Record low Antarctic sea ice coverage indicates a new sea ice state
Communications Earth & Environment, 2023 In February 2023, Antarctic sea ice set a record minimum; there have now been three record-breaking low sea ice summers in seven years. Following the summer minimum, circumpolar Antarctic sea ice coverage remained exceptionally low during the autumn and ...
Ariaan Purich, Edward W. Doddridge
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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 +4 more
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Robust Arctic warming caused by projected Antarctic sea ice loss
Environmental Research Letters, 2020 Over the coming century, both Arctic and Antarctic sea ice cover are projected to substantially decline. While many studies have documented the potential impacts of projected Arctic sea ice loss on the climate of the mid-latitudes and the tropics, little
M R England, L M Polvani, L Sun
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Delayed Antarctic sea-ice decline in high-resolution climate change simulations. [PDF]
Nat Commun, 2022 Despite global warming and Arctic sea-ice loss, on average the Antarctic sea-ice extent has not declined since 1979 when satellite data became available.
Rackow T +7 more
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Observed Antarctic sea ice expansion reproduced in a climate model after correcting biases in sea ice drift velocity. [PDF]
Nat Commun, 2021 The Antarctic sea ice area expanded significantly during 1979–2015. This is at odds with state-of-the-art climate models, which typically simulate a receding Antarctic sea ice cover in response to increasing greenhouse forcing.
Sun S, Eisenman I.
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Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016. [PDF]
Nat Commun, 2019 After nearly three decades of observed increasing trends of Antarctic sea ice extent, in September-October-November 2016, there was a dramatic decrease. Here we document factors that contributed to that decrease. An atmosphere-only model with a specified
Meehl GA +7 more
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Compounding tropical and stratospheric forcing of the record low Antarctic sea-ice in 2016. [PDF]
Nat Commun, 2019 After exhibiting an upward trend since 1979, Antarctic sea ice extent (SIE) declined dramatically during austral spring 2016, reaching a record low by December 2016.
Wang G +5 more
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A 40-y record reveals gradual Antarctic sea ice increases followed by decreases at rates far exceeding the rates seen in the Arctic. [PDF]
Proc Natl Acad Sci U S A, 2019 Significance A newly completed 40-y record of satellite observations is used to quantify changes in Antarctic sea ice coverage since the late 1970s. Sea ice spreads over vast areas and has major impacts on the rest of the climate system, reflecting solar
Parkinson CL.
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Record low 2022 Antarctic sea ice led to catastrophic breeding failure of emperor penguins
Communications Earth & Environment, 2023 The spring season of 2022 saw record low sea ice extent in Antarctica that persisted throughout the year. At the beginning of December, the Antarctic sea ice extent was tracking with the all-time low set in 2021. The greatest regional negative anomaly of
P. Fretwell, A. Boutet, N. Ratcliffe
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Record Low Antarctic Sea Ice Cover in February 2022
Geophysical Research Letters, 2022 On 25 February 2022 Antarctic sea ice extent dropped to a satellite‐era record low level of 1.92 × 106 km2, 0.92 × 106 km2 below the long‐term mean. The area of sea ice was also at a record low level of 1.24 × 106 km2.
J. Turner +8 more
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