Results 121 to 130 of about 1,053,257 (263)

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

Modelling the dynamics and evolution of debris-covered glaciers

, 2022
Debris-covered glaciers are found in most of the world’s glacierized areas. The presence of debris on the glacier surface affects the ablation rate of the underlying ice. When the debris cover exceeds a thickness of a few centimetres, thermal insulation becomes dominant, thereby reducing the ablation of the underlying ice so that for a given climate ...
openaire   +2 more sources

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Monitoring tropical debris-covered glacier dynamics from high-resolution unmanned aerial vehicle photogrammetry, Cordillera Blanca, Peru

, 2017
. The glaciers of the Cordillera Blanca, Peru, are rapidly retreating and thinning as a result of climate change, altering the timing, quantity and quality of water available to downstream users.
O. Wigmore, B. Mark
semanticscholar   +1 more source

Viscoelastic Modeling of Nocturnal Thermal Fracturing in a Himalayan Debris‐Covered Glacier

Journal of Geophysical Research - Earth Surface, 2019
Recent observations suggest that the nocturnal thermal fracturing of ice occurs at relatively warm temperatures (above −15 °C) at a high‐altitude Himalayan glacier system unless the ice is shielded by a debris mantle.
E. Podolskiy, K. Fujita, Sojiro Sunako, Yota Sato   +3 more
semanticscholar   +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

Geochemical and granulometric fingerprints of 8200 years of westerly wind variability in inner‐fjord lake sediments from Svalbard

Boreas, EarlyView.
The Arctic is warming faster than any other region on Earth. As sea ice diminishes, the surface boundary conditions, such as roughness and air–sea coupling, change and open‐water fetch increases. This may enhance wind forcing on Arctic coasts. Lake sediments can record these changes through the deposition of wind‐blown grains and elements, offering ...
Zofia Stachowska, Willem G. M. van der Bilt, Jan Kavan, Mark F. A. Furze, Ingunn H. Thorseth, Mateusz C. Strzelecki   +5 more
wiley   +1 more source

A 70 year chronicle of the evolution of Echaurren Norte Glacier, Central Andes of Chile

Annals of Glaciology
The Echaurren Norte Glacier mass balance time series is the longest in the Southern Hemisphere, thus it is—together with the Zongo Glacier in Bolivia—a reference glacier by the World Glacier Monitoring Service.
James McPhee, Daniela Carrion, Felipe Ugalde, Katherine Oliva-Muñoz, Noemí Villagra, Gino Casassa, Alexis Segovia, Humberto Peña, Cedomir Marangunic   +8 more
doaj   +1 more source

Ecological variability of Hippopotamus antiquus from the late Early–Middle Pleistocene of Megalopolis Basin (Greece): Evidence for dynamic habitats in a glacial microrefugium

Boreas, EarlyView.
This study investigates the ecology of the extinct European Hippopotamus from the late Early–Middle Pleistocene (c. 900–400 ka) sequence of the Megalopolis Basin, a glacial microrefugium for temperate taxa in southern Greece. Using stable carbon (δ13C) and oxygen (δ18O) isotope analyses and microwear analyses of Hippopotamus dental elements, we ...
Effrosyni Roditi, Gabriele Russo, Hervé Bocherens, George E. Konidaris, Athanassios Athanassiou, Florent Rivals, Vangelis Tourloukis, Eleni Panagopoulou, Panagiotis Karkanas, Katerina Harvati   +9 more
wiley   +1 more source

Fine‐Scale Factors Affecting the Abundance and Thermal Sensitivity of Nonnative Brook Trout in Coldwater Rocky Mountain Streams

Fisheries Management and Ecology, EarlyView.
ABSTRACT The Brook Trout (Salvelinus fontinalis) is a globally distributed nonnative species that threatens native salmonids in coldwater streams. Understanding the factors regulating Brook Trout densities in coldwater refugia is critical to effective management, so we investigated (a) fine‐scale drivers of Brook Trout abundance and (b) factors ...
Nicholas S. Voss, Brett J. Bowersox, Daniel C. Nolfi, Michael C. Quist   +3 more
wiley   +1 more source