Results 51 to 60 of about 979 (164)

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 spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

A roadmap to key traits of invasive Drosophilidae

Biological Reviews, EarlyView.
ABSTRACT Biological invasions have intensified in recent decades, mostly driven by international trade and travel, raising significant concerns, particularly regarding insect pests. Once non‐native species establish, they can disrupt natural ecosystem stability, undermine agroecosystem sustainability and cause substantial economic losses.
Gwenaëlle Deconninck, Bréa Raynaud‐Berton, Méghan Boulembert, Olivier Chabrerie, Aude Couty, Franck Dedeine, Patrice Eslin, Vincent Foray, Romain Georges, Patricia Gibert, Laurence Mouton, Sylvain Pincebourde, David Renault, Christelle Suppo, Hervé Colinet   +14 more
wiley   +1 more source

Ablation process of debris-covered glaciers.

Journal of the Japanese Society of Snow and Ice, 2001
岩屑に覆われた永河の融解過程は複雑で観測が困難なためこれまで詳細な研究が少なかった.当初の研究は岩屑に覆われた部分に重点がおかれ,均一な厚さの岩屑に覆われた氷雪の融解についての実験的研究が多くの研究者によって行われてきた.実際の氷河では岩屑の粒径,組成,厚さなどの分布を広い面にわたって把握することが困難であった.そこで近年発達した衛星画像で得られた表面温度分布から消耗域全体の融解量を推定するモデルが開発された.このモデルにより推定された値は実際の岩屑に覆われた氷河の融解量よりも大きくなった.この原因は岩屑氷河の池や氷壁の部分で大きな熱の吸収が氷河の融解を促進させていることが一因と考えられる.
openaire   +2 more sources

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

Journal 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, Levan G. Tielidze, Kinga Ivan, Mariam Elizbarashvili, Mircea Alexe, Daniel Germain, Sorin Hadrian Petrescu, Olimpiu Traian Pop, George Gaprindashvili   +8 more
doaj   +1 more source

Use of a hydrologic mixing model to examine the roles of meltwater, precipitation and groundwater in the Langtang River basin, Nepal

Annals of Glaciology, 2016
Understanding the hydrology of glacierized catchments is an important step in assessing the vulnerability of water resources to a changing climate. While there have been increased efforts recently to understand the dynamics of Asia's cryosphere, glacier ...
Alāna M. Wilson, Mark W. Williams, Rijan B. Kayastha, Adina Racoviteanu   +3 more
doaj   +1 more source

Quantifying Patterns of Supraglacial Debris Thickness and Their Glaciological Controls in High Mountain Asia

Frontiers in Earth Science, 2021
Mapping patterns of supraglacial debris thickness and understanding their controls are important for quantifying the energy balance and melt of debris-covered glaciers and building process understanding into predictive models.
Karla Boxall, Ian Willis, Alexandra Giese, Qiao Liu   +3 more
doaj   +1 more source

Evaluating deep-learning models for debris-covered glacier mapping

Applied Computing and Geosciences, 2021
In recent decades, mountain glaciers have experienced the impact of climate change in the form of accelerated glacier retreat and other glacier-related hazards such as mass wasting and glacier lake outburst floods. Since there are wide-ranging societal consequences of glacier retreat and hazards, monitoring these glaciers as accurately and repeatedly ...
Zhiyuan Xie, Vijayan K. Asari, Umesh K. Haritashya   +2 more
openaire   +2 more sources

Surface lowering of the debris-covered area of Kanchenjunga Glacier in the eastern Nepal Himalaya since 1975, as revealed by Hexagon KH-9 and ALOS satellite observations [PDF]

The Cryosphere, 2017
This study presents the geodetic mass balance of Kanchenjunga Glacier, one of the largest debris-covered glaciers in the easternmost Nepal Himalaya, which possesses a negative mass balance of −0.18 ± 0.17 m w.e.
D. Lamsal, D. Lamsal, K. Fujita, A. Sakai   +3 more
doaj   +1 more source

Nematodes and rotifers on two Alpine debris-covered glaciers [PDF]

Italian Journal of Zoology, 2015
Debris-covered glaciers (DCGs) are glaciers whose ablation area is mostly covered by a continuous layer of debris, and are considered to be among the continental glacierized environments richest in life. DCG colonization by microorganisms, plants and animals, has been investigated in a few studies, while the meiofauna (metazoans smaller than 2 mm) of ...
R. S. Azzoni, A. Franzetti, D. Fontaneto, A. Zullini, R. Ambrosini   +4 more
openaire   +4 more sources