Results 31 to 40 of about 1,053,257 (263)

The state of rock debris covering Earth’s glaciers [PDF]

open access: yesNature Geoscience, 2020
Rock debris can accumulate on glacier surfaces and dramatically reduce glacier melt. The structure of a debris cover is unique to each glacier and sensitive to climate. Despite this, debris cover has been omitted from global glacier models and forecasts of their response to a changing climate. Fundamental to resolving these omissions is a global map of
Sam Herreid, Francesca Pellicciotti
openaire   +2 more sources

Debris-covered glacier systems and associated glacial lake outburst flood hazards: challenges and prospects

open access: yesJournal of the Geological Society, 2021
Glaciers respond sensitively to climate variability and change, with associated impacts on meltwater production, sea-level rise and geomorphological hazards.
A. Racoviteanu   +5 more
semanticscholar   +1 more source

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

open access: yesFrontiers 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   +2 more
doaj   +1 more source

Dynamic Monitoring of Debris-Covered Glacier Surface Velocity and Ice Thickness of Mt.Tomur, Tian Shan, China

open access: yesRemote Sensing, 2022
The Mt.Tomur glaciers, in the Tian Shan mountains of Western China, are usually debris-covered, and due to climate change, glacial hazards are becoming more frequent in this region.
Changbin Bai   +8 more
semanticscholar   +1 more source

CONCEPTUAL FRAMEWORK OF COMBINED PIXEL AND OBJECT-BASED METHOD FOR DELINEATION OF DEBRIS-COVERED GLACIERS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Delineation of the glacier is an important task for understanding response of glaciers to climate. In Himalayan region, most of the glaciers are covered with debris.
R. Sahu, R. D. Gupta
doaj   +1 more source

Estimation of ice ablation on a debris-covered glacier from vertical debris-temperature profiles

open access: yesJournal of Glaciology, 2022
A supraglacial debris layer controls energy transfer to the ice surface and moderates ice ablation on debris-covered glaciers. Measurements of vertical temperature profiles within the debris enables the estimation of thermal diffusivities and sub-debris ...
S. Laha   +5 more
semanticscholar   +1 more source

Internal structure of a Himalayan debris-covered glacier revealed by borehole optical televiewing

open access: yesJournal of Glaciology, 2022
Characterising the structures within glaciers can give unique insight into ice motion processes. On debris-covered glaciers, traditional structural glaciological mapping is challenging because the lower glacier is hidden by the supraglacial debris layer.
K. Miles   +4 more
semanticscholar   +1 more source

The Concept of Steady State, Cyclicity and Debris Unloading of Debris-Covered Glaciers

open access: yesFrontiers in Earth Science, 2021
It can easily be expected that debris-covered glaciers show a different response on external forcing compared to clean-surface glaciers. The supra-glacial debris cover acts as an additional transfer layer for the energy exchange between atmosphere and ...
Christoph Mayer, Carlo Licciulli
doaj   +1 more source

Modelling Debris-Covered Glacier Ablation Using the Simultaneous Heat and Water Transport Model. Part 1: Model Development and Application to North Changri Nup

open access: yesFrontiers in Earth Science, 2022
Modelling ablation of glacier ice under a layer of mineral debris is increasingly important, because the extent of supraglacial debris is expanding worldwide due to glacier recession.
A. Winter-Billington   +5 more
semanticscholar   +1 more source

The Challenge of Non-Stationary Feedbacks in Modeling the Response of Debris-Covered Glaciers to Climate Forcing

open access: yesFrontiers in Earth Science, 2021
Ongoing changes in mountain glaciers affect local water resources, hazard potential and global sea level. An increasing proportion of remaining mountain glaciers are affected by the presence of a surface cover of rock debris, and the response of these ...
Lindsey Nicholson   +3 more
doaj   +1 more source

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