Results 41 to 50 of about 129,372 (223)

Holocene vegetation dynamics of Grande Terre (Kerguelen Islands) inferred from sedimentary ancient DNA

Journal of Quaternary Science, EarlyView.
ABSTRACT While the Antarctic region has experienced significant climatic changes over the Holocene, few high‐resolution records have examined their effects on the local biota. In order to understand past ecological shifts and forecast future changes, it is important to obtain high‐resolution palaeoecological records from this region.
Xaali O'Reilly‐Berkeley, Aloïs Revéret, Youri Lammers, Maaike Zwier, Anne E. Bjune, Fabien Arnaud, Jostein Bakke, Sandra Nogué, Inger G. Alsos   +8 more
wiley   +1 more source

New geochronological constraints on Late Pleistocene glaciation in the southern Cadí Massif, SE Pyrenees

Journal of Quaternary Science, EarlyView.
ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva, J. Ventura, A. Çiner, M. A. Sarıkaya, J. Bonsoms, K. M. Wilcken   +5 more
wiley   +1 more source

Internal Permafrost Structure of Geomorphologically Distinct Palsas in Northern Sweden Revealed by Quasi‐3D ERT

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Permafrost in northern peatlands occurs within individual palsas or extensive peat plateaus and controls local carbon storage. These permafrost landforms are complex, and their internal structure remains poorly understood. We used quasi‐3D electrical resistivity tomography (ERT) measurements, supported by UAV‐LiDAR topography, frost probing ...
Cas Renette, Mirko Pavoni, Mauricio Fuentes, Erik Sturkell, Mats Olvmo, Heather Reese   +5 more
wiley   +1 more source

A revised inventory of Antarctic subglacial lakes [PDF]

, 2005
The locations and details of 145 Antarctic subglacial lakes are presented. The inventory is based on a former catalogue of lake-type features, which has been subsequently reanalysed, and on the results from three additional datasets.
Tobacco, Ignazio, Blankenship, Donald D., S. Popov, Carter, Sasha, Siegert, Martin, M. J. Siegert, Popov, Sergey, S. Carter, D. D. Blankenship, I. Tabacco   +9 more
core   +1 more source

Progress of Japanese glaciological research in the Antarctic.

Journal of the Japanese Society of Snow and Ice, 1981
Japanese Antarctic Research Expedition (JARE) established Syowa Station on East Ongul Island in Lutzow-Holm Bay in January 1957 and an inland station Mizuho in July 1970. These two stations have been the bases for glaciological work of JARE in conjunction with the research at home laboratories.
openaire   +3 more sources

Reflections on the anomalous ANITA events: the Antarctic subsurface as a possible explanation

Annals of Glaciology, 2020
The Antarctic Impulsive Transient Antenna (ANITA) balloon experiment was designed to detect radio signals initiated by high-energy neutrinos and cosmic ray (CR) air showers.
Ian M. Shoemaker, Alexander Kusenko, Peter Kuipers Munneke, Andrew Romero-Wolf, Dustin M. Schroeder, Martin J. Siegert   +5 more
doaj   +1 more source

Glaciological and Chemical Characteristics of an Antarctic Inland Plateau (Abstract) [PDF]

Annals of Glaciology, 1988
A glaciological research project in east Queen Maud Land, Antarctica, has been carried out by the Japanese Antarctic Research Expeditions between 1982 and 1986 (JARE-23 – JARE-27). In this paper, we deal with the area traversed by JARE-25 and JARE-26, a representative inland plateau in Antarctica. In 1984, a team from JARE-25 extended
Y. Ageta, K. Kamiyama, F. Okuhira, Y. Fujii, O. Watanabe   +4 more
openaire   +1 more source

Depositional and Hydrological Relationships Between Buried Dead Ice and the Active Layer in the McMurdo Dry Valleys, Antarctica: A Study of Sediment Geochemistry and Cation Concentrations

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The McMurdo Dry Valleys, the largest ice‐free region in Antarctica, are home to a cold‐desert hydrologic system of glaciers, snowbanks, streams, and lakes. Freshwater is also stored as dead glacial ice, which is poorly constrained in terms of ion concentrations and interactions with both in situ and overlying sediments.
Matthew C. Witscheber, Kate M. Swanger
wiley   +1 more source

Palaeoenvironmental and climatic changes from the lateglacial of the Saalian to the Late Weichselian in central Poland: a multiproxy study from Józefów

Boreas, EarlyView.
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka, Jacek Forysiak, Ryszard Borówka, Andreas Börner, Łukasz Bujak, Leszek Marks, Radosław Mieszkowski, Piotr Moska, Daniel Okupny, Małgorzata Pisarska‐Jamroży, Renata Stachowicz‐Rybka, Krzysztof Stachowicz   +11 more
wiley   +1 more source

Diurnal lake-level cycles on ice shelves driven by meltwater input and ocean tidal tilt

Journal of Glaciology, 2020
Diurnal depth cycles of decimeter scale are observed in a supraglacial lake on the McMurdo Ice Shelf, Antarctica. We evaluate two possible causes: (1) tidal tilt of the ice shelf in response to the underlying ocean tide, and (2) meltwater input variation.
Douglas R. MacAyeal, Ian C. Willis, Alison F. Banwell, Grant J. Macdonald, Becky Goodsell   +4 more
doaj   +1 more source