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2023's Antarctic sea ice extent is the lowest on record
WeatherAntarctic 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
Modeled Trends in Antarctic Sea Ice Thickness [PDF]
Journal of Climate, 2014 Abstract Unlike the rapid sea ice losses reported in the Arctic, satellite observations show an overall increase in Antarctic sea ice concentration over recent decades. However, observations of decadal trends in Antarctic ice thickness, and hence ice volume, do not currently exist.
Holland, Paul R. +5 more
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Observational evidence for a regime shift in summer Antarctic sea ice
Journal of ClimateIn 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 +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 +3 more
semanticscholar +1 more source
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. +2 more
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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 +4 more
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The Antarctic sea ice cover from ICESat-2 and CryoSat-2: freeboard, snow depth, and ice thickness
The Cryosphere, 2020 . We offer a view of the Antarctic sea ice cover from lidar (ICESat-2) and radar (CryoSat-2) altimetry, with retrievals of freeboard, snow depth, and ice thickness that span an 8-month winter between 1 April and 16 November 2019.
S. Kacimi, R. Kwok
semanticscholar +1 more source
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
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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 +3 more
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