Results 81 to 90 of about 5,892 (191)

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

Classification of debris-covered glaciers and rock glaciers in the Andes of central Chile

Geomorphology, 2015
In the Dry Andes of Chile (17 to 35° S), debris-covered glaciers and rock glaciers are differentiated from true glaciers based on the percentage of surface debris cover, thickness of surface debris, and ice content. Internal ice is preserved by an insulating cover of thick debris, which acts as a storage reservoir to release water during the summer and
Janke, Jason R., Bellisario, Antonio C., Ferrando Acuña, Francisco   +2 more
openaire   +2 more sources

Morphometric evolution of Everest region debris-covered glaciers

Geomorphology, 2020
Debris-covered glaciers in the central Himalaya have now experienced several decades of sustained ice loss, manifested predominantly in glacier surface lowering. In particular, glacier surfaces of low longitudinal gradient and low ice surface velocity have developed locally complex surface topographies and undergone profound changes in supraglacial ...
King, O, Turner, AGD, Quincey, DJ, Carrivick, JL   +3 more
openaire   +4 more sources

Analysis of ‘hummocky moraine’ using Structure-from-Motion photogrammetry [PDF]

, 2015
This study presents results of a high-resolution topographic survey of the proglacial area of Austre Lovénbreen, Svalbard. Structure-from-Motion (SfM) was used to generate a digital elevation model (DEM) of the proglacial zone from aerial imagery. This
Tonkin, Toby N., Wickikowski, Anya, Midgley, Nicholas G., Cook, SJ, Cook, Simon; id_orcid, Tonkin, TN, Midgley, NG, Wicikowski, A   +7 more
core  

Decadal evolution of a very small heavily debris-covered glacier in an Alpine permafrost environment

Journal of Glaciology, 2016
Glacier response to climate forcing can be heterogeneous and complex, depending on glacier system characteristics. This article presents the decadal evolution of the Tsarmine Glacier (Swiss Alps), a very small and heavily debris-covered cirque glacier ...
M. CAPT, J.-B. BOSSON, M. FISCHER, N. MICHELETTI, C. LAMBIEL   +4 more
doaj   +1 more source

Glacier Change, Supraglacial Debris Expansion and Glacial Lake Evolution in the Gyirong River Basin, Central Himalayas, between 1988 and 2015

Remote Sensing, 2018
Himalayan glacier changes in the context of global climate change have attracted worldwide attention due to their profound cryo-hydrological ramifications.
Sheng Jiang, Yong Nie, Qiao Liu, Jida Wang, Linshan Liu, Javed Hassan, Xiangyang Liu, Xia Xu   +7 more
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

Downwasting and supraglacial lake evolution on the debris-covered Ngozumpa Glacier, Khumbu Himal, Nepal

, 2015
In recent decades, the downwasting of several debris-covered glaciers in the Himalaya has led to the formation of large and potentially hazardous moraine- dammed lakes.
Hands, Kathryn Ann
core  

Comparison of the meteorology and surface energy fluxes of debris-free and debris-covered glaciers in the southeastern Tibetan Plateau

Journal of Glaciology, 2017
Knowledge of debris-free and debris-covered glaciers is important for understanding the varying response of glaciers to climate change. Measurements at the debris-free Parlung No.
WEI YANG, TANDONG YAO, MEILIN ZHU, YONGJIE WANG   +3 more
doaj   +1 more source

Microbial nitrogen cycling on the Greenland Ice Sheet [PDF]

, 2012
Nitrogen inputs and microbial nitrogen cycling were investigated along a 79 km transect into the Greenland Ice Sheet (GrIS) during the main ablation season in summer 2010. The depletion of dissolved nitrate and production of ammonium (relative to icemelt)
J. Telling, C. Bellas, Wadham, J.L., Hodson, A, I. Nias, Wadham, Jemma L, Tranter, Martyn, J. Cook, M. Stibal, Telling, J., Bellas, Christopher M, A. Hodson, A. M. Anesio, Hodson, A., Cook, J, Sole, A, G. Lis, Nias, Isabel, Tranter, M., Lis, G., Stibal, M, P. Nienow, Anesio, A.M., Stibal, Marek, Nienow, P, Anesio, A. M., Cook, J., Tranter, M, Anesio, Alexandre M, Stibal, M., Telling, J, Bellas, C, Bellas, C., Wadham, JL, Telling, Jon P, Anesio, AM, M. Tranter, Lis, G, Sole, A., Cook, Joe, J. L. Wadham, A. Sole, Wadham, J. L., Nias, I, Nias, I., Nienow, P.   +45 more
core   +1 more source