Results 51 to 60 of about 11,513 (217)

Insights into Red Deer Ecology during the Late Epigravettian: New isotopic evidence from Riparo Tagliente (Italian Prealps)

Journal of Quaternary Science, EarlyView.
Abstract The transition from the Last Glacial Maximum to the Late Glacial marked a shift from the cold conditions of Greenland Stadial‐2 (GS‐2) to the warmer phases of Greenland Interstadial‐1 (GI‐1), enabling the reoccupation of Alpine regions by Late Palaeolithic hunter‐gatherers.
Mahym Amanova, Dorothée G. Drucker, Federica Fontana   +2 more
wiley   +1 more source

Widespread and accelerating glacier retreat on the Lyngen Peninsula, northern Norway, since their ‘Little Ice Age’ maximum

Journal of Glaciology, 2018
The recession of mountain glaciers worldwide is increasing global sea level and, in many regions, human activities will have to adapt to changes in surface hydrology.
CHRIS R. STOKES, LISS M. ANDREASSEN, MATTHEW R. CHAMPION, GEOFFREY D. CORNER   +3 more
doaj   +1 more source

Seasonal changes in submarine melting mechanisms controlling frontal ablation of Hansbreen, Svalbard

Journal of Glaciology, 2023
We describe the annual pattern of frontal ablation driven by submarine melting mechanisms at the Hansbreen terminus: these are reflected in the intensity and spatial distribution of calving events.
Michał Ciepły, Dariusz Ignatiuk, Mateusz Moskalik, Jacek Jania, Bartłomiej Luks, Oskar Głowacki, Kacper Wojtysiak   +6 more
doaj   +1 more source

2010_2016年国际极地研究综合评价分析 [PDF]

, 2017
极地在气候系统、全球资源和战略中具有重要意义，并且随着人类对它的开发，极地研究也日益成为地球与环境科学领域的核心和热点议题。基于Web of Science 数据库收录的2010 － 2016 年SCI文章，利用文献计量方法，结合国际政策和战略，分析了2010 － 2016 年极地研究的发展格局和变化趋势。结果表明: ( 1) 近年来国际极地研究论文年发文量总体呈持续增长态势，年均增幅为3． 6%。( 2)发达国家及高纬度国家是极地领域的主要研究力量，美国占据绝对优势。( 3) 在SCI ...
吴秀平, 张树良, 熊永兰, 牛艺博, 赵纪东   +4 more
core  

Late Quaternary climatic variability in the Eastern Mediterranean recorded in Hermes Cave, Corinth Rift, Greece

Journal of Quaternary Science, EarlyView.
ABSTRACT The Greek peninsula lies at the intersection of major atmospheric circulation systems, making it a key location for reconstructing past climate variability in the Eastern Mediterranean. In this study, we present a new high‐resolution multi‐proxy speleothem record from Hermes Cave, located on the shoulder of the Corinth Rift in southern Greece.
Ch. Pennos, S. Pechlivanidou, S. Modestou, A. Persoiu, S.F.M. Breitenbach, U. Ninnemann, R.L. Gawthorpe, J. Maccali, S‐E. Lauritzen, R.Ø. Skoglund, Th. Thuesen   +10 more
wiley   +1 more source

Mass and enthalpy budget evolution during the surge of a polythermal glacier: a test of theory

Journal of Glaciology, 2019
Analysis of a recent surge of Morsnevbreen, Svalbard, is used to test predictions of the enthalpy balance theory of surging. High-resolution time series of velocities, ice thickness and crevasse distribution allow key elements of the enthalpy (internal ...
Douglas I. Benn, Robert L. Jones, Adrian Luckman, Johannes J. Fürst, Ian Hewitt, Christian Sommer   +5 more
doaj   +1 more source

Permafrost Distribution in the Canadian Rockies: Key Variables Influencing Patch‐Scale Variability

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The spatial distribution of permafrost in mountainous regions is influenced by various factors such as topography, climate, vegetation, and substrate. Despite the existence of comprehensive permafrost maps at national and global levels, they fail to accurately represent the patch‐scale (e.g., < 25 m) permafrost distribution in characteristic ...
Gerardo Zegers, Masaki Hayashi, Pablo A. Mendoza   +2 more
wiley   +1 more source

A fully-coupled 3D model of a large Greenlandic outlet glacier with evolving subglacial hydrology, frontal plume melting and calving

Journal of Glaciology, 2022
We present the first fully coupled 3D full-Stokes model of a tidewater glacier, incorporating ice flow, subglacial hydrology, plume-induced frontal melting and calving. We apply the model to Store Glacier (Sermeq Kujalleq) in west Greenland to simulate a
Samuel J. Cook, Poul Christoffersen, Joe Todd   +2 more
doaj   +1 more source

Snow metamorphism: a fractal approach

, 2010
Snow is a porous disordered medium consisting of air and three water phases: ice, vapour and liquid. The ice phase consists of an assemblage of grains, ice matrix, initially arranged over a random load bearing skeleton.
A. D. Frolov, Anna Carbone, Barbara Frigo, Bernardino M. Chiaia, C. W. Emerson, Christian Türk, D. L. Turcotte, V. N. Golubev   +7 more
core   +1 more source

Experimental Investigation of Moisture Movement During Freeze–Thaw Cycles and Its Effect on Physical Rock Weathering in Low‐Porosity Alpine Limestone

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley   +1 more source