Results 121 to 130 of about 101,389 (308)

A protocol for calculating basal melt rates in the ISMIP6 Antarctic ice sheet projections

The Cryosphere, 2019
. Climate model projections have previously been used to compute ice shelf basal melt rates in ice sheet models, but the strategies employed – e.g., ocean input, parameterization, calibration technique, and corrections – have varied widely and are often ...
N. Jourdain, X. Asay-Davis, T. Hattermann, F. Straneo, H. Seroussi, C. Little, S. Nowicki   +6 more
semanticscholar   +1 more source

Long‐Term Increase in Antarctic Ice Sheet Vulnerability Driven by Bed Topography Evolution

Geophysical Research Letters, 2020
Ice sheet behavior is strongly influenced by the bed topography. However, the effect of the progressive temporal evolution of Antarctica's subglacial landscape on the sensitivity of the Antarctic Ice Sheet (AIS) to climatic and oceanic change has yet to ...
G. Paxman, E. Gasson, S. Jamieson, M. J. Bentley, F. Ferraccioli   +4 more
semanticscholar   +1 more source

Quantification of the Greenland ice sheet contribution to Last Interglacial sea level rise [PDF]

, 2012
During the Last Interglacial period (~ 130–115 thousand years ago) the Arctic climate was warmer than today, and global mean sea level was probably more than 6.6 m higher.
Annan, J D, Hargreaves, J C, Lunt, D J, Stone, E J   +3 more
core   +2 more sources

Small‐Scale, High‐Frequency Ice, and Ocean Processes in the Amundsen Sea Embayment, West Antarctica

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.
Abstract In proximity of the Antarctic ice sheet, oceanic motions with different spatial structures contribute to the transport of warm water onto the continental shelf, fueling submarine ice‐shelf melting. Emerging evidence suggests that km‐sized ocean submesoscale fronts and eddies significantly impact ice‐ocean interactions on timescale of a few ...
M. Poinelli, L. Siegelman, Y. Nakayama, E. Rignot, H. Seroussi, I. Fenty, E. Larour   +6 more
wiley   +1 more source

Sovereign Debt in a Warming World: Are Credit Ratings Responding to Climate Risks?

Kyklos, Volume 78, Issue 4, Page 1479-1495, November 2025.
ABSTRACT Investors and policymakers increasingly worry that climate change threatens sovereign debt. While recent studies find a negative effect, they typically estimate models assuming a time‐invariant impact and rely on climate variables endogenous to economic and policy conditions.
Thomas Barnebeck Andersen
wiley   +1 more source

Formation of the West Antarctic Ice Sheet [PDF]

Annals of Glaciology, 1988
A numerical ice-shelf model is employed to observe the inception of the West Antarctic ice sheet (WAIS) from a thin (20 m thick) floating ice cover under the following conditions: (i) a lower sea-level than at present, due to ice-sheet formation in the Northern Hemisphere, (ii) surface and basal temperature and accumulation rates approximately equal to
openaire   +2 more sources

Spatiotemporal Variations in Surface Air 7Be Concentrations Over the Antarctic Regions of the Indian Sector

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 20, 28 October 2025.
Abstract This study examined spatiotemporal variations in Beryllium‐7 (7Be) concentrations measured in surface air in high‐latitude regions of the Indian sector of the Southern Ocean, including two Japanese coastal stations. The sites included Syowa Station (69°00′S, 39°35′E) and site S17 (69°02′S, 40°05′E) on the coastal Antarctic ice sheet ...
Naohiko Hirasawa, Taku Nakamura, Miyoko Miwa, Tetsuro Ojio, Kyohei Yamada, Shigeki Tasaka   +5 more
wiley   +1 more source

Contrasting Responses of Monsoon Rainfall and Speleothem Oxygen Isotope Between Northeast Asia and North China During the Early‐Mid Holocene

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract A critical gap in East Asian summer monsoon research is the lack of speleothem records from its northeasternmost fringe, hindering tests of orbital‐scale monsoon variability at higher latitudes. Our new records from the Russian Far East, spanning 9–5 ka BP, fill this spatial gap and reveal a synchronous δ18O negative excursion and intensified ...
Kexin Wang, Jingyao Zhao, Yanjun Cai, Haiwei Zhang, Hanying Li, Xu Zhang, Xiaojian Zhang, Jian Wang, Sergey A. Gorbarenko, Yuriy I. Bersenev, Yuriy P. Vasilenko, Hai Cheng   +11 more
wiley   +1 more source

Uncertainties in the modelled CO2 threshold for Antarctic glaciation [PDF]

, 2014
A frequently cited atmospheric CO2 threshold for the onset of Antarctic glaciation of ∼780 ppmv is based on the study of DeConto and Pollard (2003) using an ice sheet model and the GENESIS climate model.
Deconto, R., Gasson, E., Goldner, A., Heinemann, M., Huber, M., Legrande, A.N., Lunt, D.J., Pollard, D., Sagoo, N., Siddall, M., Valdes, P.J., Winguth, A.   +11 more
core   +6 more sources

Measurement of Antarctic ice sheet movements in vicinity of Syowa Station through one year of GPS observations

Antarctic Record, 2010
We conducted GPS observations on the Antarctic ice sheet in the vicinity of Syowa Station, during wintering of the 48th Japanese Antarctic Research Expedition (JARE-48). Continuous GPS data for about one year was obtained for the first time.
Naoki Arai, Minoru Ito, Koichiro Doi, Yuichi Aoyama   +3 more
doaj   +1 more source