Results 1 to 10 of about 9,087 (156)

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

Deriving Antarctic Sea‐Ice Thickness From Satellite Altimetry and Estimating Consistency for NASA's ICESat/ICESat‐2 Missions

Geophysical Research Letters, 2021
With the launch of the Ice, Cloud and Land Elevation Satellite‐2 (ICESat‐2), densely measuring the Antarctic ocean all year long, monthly sea ice thickness changes can be inspected.
Yue Xu, Huan Li, Baojian Liu, Hongjie Xie, Burcu Ozsoy‐Cicek   +4 more
doaj   +2 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

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

Thickness distribution of Antarctic sea ice [PDF]

Journal of Geophysical Research, 2008
Ship‐based observations are used to describe regional and seasonal changes in the thickness distribution and characteristics of sea ice and snow cover thickness around Antarctica. The data set comprises 23,373 observations collected over more than 2 decades of activity and has been compiled as part of the Scientific Committee on Antarctic Research ...
Worby, A. P. (Anthony P.), Geiger, Cathleen A., Paget, M. J., Van Woert, Michael L., Ackley, Stephen F., DeLiberty, Tracy L.   +5 more
exaly   +3 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

Antarctic Sea Ice Area in CMIP6 [PDF]

Geophysical Research Letters, 2020
AbstractFully coupled climate models have long shown a wide range of Antarctic sea ice states and evolution over the satellite era. Here, we present a high‐level evaluation of Antarctic sea ice in 40 models from the most recent phase of the Coupled Model Intercomparison Project (CMIP6). Many models capture key characteristics of the mean seasonal cycle
Lettie A. Roach, Jakob Dörr, Caroline R. Holmes, François Massonnet, Edward W. Blockley, Dirk Notz, Thomas Rackow, Marilyn N. Raphael, Siobhan P. O'Farrell, David A. Bailey, Cecilia M. Bitz   +10 more
openaire   +5 more sources

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