Results 31 to 40 of about 1,006 (158)

Controls on Ice Cliff Distribution and Characteristics on Debris‐Covered Glaciers

Geophysical Research Letters, 2023
Ice cliff distribution plays a major role in determining the melt of debris‐covered glaciers but its controls are largely unknown. We assembled a data set of 37,537 ice cliffs and determined their characteristics across 86 debris‐covered glaciers within ...
Marin Kneib, Catriona L. Fyffe, Evan S. Miles, Shayna Lindemann, Thomas E. Shaw, Pascal Buri, Michael McCarthy, Boris Ouvry, Andreas Vieli, Yota Sato, Philip D. A. Kraaijenbrink, Chuanxi Zhao, Peter Molnar, Francesca Pellicciotti   +13 more
doaj   +1 more source

Brief communication: Thinning of debris-covered and debris-free glaciers in a warming climate [PDF]

The Cryosphere, 2017
Recent geodetic mass-balance measurements reveal similar thinning rates on glaciers with or without debris cover in the Himalaya–Karakoram region. This comes as a surprise as a thick debris cover reduces the surface melting significantly due to its ...
A. Banerjee
doaj   +1 more source

Influence of Supraglacial Debris Thickness on Thermal Resistance of the Glaciers of Chandra Basin, Western Himalaya

Frontiers in Earth Science, 2021
A large number of glaciers in the Hindu-Kush Himalaya are covered with debris in the lower part of the ablation zone, which is continuously expanding due to enhanced glacier mass loss.
Lavkush Kumar Patel, Parmanand Sharma, Ajit Singh, Sunil Oulkar, Bhanu Pratap, Meloth Thamban   +5 more
doaj   +1 more source

Debris thickness of glaciers in the Everest area (Nepal Himalaya) derived from satellite imagery using a nonlinear energy balance model [PDF]

The Cryosphere, 2014
Debris thickness is an important characteristic of debris-covered glaciers in the Everest region of the Himalayas. The debris thickness controls the melt rates of the glaciers, which has large implications for hydrologic models, the glaciers' response to
D. R. Rounce, D. C. McKinney
doaj   +1 more source

Single‐cell Transcriptome Profiling Reveals Gene Regulatory Networks and Key Genes in the Root Epidermis and Cortical Cells Associated with Early Nodulation in Glycine Max

Advanced Science, EarlyView.
Single‐cell transcriptomics of soybean roots soon after rhizobial inoculation reveals epidermal and cortical cell‐specific programs and gene‐regulatory networks acting in symbiosis establishment. We identify an ethylene‐driven regulatory circuit involving WRKY6.3/6.4 transcription factors targeting select Nod19 genes that promotes infection‐thread ...
Yongbin Zhuang, Yu Geng, Xinyu Guo, Chen Wang, Yongjing Sun, Luqi Liu, Li Liu, QianQian Gao, XinFang Zhu, Hongxiang Cao, Gengshuo Zhang, Yunxia Liu, Guobin Zhang, Baoyin Chen, Jinfei Zhang, Xin Hou, Xiaoming Li, Dajian Zhang   +17 more
wiley   +1 more source

Global threats, local opportunities: ice‐related landforms provide refugia for high‐elevation plants and arthropods

Ecography, EarlyView.
Ice‐related landforms in mountain areas have been hypothesized to play a key role in the survival of cold‐adapted species threatened by climate change. However, our understanding of such landforms acting as refugia remains speculative. Here we analyse occurrence data, collected through a standardized sampling at 471 sampling points across the European ...
Mauro Gobbi, Barbara Valle, Mattia Brambilla, Duccio Tampucci, Marco Caccianiga   +4 more
wiley   +1 more source

Quantifying user variability in the traditional X‐ray ice‐rafted‐debris counting technique

Journal of Quaternary Science, EarlyView.
ABSTRACT The flux of icebergs is most commonly constrained in the palaeo‐record by manually counting gravel clasts in sediment core X‐ray images—a trusted method in Quaternary science and palaeoceanography for nearly 40 years. In this study, we explore the reproducibility (user consistency and between‐user variability) of the traditional clast‐counting
Neil McDonald, Tom Bradwell, S. Louise Callard, Jaime L. Toney   +3 more
wiley   +1 more source

Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes

Frontiers in Earth Science, 2023
Rock glaciers are the most abundant (peri) glacial landform in the semiarid Andes (SA, 29–34°S), covering about three times the area of mountain glaciers.
Gonzalo Navarro, Gonzalo Navarro, Rémi Valois, Shelley MacDonell, Shelley MacDonell, Giulia de Pasquale, Juan Pablo Díaz   +6 more
doaj   +1 more source

The art of avoidance: bedsite use, antipredator strategies, and predation risk in white‐tailed deer fawns

The Journal of Wildlife Management, EarlyView.
Horizontal visibility, rather than concealment cover, drove fawn bedsite use and predation risk. Greater field of view decreased the odds of coyote predation, likely by facilitated by early detection. As fawns transitioned from hiders to followers, they shifted from using dense overstory concealment to more open overstory that favored improved escape ...
Tyler R. Obermoller, Eric S. Michel, Joseph K. Bump   +2 more
wiley   +1 more source

Soil and Forest Degradation Driven by Cattle Grazing and Selective Logging in Sub‐Antarctic Nothofagus Ecosystems of Patagonia

Land Degradation &Development, EarlyView.
ABSTRACT Soil and forest degradation driven by chronic land‐use pressures is an increasingly widespread process in forested landscapes worldwide, yet its empirical characterization remains limited, particularly in temperate and sub‐Antarctic ecosystems.
Carlos Zamorano‐Elgueta, Susana Valle, Simona Landi, José Dörner, Luis Cayuela   +4 more
wiley   +1 more source