Results 11 to 20 of about 2,878,749 (332)

Supra-glacial debris cover changes in the Greater Caucasus from 1986 to 2014 [PDF]

open access: yesThe Cryosphere, 2020
Knowledge of supra-glacial debris cover and its changes remain incomplete in the Greater Caucasus, in spite of recent glacier studies. Here we present data of supra-glacial debris cover for 659 glaciers across the Greater Caucasus based on Landsat and ...
L. G. Tielidze   +8 more
doaj   +2 more sources

Upward Expansion of Supra-Glacial Debris Cover in the Hunza Valley, Karakoram, During 1990 ∼ 2019

open access: yesFrontiers in Earth Science, 2020
Supra-glacial debris cover is key to glacier ablation through increasing (thin debris layer) or decreasing (thick debris layer) melt rates, thereby regulating the mass balance of a glacier and its meltwater runoff.
Fuming Xie   +17 more
doaj   +2 more sources

DERIVATION OF SUPRAGLACIAL DEBRIS COVER BY MACHINE LEARNING ALGORITHMS ON THE GEE PLATFORM: A CASE STUDY OF GLACIERS IN THE HUNZA VALLEY [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Calculating the spatial-temporal distribution of supraglacial debris cover on glaciers is essential for understanding mass balance processes, glacier lake outburst floods, hydrological predictions, and glacier fluctuations that have attracted attention ...
F. Xie   +15 more
doaj   +2 more sources

Debris cover and the thinning of Kennicott Glacier, Alaska: in situ measurements, automated ice cliff delineation and distributed melt estimates [PDF]

open access: yesThe Cryosphere, 2021
Many glaciers are thinning rapidly beneath melt-reducing debris cover, including Kennicott Glacier in Alaska where glacier-wide maximum thinning also occurs under debris.
L. S. Anderson   +5 more
doaj   +2 more sources

Large-Scale Debris Cover Glacier Mapping Using Multisource Object-Based Image Analysis Approach

open access: yesRemote Sensing, 2022
Large-scale debris cover glacier mapping can be efficiently conducted from high spatial resolution (HSR) remote sensing imagery using object-based image analysis (OBIA), which works on a group of pixels.
Kavita V. Mitkari   +5 more
doaj   +2 more sources

Mapping of Supra-Glacial Debris Cover in the Greater Caucasus: A Semi-Automated Multi-Sensor Approach

open access: yesGeosciences
Supra-glacial debris cover is important for the control of surface ice melt and glacier retreat in mountain regions. Despite the progress in techniques based on various satellite imagery, the mapping of debris-covered glacier boundaries over large ...
Levan G. Tielidze   +2 more
doaj   +2 more sources

Quantifying Spatiotemporal Changes in Supraglacial Debris Cover in Eastern Pamir from 1994 to 2024 Based on the Google Earth Engine

open access: yesRemote Sensing
Supraglacial debris cover considerably influences sub-debris ablation patterns and the surface morphology of glaciers by modulating the land–atmosphere energy exchange.
Hehe Liu   +6 more
doaj   +2 more sources

Processes at the margins of supraglacial debris cover: Quantifying dirty ice ablation and debris redistribution [PDF]

open access: yesEarth Surface Processes and Landforms, 2020
Current glacier ablation models have difficulty simulating the high‐melt transition zone between clean and debris‐covered ice. In this zone, thin debris cover is thought to increase ablation compared to clean ice, but often this cover is patchy rather ...
Catriona L. Fyffe   +5 more
semanticscholar   +4 more sources

Multi-sensor remote sensing to map glacier debris cover in the Greater Caucasus, Georgia

open access: yesJournal 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   +8 more
doaj   +2 more sources

Debris cover on thaw slumps and its insulative role in a warming climate [PDF]

open access: yesEarth Surface Processes and Landforms, 2020
Thaw slumps in ice‐rich permafrost can retreat tens of metres per summer, driven by the melt of subaerially exposed ground ice. However, some slumps retain an ice‐veneering debris cover as they retreat.
S. Zwieback, J. Boike, P. Marsh, A. Berg
semanticscholar   +4 more sources

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