Results 31 to 40 of about 583 (230)

Dynamics of a small surge-type glacier using one-dimensional geophysical inversion [PDF]

Journal of Glaciology, 2009
AbstractWe investigate the dynamics of a small surge-type valley glacier as part of a study to characterize glacier response to climate in the Donjek Range, southwest Yukon, Canada. Pole displacements were measured using kinematic GPS techniques during three consecutive summer field seasons.
Laetitia De Paoli, Gwenn E. Flowers
openaire   +1 more source

Increasing contribution of grain boundary compliance to polycrystalline ice elasticity as temperature increases

Journal of Glaciology, 2018
Measured elastic stiffnesses of ice polycrystals decrease with increasing temperature due to a decrease in grain boundary stiffness with increasing temperature.
COLIN M. SAYERS
doaj   +1 more source

Seismic observations of crevasse growth following rain-induced glacier acceleration, Haupapa/Tasman Glacier, New Zealand

Annals of Glaciology, 2019
Changing rates of water input can affect both the flow of glaciers and ice sheets and their propensity to crevasse. Here we examine geodetic and seismic observations during two substantial (10–18-times background velocity) rain-induced glacier ...
Samuel Taylor-Offord, Huw Horgan, John Townend, J. Paul Winberry   +3 more
doaj   +1 more source

The precision of radar-derived subglacial bed topography: a case study from Pine Island Glacier, Antarctica

Annals of Glaciology, 2020
Recent advances in the measurement of bedforms beneath active ice streams have been made using ground-based grid profiling using impulse radar systems operating with centre frequencies in the 3–5 MHz range.
Edward C. King
doaj   +1 more source

Multi‐Method Geophysical Surveys Between and Around the Kerlescan and the Manio Megalithic Alignments in Carnac (Morbihan, France)

Archaeological Prospection, EarlyView.
ABSTRACT The Carnac alignments in Morbihan (France) are among the most famous Neolithic sites of the world. Paradoxically, they have benefited little from a thorough renewal of archaeological data over the past century. There are many reasons for this, but it is mainly because the site has been regarded more as a monument to visit and protect than as ...
Guillaume Bruniaux, Vivien Mathé, Olivier Agogué, Sylvia Lopez, Philippe Paillou, Reena Perschke, Vincent Ard   +6 more
wiley   +1 more source

QFuego-Patagonia: A comprehensive glacier-related dataset for Patagonia and Tierra del Fuego, South America

Journal of Glaciology
Patagonia and Tierra del Fuego (Austral Andes) are the most glacierised regions in the Southern Hemisphere, where glaciers have experienced significant mass changes in recent decades.
David Farías-Barahona, Matthias Braun, Marius Schaefer, Shin Sugiyama, Andrés Rivera, Gino Casassa, Valentina Peña-Santibañez, Johannes Fürst, Franziska Temme, Ilaria Tabone, Masamu Aniya, Jan Erik Arndt, Rodrigo Aguayo, Sebastien Bertrand, Norbert Blindow, Francisca Bown, Claudio Bravo, Tomas Carrasco-Escaff, Camila Cáceres, Bethan J. Davies, Inés Dussaillant, Daniel Falaschi, Alfonso Fernández, Gisella Gacitúa, Ricardo Giesecke, Neil F. Glasser, Shuntaro Hata, Jorge Huenante, Inigo Irarrazaval, Pablo Iribarren-Anacona, Eñaut Izagirre, Lukas Langhamer, Thomas Loriaux, Pamela Maldonado, Philipp Malz, Luciano Mendoza, Morgan McDonnell, Wolfgang H. Meier, Romain Millan, Masahiro Minowa, Michał Pętlicki, Andreas Richter, Lucas Ruiz, Tobias Sauter, Ryan Wilson   +44 more
doaj   +1 more source

Detecting and characterising an englacial conduit network within a temperate Swiss glacier using active seismic, ground penetrating radar and borehole analysis

Annals of Glaciology, 2019
Englacial hydrology plays an important role in routing surface water to the glacier's bed and it consequently affects the glacier's dynamics. However, it is often difficult to observe englacial conduit conditions on temperate glaciers because of their ...
Gregory Church, Andreas Bauder, Melchior Grab, Lasse Rabenstein, Satyan Singh, Hansruedi Maurer   +5 more
doaj   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

Geological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao, Wen Chen, Jingbo Sun, Ze Shen, Jie Zhang   +4 more
wiley   +1 more source

Joint geodetic and seismic analysis of surface crevassing near a seasonal glacier-dammed lake at Gornergletscher, Switzerland

Annals of Glaciology, 2019
Seasonal lake Gornersee forms at the confluence of Gornergletscher and Grenzgletscher, Switzerland, and experiences outburst floods annually in midsummer.
Louis Garcia, Karen Luttrell, Debi Kilb, Fabian Walter   +3 more
doaj   +1 more source

Holocene sea‐level and environmental changes on the Isle of Mull, Scotland

Journal of Quaternary Science, EarlyView.
ABSTRACT Sea‐level and coastal changes are reconstructed on the Isle of Mull, western Scotland, from 10 988 to 10 507 cal BP to the present. This research has produced the first SLIP for the Isle of Mull. A multiproxy approach including pollen, spore, foraminifera and diatom analyses reveals palaeoenvironmental changes from two coastal sites.
Katherine A. Selby, Jane Wheeler, William E. N. Austin, Heather Austin, Tom Hill, Sarah L. Bradley, Sally Derrett   +6 more
wiley   +1 more source