Results 11 to 20 of about 91,538 (269)

Drivers of Antarctic sea ice advance. [PDF]

Nat Commun, 2023
Abstract Antarctic sea ice is mostly seasonal. While changes in sea ice seasonality have been observed in recent decades, the lack of process understanding remains a key challenge to interpret these changes. To address this knowledge gap, we investigate the processes driving the ice season onset, known as sea ice advance, using remote
Himmich K, Vancoppenolle M, Madec G, Sallée JB, Holland PR, Lebrun M.   +5 more
europepmc   +7 more sources

Virus-Host Interactions and Genetic Diversity of Antarctic Sea Ice Bacteriophages [PDF]

mBio, 2022
Although we know the generally appreciated significant roles of microbes in sea ice and polar waters, detailed studies of virus-host systems from such environments have been so far limited by only a few available isolates.
Tatiana A. Demina, Anne-Mari Luhtanen, Simon Roux, Hanna M. Oksanen   +3 more
doaj   +2 more sources

The key role of the Southern Annular Mode during the sea-ice maximum for Antarctic sea ice and its recent loss [PDF]

Communications Earth & Environment
Antarctic sea ice exhibits considerable interannual variability and has experienced unprecedented decline over the past decade. Here we provide observational insights into the role of the Southern Annular Mode in driving such variations in Antarctic sea ...
Chloe L. Boehm, David W. J. Thompson, Edward Blanchard-Wrigglesworth   +2 more
doaj   +2 more sources

Sea Ice–Ocean Feedbacks in the Antarctic Shelf Seas [PDF]

Journal of Physical Oceanography, 2019
AbstractObserved changes in Antarctic sea ice are poorly understood, in part due to the complexity of its interactions with the atmosphere and ocean. A highly simplified, coupled sea ice–ocean mixed layer model has been developed to investigate the importance of sea ice–ocean feedbacks on the evolution of sea ice and the ocean mixed layer in two ...
Frew, R.C., Feltham, D.L., Holland, P.R., Petty, A.A.   +3 more
openaire   +6 more sources

Improved simulation of Antarctic sea ice due to the radiative effects of falling snow [PDF]

Environmental Research Letters, 2017
Southern Ocean sea-ice cover exerts critical control on local albedo and Antarctic precipitation, but simulated Antarctic sea-ice concentration commonly disagrees with observations.
J-L F Li, Mark Richardson, Yulan Hong, Wei-Liang Lee, Yi-Hui Wang, Jia-Yuh Yu, Eric Fetzer, Graeme Stephens, Yinghui Liu   +8 more
doaj   +2 more sources

Snow on Antarctic sea ice

Reviews of Geophysics, 2001
Snow on Antarctic sea ice plays a complex and highly variable role in air‐sea‐ice interaction processes and the Earth's climate system. Using data collected mostly during the past 10 years, this paper reviews the following topics: snow thickness and snow type and their geographical and seasonal variations; snow grain size, density, and salinity ...
Massom, R. A., Eicken, H., Haas, Christian, Jeffries, M. O., Drinkwater, M. R., Sturm, M., Worby, A. P., Wu, X., Lytle, V. I., Ushio, S., Morris, K., Reid, P. A., Warren, S., Allison, I.   +13 more
openaire   +4 more sources

Reconstruction of Antarctic sea ice thickness from sparse satellite laser altimetry data via deep learning [PDF]

Scientific Data
The persistent lack of spatially complete Antarctic sea ice thickness (SIT) data at sub-monthly resolution has fundamentally constrained the quantitative understanding of large-scale sea ice mass balance processes.
Ziqi Ma, Qinghua Yang, Yue Xu, Wen Shi, Xiaoran Dong, Qian Shi, Hao Luo, Jiping Liu, Petteri Uotila, Yafei Nie   +9 more
doaj   +2 more sources

An evaluation of Antarctic sea-ice thickness from the Global Ice-Ocean Modeling and Assimilation System based on in situ and satellite observations [PDF]

The Cryosphere, 2022
Antarctic sea ice is an important component of the Earth system. However, its role in the Earth system is still unclear due to limited Antarctic sea-ice thickness (SIT) data. A reliable sea-ice reanalysis can be useful to study Antarctic SIT and its role
S. Liao, H. Luo, J. Wang, Q. Shi, J. Zhang, Q. Yang   +5 more
doaj   +1 more source

Estimating summer sea ice extent in the Weddell Sea during the early 19th century [PDF]

Climate of the Past, 2023
Over the past 3 decades, discordant trends in sea ice extent have been observed between the Arctic and Antarctic regions. Arctic sea ice extent has been characterised by a rapid decline, whereas Antarctic sea ice extent, while highly variable ...
E. Love, G. R. Bigg
doaj   +1 more source

Summertime linkage between Antarctic sea-ice extent and ice-shelf basal melting through Antarctic coastal water masses’ variability: a circumpolar Southern Ocean model study

Environmental Research Letters, 2021
Recent observations indicate that two cryospheric components, namely the Antarctic sea ice and ice shelf over the Southern Ocean, have been changing over the decades. Here we analyze results from an ocean–sea ice–ice shelf model to examine variability in
Kazuya Kusahara
doaj   +1 more source