Results 61 to 70 of about 27,656 (314)

Reconstructing ice-sheet accumulation rates at ridge B, East Antarctica [PDF]

, 2004
Understanding how ice sheets responded to past climate change is fundamental to forecasting how they will respond in the future. Numerical models calculating the evolution of ice sheets depend upon accumulation data, which are principally available from ...
Antony J. Payne, Gwendolyn J.-M. C. Leysinger Vieli, Martin J. Siegert, Paterson   +3 more
core   +1 more source

Mid‐Holocene drying of K'gari lakes (subtropical eastern Australia) necessitates re‐evaluation of the El Niño–Southern Oscillation climate links and future drying risk

Journal of Quaternary Science, EarlyView.
ABSTRACT The Holocene history of Australia's climate is surprisingly poorly understood. This is, in part, because of the relatively weak forcing of Holocene climate versus that of the late Pleistocene. However, it is commonly suggested that eastern Australia dried during the mid‐ to late‐Holocene and that this was in response to increased activity in ...
John Tibby, Haidee Cadd, Matthew Harris, Jonathan C. Marshall, Jonathan Tyler, Cameron Barr, Francesca McInerney, Patrick Moss, Claire Murphy, Patricia S. Gadd, Geraldine E. Jacobsen, Mathew Raven, Glenn McGregor, Cameron Schulz, Harald Hofmann   +14 more
wiley   +1 more source

Evolving ice fraction in the shallow firn layer of Devon Ice Cap, Canada, between 2012 and 2022

Journal of Glaciology
Firn can store glacial meltwater and delay contribution to sea level rise, but ice layers and ice slabs within the shallow firn layer can impede the downward percolation of melt. Here we report firn conditions along a transect on southwest Devon Ice Cap (
Danielle Hallé, Wesley Van Wychen, David Burgess, Bradley Danielson, Richard Kelly, Madeline Myers, Brice Noël, Peter Bezeau, Luke Copland   +8 more
doaj   +1 more source

Alpine Glaciology: An Historical Collaboration between Volunteers and Scientists and the Challenge Presented by an Integrated Approach

ISPRS International Journal of Geo-Information, 2013
European Alpine glaciology has a long tradition of studies and activities, in which researchers have often relied on the field work of some specialized volunteer operators.
Paola Carrara, Francesco Zucca, Gloria Bordogna, Roberto Seppi, Monica Pepe, Laura Criscuolo   +5 more
doaj   +1 more source

Last Glacial Maximum and deglacial branched GDGT‐based palaeotemperature reconstruction from a subtropical Australian wetland

Journal of Quaternary Science, EarlyView.
ABSTRACT Future projections of climate change in the subtropics suggest warming and drying, while evidence from warm periods in the past shows increases in subtropical temperatures and precipitation. Eastern Australia is subject to interannual hydroclimate drivers and has experienced extreme flooding and droughts in recent years.
Joan Macalalad, Kevin Welsh, Harald Hofmann, Geraldine Jacobsen, Zhenyu Ni, Enlou Zhang   +5 more
wiley   +1 more source

Interaction of two tributary glacier branches and implications for surge behavior [PDF]

, 2018
Thesis (M.S.) University of Alaska Fairbanks, 2018A glacier surge is a dynamic phenomenon where the glacier after a long period of quiescence, increases its velocities by up to two orders of magnitude.
Knowles, Christopher P.
core  

Climate and catchment influence the postglacial succession of three lakes in south‐central Baffin Island (Nunavut), Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Understanding postglacial ontogeny in Arctic lakes helps contextualize modern‐day climatic change. We used sediment cores to characterize ecological succession in three south‐central Baffin Island lakes from deglaciation (c. 7–8k cal a BP) to present.
Isaac Armstrong, Andrew Scott Medeiros, Jennifer Eamer, Claudia Zimmermann, Biljana Narancic, Reinhard Pienitz   +5 more
wiley   +1 more source

Contributions to the Glaciology of the Antarctic [PDF]

Journal of Glaciology, 1956
AbstractDuring a winter in Terre Adélie in 1951 (Antarctica) certain glaciological studies were made. These were strongly hampered by the extraordinary strength and persistence of the blizzards from the ice cap. Near the coast the wind dominates the distribution of snow completely. The firn limit on the open ice cap is at a height of 450 m. (1500 ft.).
openaire   +2 more sources

Stad Slide: Preconditioning and failure of one of the world's largest megaslides

Journal of Quaternary Science, EarlyView.
ABSTRACT Submarine landslides can generate tsunamis and pose risks to underwater infrastructure, but a lack of direct observations of such slides hinders our understanding of their development and hazard potential. Studying the morphology of past slides can offer insights into their preconditioning and failure.
B. K. Tiller, C. L. Batchelor, B. Bellwald, B. Manton, K. Winter, N. Ross, S. Planke   +6 more
wiley   +1 more source

Control of Ocean Temperature on Jakobshavn Isbræ's Present and Future Mass Loss

Geophysical Research Letters, 2018
Large uncertainties in model parameterizations and input data sets make projections of future sea level rise contributions of outlet glaciers challenging.
Johannes H. Bondzio, Mathieu Morlighem, Hélène Seroussi, Michael H. Wood, Jérémie Mouginot   +4 more
doaj   +1 more source