Results 61 to 70 of about 190,113 (342)

Sea ice trends in climate models only accurate in runs with biased global warming

, 2017
Observations indicate that the Arctic sea ice cover is rapidly retreating while the Antarctic sea ice cover is steadily expanding. State-of-the-art climate models, by contrast, typically simulate a moderate decrease in both the Arctic and Antarctic sea ...
Eisenman, Ian, Rosenblum, Erica
core   +1 more source

PLISMIP-ANT, an ice-sheet model intercomparison project [PDF]

, 2015
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-Ouchi, A., Bernales, J., Boer, B. de, Dolan, A. M., Gasson, E., Goelzer, H., Golledge, N. R., Huybrechts, P., Lohmann, G., Rogozhina, I., Saito, F., Sutter, J., Wal, R. S. W. van de   +12 more
core   +1 more source

2023's Antarctic sea ice extent is the lowest on record

Weather
Antarctic sea ice is a vitally important part of the regional and global climate. In 2023, sea ice extent fell to record lows, reaching unprecedented values for both the summer minimum, winter maximum and intervening freeze‐up period.
E. Gilbert, Caroline Holmes
semanticscholar   +1 more source

Thermal Responses to Antarctic Ice Shelf Melt in an Eddy-Rich Global Ocean–Sea Ice Model

Journal of Climate, 2020
The response of near-Antarctic waters to freshening by increased glacial melt is investigated using a high-resolution (0.1°) global ocean–sea ice model with realistic Antarctic water-mass properties.
Ruth Moorman, A. Morrison, A. Hogg
semanticscholar   +1 more source

Antarctic Sea Ice Biota [PDF]

American Zoologist, 1991
The sea ice surrounding Antarctica provides an extensive habitat for organisms ranging in size from bacteria to marine birds and mammals. Historically, most of the ecological work on the ice biota has focused in the nearshore land-fast ice. Only in the last decade have there been comparable studies in the deep-water pack ice regions. These studies have
openaire   +2 more sources

Positive Trend in the Antarctic Sea Ice Cover and Associated Changes in Surface Temperature. [PDF]

J Clim, 2017
The Antarctic sea ice extent has been slowly increasing contrary to expected trends due to global warming and results from coupled climate models. After a record high extent in 2012 the extent was even higher in 2014 when the magnitude exceeded 20×106 ...
Comiso JC, Gersten RA, Stock LV, Turner J, Perez GJ, Cho K.   +5 more
europepmc   +2 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

Observational evidence for a regime shift in summer Antarctic sea ice

Journal of Climate
In recent years, the Southern Ocean has experienced extremely low sea ice cover in multiple summers. These low events were preceded by a multidecadal positive trend that culminated in record high ice coverage in 2014. This abrupt transition has led some
William R. Hobbs, Paul Spence, Amelie Meyer, S. Schroeter, Alexander D. Fraser, Phil Reid, Tian Tian, Zhaohui Wang, Guillaume Liniger, E. Doddridge, Philip W. Boyd   +10 more
semanticscholar   +1 more source

Impact of Winds and Southern Ocean SSTs on Antarctic Sea Ice Trends and Variability

Journal of Climate, 2020
Antarctic sea ice extent (SIE) has slightly increased over the satellite observational period (1979 to the present) despite global warming. Several mechanisms have been invoked to explain this trend, such as changes in winds, precipitation, or ocean ...
E. Blanchard‐Wrigglesworth, L. Roach, A. Donohoe, Q. Ding   +3 more
semanticscholar   +1 more source

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