Results 61 to 70 of about 106,138 (355)

Could the Last Interglacial Constrain Projections of Future Antarctic Ice Mass Loss and Sea‐Level Rise? [PDF]

, 2020
Previous studies have interpreted Last Interglacial (LIG; ∼129–116 ka) sea-level estimates in multiple different ways to calibrate projections of future Antarctic ice-sheet (AIS) mass loss and associated sea-level rise. This study systematically explores
Ashe, Erica L., DeConto, Robert M., Gilford, Daniel M., Kopp, Robert E., Pollard, David, Rovere, Alessio   +5 more
core   +4 more sources

An ice core indicator of Antarctic sea ice production? [PDF]

Geophysical Research Letters, 2003
The sea ice surface, not open water, is the dominant source of sea salt to aerosol and ice cores in coastal Antarctica. Here, we show that it may also form the dominant source for central Antarctica. We can then explain higher concentrations in the winter and last glacial maximum (LGM) as being due to increased sea ice production.
Wolff, Eric W., Rankin, Andrew M., Röthlisberger, Regine   +2 more
openaire   +3 more sources

An Overview of Antarctic Sea Ice in the Community Earth System Model Version 2, Part I: Analysis of the Seasonal Cycle in the Context of Sea Ice Thermodynamics and Coupled Atmosphere‐Ocean‐Ice Processes

Journal of Advances in Modeling Earth Systems, 2021
We assess Antarctic sea ice climatology and variability in version 2 of the Community Earth System Model (CESM2) and compare it to that in the older CESM1 and (where appropriate) real‐world observations.
Hansi K. A. Singh, Laura Landrum, Marika M. Holland, David A. Bailey, Alice K. DuVivier   +4 more
doaj   +1 more source

Impacts of the Cryosphere and Atmosphere on Observed Microseisms Generated in the Southern Ocean [PDF]

, 2021
The Southern Ocean (in the region 60-180$^\circ$E) south of the Indian Ocean, Australia, and the West Pacific is noted for the frequent occurrence and severity of its storms. These storms give rise to high-amplitude secondary microseisms from sources, including the deep ocean regions, and primary microseisms where the swells impinge on submarine ...
arxiv   +1 more source

Glacial/interglacial changes in mineral dust and sea-salt records in polar ice cores: sources, transport, and deposition [PDF]

, 2007
Sea salt and mineral dust records as represented by Na+ and Ca2+ concentrations, respectively, in Greenland and Antarctic ice cores show pronounced glacial/interglacial variations. For the Last Glacial Maximum (LGM) mineral dust (sea salt) concentrations
Fischer, Hubertus, Ruth, Urs, Röthlisberger, Regine, Siggaard-Andersen, Marie-Louise, Wolff, Eric   +4 more
core   +1 more source

Variety and Distribution of Diatom-Based Sea Ice Proxies in Antarctic Marine Sediments of the Past 2000 Years

Geosciences, 2022
Antarctic sea ice is an essential component of the global climate system. Reconstructions of Antarctic sea ice from marine sediment cores are a vital resource to improve the representation of Antarctic sea ice in climate models and to better understand ...
Claire S. Allen, Zelna C. Weich
doaj   +1 more source

Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection [PDF]

Environmetrics. 2019;e2579, 2018
Surface mass balance (SMB) is an important factor in the estimation of sea level change, and data are collected to estimate models for prediction of SMB over the Antarctic ice sheets. Using a quality-controlled aggregate dataset of SMB field measurements with significantly more observations than previous analyses, a fully Bayesian nearest-neighbor ...
arxiv   +1 more source

Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons [PDF]

, 2023
The structure of the Antarctic Slope Current at the continental shelf is crucial in governing the poleward transport of warm water. Canyons on the continental slope may provide a pathway for warm water to cross the slope current and intrude onto the continental shelf underneath ice shelves, which can increase rates of ice shelf melting, leading to ...
arxiv   +1 more source

Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project [PDF]

, 2014
In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance.
ABE, AYAKO, Bernales, J., Bernales, J., de Boer, Bas, de, Boer, Bas, Dolan, A., Dolan, A., Gasson, E., Gasson, E., Goelzer, H., Goelzer, H., Golledge, N., Golledge, N., Huybrechts, P., Huybrechts, P., Lohmann, G., Lohmann, G., Rogozhina, I., Rogozhina, I., SAITO, FUYUKI, Sutter, J., Sutter, J., van de Wal., R., van, de, Wal., R., 阿部, 彩子, 齋藤, 冬樹   +25 more
core   +6 more sources

Impact of West Antarctic ice shelf melting on Southern Ocean hydrography [PDF]

The Cryosphere, 2020
Previous studies show accelerations of West Antarctic glaciers, implying that basal melt rates of these glaciers were previously small and increased in the middle of the 20th century. This enhanced melting is a likely source of the observed Ross Sea (RS)
Y. Nakayama, Y. Nakayama, R. Timmermann, H. H. Hellmer   +3 more
doaj   +1 more source