Results 61 to 70 of about 979 (164)

Mapping Debris-Covered Glaciers Using High-Resolution Imagery (GF-2) and Deep Learning Algorithms

Remote Sensing
Glacier inventories are fundamental in understanding glacier dynamics and glacier-related environmental processes. High-resolution mapping of glacier outlines is lacking, although high-resolution satellite images have become available in recent decades ...
Xin Yang, Fuming Xie, Shiyin Liu, Yu Zhu, Jinghui Fan, Hongli Zhao, Yuying Fu, Yunpeng Duan, Rong Fu, Siyang Guo   +9 more
doaj   +1 more source

Spatial and temporal distribution of glaciers, debris-covered glaciers and rock glaciers during the last deglaciation in the Valley of the Bonaigua (Central Pyrenees)

Cuadernos de Investigación Geográfica, 2020
The application of the paleogeographic method to the study of glacial landforms and rock glaciers allows their morphometric and sedimentological characterization, the establishment of a detailed morphostratigraphic sequence and a chronological proposal ...
J. Ventura-Roca
doaj   +1 more source

Proposal for geomorphological mapping of debris-covered and rock glaciers and its application to Tröllaskagi Peninsula (Northern Iceland)

Journal of Maps, 2018
This work defends and applies a new proposal for mapping debris-covered glaciers and rock glaciers. This proposal combines highly accurate traditional methods, such as manual geomorphological photointerpretation, with novel digital techniques.
Luis M. Tanarro, David Palacios, José J. Zamorano, Nuria Andrés   +3 more
doaj   +1 more source

Thickness estimation of supraglacial debris above ice cliff exposures using a high-resolution digital surface model derived from terrestrial photography

Journal of Glaciology, 2017
The thickness of supraglacial debris cover controls how it impacts the ablation rate of underlying glacier ice, yet this quantity remains challenging to measure, particularly at glacier scales.
L. NICHOLSON, J. MERTES
doaj   +1 more source

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

Geosciences
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, George Iacob, Iulian Horia Holobâcă   +2 more
doaj   +1 more source

Dynamics of debris-covered glaciers

, 2021
The presence of a supraglacial debris layer affects the melt of underlying ice which causes debris-covered glaciers to respond differently to climate forcing compared to clean-ice glaciers. To further complicate matters, supraglacial debris cover is not constant in time, but changes as a consequence of redistribution by ice flow, melt-out of englacial ...
openaire   +1 more source

Summer Mass Balance and Surface Velocity Derived by Unmanned Aerial Vehicle on Debris-Covered Region of Baishui River Glacier No. 1, Yulong Snow Mountain

Remote Sensing, 2020
Glacier retreat is a common phenomenon in the Qinghai-Tibetan Plateau (QTP) with global warming during the past several decades, except for several mountains, such as the glaciers in the Karakoram and the western Kunlun Mountains.
Yanjun Che, Shijin Wang, Shuhua Yi, Yanqiang Wei, Yancong Cai   +4 more
doaj   +1 more source

Surface facies analysis of the Gangotri and neighbouring glaciers, central Himalaya

Science of Remote Sensing
Glaciers are primarily monitored using medium-to-high resolution satellite data, undermining the potential of coarse-resolution data. In pursuance of this, high resolution 10 m super-resolved glacier maps derived from 56 m coarse-resolution AWiFS data ...
Bisma Yousuf, Aparna Shukla, Iram Ali, Purushottam Kumar Garg, Siddhi Garg   +4 more
doaj   +1 more source

Debris-covered glaciers mapping based on machine learning and multi-source satellite images over Eastern Pamir

Big Earth Data
Debris-covered glaciers present significant challenges for accurately mapping and monitoring glacier dynamics, particularly in regions like the Eastern Pamir Plateau.
Aamir Feroz, Shuang Liang, Gunayu Li, Xinwu Li, Zahid Ur Rahman, Bojin Yang   +5 more
doaj   +1 more source

A low-cost and open-source approach for supraglacial debris thickness mapping using UAV-based infrared thermography [PDF]

The Cryosphere
Debris-covered glaciers exist in many mountain ranges and play an important role in the regional water cycle. However, modelling the surface mass balance, runoff contribution and future evolution of debris-covered glaciers is fraught with uncertainty as ...
J. Messmer, A. R. Groos, A. R. Groos
doaj   +1 more source