Results 41 to 50 of about 5,053 (191)

Discriminating viscous-creep features (rock glaciers) in mountain permafrost from debris-covered glaciers – a commented test at the Gruben and Yerba Loca sites, Swiss Alps and Chilean Andes [PDF]

The Cryosphere
Viscous-flow features in perennially frozen talus/debris called rock glaciers are being systematically inventoried as part of the global climate-related monitoring of mountain permafrost.
W. Haeberli, L. U. Arenson, J. Wee, C. Hauck, N. Mölg   +4 more
doaj   +1 more source

Modelling steady states and the transient response of debris-covered glaciers [PDF]

The Cryosphere, 2021
Debris-covered glaciers are commonly found in alpine landscapes of high relief and play an increasingly important role in a warming climate. As a result of the insulating effect of supraglacial debris, their response to changes in climate is less direct ...
J. C. Ferguson, A. Vieli
doaj   +1 more source

Glacier branch lines and glacier ice thickness estimation for debris-covered glaciers in the Central Tien Shan

Journal of Glaciology, 2018
Information about the ice volume stored in glaciers is of high importance for sustainable water management in many arid regions of Central Asia. Several methods to estimate the ice volume exist.
TINO PIECZONKA, TOBIAS BOLCH, MELANIE KRÖHNERT, JULIANE PETERS, SHIYIN LIU   +4 more
doaj   +1 more source

Role of Debris Cover in the Thermal Physics of Glaciers [PDF]

Journal of Glaciology, 1986
AbstractA mathematical model is presented of non-stationary melting processes of ice including particles of morainic material. The problem is treated as a Stephen-type one with the phase boundary of ice melting being located under the debris cover. The main terms of the heat-balance equation for a glacier surface are solar radiation and convective heat
A. N. Bozhinskiy, M. S. Krass, V. V. Popovnin   +2 more
openaire   +1 more source

Sub-debris melt rates on southern Inylchek Glacier, central Tian Shan [PDF]

, 2008
Melt rates of glacier surfaces are strongly influenced by the existence of a debris cover. Dependent on thickness and other physical parameters the debris layer can enhance or reduce ablation as compared to bare ice conditions.
Lambrecht, Astrid, Wilfried Hagg, Christoph Mayer, Helm, Achim, Astrid Lambrecht, Mayer, Christoph, Hagg, Wilfried, Achim Helm   +7 more
core   +1 more source

DebDaB: a database of supraglacial debris thickness and physical properties [PDF]

Earth System Science Data
Rocky debris covers around 7.3 % of the global glacier area, influencing ice melt rates and the surface mass balance of glaciers, making the dynamics and hydrology of debris-covered glaciers distinct from those of clean-ice glaciers.
A. Fontrodona-Bach, L. Groeneveld, E. Miles, E. Miles, E. Miles, M. McCarthy, M. McCarthy, M. McCarthy, T. Shaw, V. Melo Velasco, F. Pellicciotti, F. Pellicciotti   +11 more
doaj   +1 more source

Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia

Geosciences, 2018
On the Kamchatka Peninsula, a number of glaciers are covered by thick volcanic debris, which makes their margins difficult to delineate from satellite imagery. Fortunately, high resolution, multi-temporal digital surface models (DSMs) covering the entire
Iestyn D. Barr, Mikhail D. Dokukin, Ioannis Kougkoulos, Stephen J. Livingstone, Harold Lovell, Jakub Małecki, Anton Y. Muraviev   +6 more
doaj   +1 more source

Understanding Complex Debris-Covered Glaciers: Concepts, Issues, and Research Directions

Frontiers in Earth Science, 2021
Understanding the climate-glacier dynamics of debris-covered glaciers is notoriously difficult given a multitude of controlling factors and feedback mechanisms involving climate forcing, debris-load properties, supraglacial water bodies, and multi-scale ...
Da Huo, Michael P. Bishop, Andrew B. G. Bush   +2 more
doaj   +1 more source

Spatial Distribution and Characteristics of Debris-Covered Glaciers in Xinjiang Based on CGI-XJ2020

Remote Sensing
Debris cover is widespread on glaciers and strongly alters their surface albedo, energy balance, and ablation. Using the Chinese Glacier Inventory of Xinjiang 2020 (CGI-XJ2020), this study investigates the spatial distribution of debris-covered glaciers ...
Zexin Zhan, Zhongqin Li, Jianxin Mu, Feiteng Wang, Qibin Liang, Qian Wang, Wei Chen, Yefei Yang, Weibo Zhao   +8 more
doaj   +1 more source

Using climate reanalysis data in conjunction with multi-temporal satellite thermal imagery to derive supraglacial debris thickness changes from energy-balance modelling

Journal of Glaciology, 2021
Surface energy-balance models are commonly used in conjunction with satellite thermal imagery to estimate supraglacial debris thickness. Removing the need for local meteorological data in the debris thickness estimation workflow could improve the ...
Rebecca L. Stewart, Matthew Westoby, Francesca Pellicciotti, Ann Rowan, Darrel Swift, Benjamin Brock, John Woodward   +6 more
doaj   +1 more source