難であった.そこで近年発達した衛星画像で得られた表面温度分布から消耗域全体の融解量を推定するモデルが開発された.このモデルにより推定された値は実際の岩屑に覆われた氷河の融解量よりも大きくなった.この原因は岩屑氷河の池や氷壁の部分で大きな熱の吸収が氷河の融解を促進させていることが一因と考えられる.
openaire   +2 more sources

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
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Constraints on the timing of debris-covered and rock glaciers: An exploratory case study in the Hólar area, northern Iceland

, 2020
International audienceEighteen samples for 36Cl Cosmic-Ray Exposure (CRE) dating were taken from glacially polished bedrocks, mo- raine boulders, fossil/active rock glaciers and debris-covered glaciers in Fremri-Grjótárdalur and Hóladalur cirques in the ...
Schimmelpfennig, Irene, Tanarro, Luis, M, López-Acevedo, Francisco,, López-Acevedo, Francisco, J, Andrés, Nuria, Sæmundsson, Þorsteinn, Sæmundsson, Þorsteinn, Palacios Estremera, David, Tanarro García, Luis Miguel, A.S.T.E.R. Team, Fernández-Fernández, José, M, De Andrés de Pablo, Nuria, Fernández-Fernández, José,, Tanarro, Luis,, Palacios, David, Brynjólfsson, Skafti, Fernández Fernández, José María, López-Acevedo, Francisco J.   +17 more
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Multi-sensor remote sensing to map glacier debris cover in the Greater Caucasus, Georgia

Journal of Glaciology, 2021
Global warming is causing glaciers in the Caucasus Mountains and around the world to lose mass at an accelerated pace. As a result of this rapid retreat, significant parts of the glacierized surface area can be covered with debris deposits, often making ...
Iulian-Horia Holobâcă, Levan G. Tielidze, Kinga Ivan, Mariam Elizbarashvili, Mircea Alexe, Daniel Germain, Sorin Hadrian Petrescu, Olimpiu Traian Pop, George Gaprindashvili   +8 more
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Rapid sequestration of rock avalanche deposits within glaciers

, 2015
Topographic development in mountainous landscapes is a complex interplay between tectonics, climate and denudation. Glaciers erode valleys to generate headwall relief, and hillslope processes control the height and retreat of the peaks.
Rosser, Nicholas, Dunning, Stuart, Rosser, N.J., McColl, Samuel, Reznichenko, Natalya, McColl, S.T., Dunning, S.A., Reznichenko, N.V.   +7 more
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Quantifying Patterns of Supraglacial Debris Thickness and Their Glaciological Controls in High Mountain Asia

Frontiers in Earth Science, 2021
Mapping patterns of supraglacial debris thickness and understanding their controls are important for quantifying the energy balance and melt of debris-covered glaciers and building process understanding into predictive models.
Karla Boxall, Ian Willis, Alexandra Giese, Qiao Liu   +3 more
doaj   +1 more source

Glacial debris cover and melt water production for glaciers in the Altay, Russia [PDF]

, 2011
Glaciers are important water storages on a seasonal and long-term time scale. Where high mountains are surrounded by arid lowlands, glacier runoff is an important source of water during the growing season.
Narozhny, Y., W. Hagg, A. Lambrecht, Lambrecht, A., Mayer, C., Hagg, Wilfried, Y. Narozhny, C. Mayer   +7 more
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Use of a hydrologic mixing model to examine the roles of meltwater, precipitation and groundwater in the Langtang River basin, Nepal

Annals of Glaciology, 2016
Understanding the hydrology of glacierized catchments is an important step in assessing the vulnerability of water resources to a changing climate. While there have been increased efforts recently to understand the dynamics of Asia's cryosphere, glacier ...
Alāna M. Wilson, Mark W. Williams, Rijan B. Kayastha, Adina Racoviteanu   +3 more
doaj   +1 more source

Melt Model Intercomparison Documents

, 2019
These documents describe and provide guidelines for the Melt Model Intercomparison project by the IACS Working Group on Debris-covered glaciers.
Working Group Debris-covered Glaciers (8165157), Working Group Debris-covered Glaciers   +1 more
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Supraglacial Ponds Regulate Runoff From Himalayan Debris‐Covered Glaciers [PDF]

Geophysical Research Letters, 2017
AbstractMeltwater and runoff from glaciers in High Mountain Asia is a vital freshwater resource for one‐fifth of the Earth's population. Between 13% and 36% of the region's glacierized areas exhibit surface debris cover and associated supraglacial ponds whose hydrological buffering roles remain unconstrained.
Tristram D. L. Irvine‐Fynn, Philip R. Porter, Ann V. Rowan, Duncan J. Quincey, Morgan J. Gibson, Jonathan W. Bridge, C. Scott Watson, Alun Hubbard, Neil F. Glasser   +8 more
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