Results 51 to 60 of about 123,794 (282)

Multi-decadal trends in Antarctic sea-ice extent driven by ENSO–SAM over the last 2,000 years

Nature Geoscience, 2021
Antarctic sea ice has paradoxically become more extensive over the past four decades despite a warming climate. The regional expression of this trend has been linked to changes in vertical redistribution of ocean heat and large-scale wind-field shifts ...
X. Crosta, J. Étourneau, L. Orme, Q. Dalaiden, P. Campagne, D. Swingedouw, H. Goosse, G. Massé, A. Miettinen, R. McKay, R. Dunbar, C. Escutia, M. Ikehara   +12 more
semanticscholar   +1 more source

An Unprecedented Sea Ice Retreat in the Weddell Sea Driving an Overall Decrease of the Antarctic Sea‐Ice Extent Over the 20th Century

Geophysical Research Letters, 2023
Sea‐ice extent is predicted to decrease in a warming climate. However, despite global warming over the past century, total Antarctic sea ice remained relatively stable from 1979 until 2015, before strongly melting.
Quentin Dalaiden, Jeanne Rezsöhazy, Hugues Goosse, Elizabeth R. Thomas, Diana O. Vladimirova, Dieter Tetzner   +5 more
doaj   +1 more source

Reconstructing Antarctic winter sea-ice extent during Marine Isotope Stage 5e [PDF]

Climate of the Past, 2022
Environmental conditions during Marine Isotope Stage (MIS) 5e (130–116 ka) represent an important “process analogue” for understanding the climatic responses to present and future anthropogenic warming. The response of Antarctic sea ice to global warming
M. Chadwick, M. Chadwick, C. S. Allen, L. C. Sime, X. Crosta, C.-D. Hillenbrand   +5 more
doaj   +1 more source

Observations on the Antarctic Sea-Ice [PDF]

The Geographical Journal, 1905
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openaire   +1 more source

Sources of low-frequency variability in observed Antarctic sea ice [PDF]

The Cryosphere
Antarctic sea ice has exhibited significant variability over the satellite record, including a period of prolonged and gradual expansion, as well as a period of sudden decline.
D. B. Bonan, J. Dörr, J. Dörr, R. C. J. Wills, A. F. Thompson, M. Årthun, M. Årthun   +6 more
doaj   +1 more source

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
W. Hobbs, P. Spence, Amelie Meyer, S. Schroeter, Alexander D Fraser, P. Reid, Tian Tian, Zhaohui Wang, Guillaume Liniger, E. Doddridge, Philip W. Boyd   +10 more
semanticscholar   +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, C. Holmes
semanticscholar   +1 more source

Synoptic mode of Antarctic summer sea ice superimposed on interannual and decadal variability

Advances in Climate Change Research, 2021
In contrast to decreased Arctic sea ice extent, Antarctic sea ice extent shows a somewhat increased trend. There is a large interannual variability of Antarctic sea ice, especially in the Pacific sector of the Southern Ocean.
Le-Jiang Yu, Shi-Yuan Zhong, Cui-Juan Sui, Zhao-Ru Zhang, Bo Sun   +4 more
doaj   +1 more source

Ocean‐Sea Ice Processes and Their Role in Multi‐Month Predictability of Antarctic Sea Ice

Geophysical Research Letters, 2021
Abstract Antarctic sea ice is a critical component of the climate system and a vital habitat for Southern Ocean ecosystems. Understanding the underlying physical processes and improving Antarctic sea ice prediction is of broad interest.
Stephy Ann Libera, William R. Hobbs, Andreas Klocker, Amelie Meyer, Richard J. Matear   +4 more
openaire   +3 more sources

Proteorhodopsin-Bearing Bacteria in Antarctic Sea Ice [PDF]

Applied and Environmental Microbiology, 2010
ABSTRACT Proteorhodopsins (PRs) are widespread bacterial integral membrane proteins that function as light-driven proton pumps. Antarctic sea ice supports a complex community of autotrophic algae, heterotrophic bacteria, viruses, and protists that are an important food source for higher trophic levels in ice-covered regions of ...
Eileen Y, Koh, Nof, Atamna-Ismaeel, Andrew, Martin, Rebecca O M, Cowie, Oded, Beja, Simon K, Davy, Elizabeth W, Maas, Ken G, Ryan   +7 more
openaire   +2 more sources