Mechanisms and predictability of sudden stratospheric warming in winter 2018 [PDF]
Weather and Climate Dynamics, 2020 In the beginning of February 2018 a rapid deceleration of the westerly circulation in the polar Northern Hemisphere stratosphere took place, and on 12 February the zonal-mean zonal wind at 60∘ N and 10 hPa reversed to easterly in a sudden ...
I. A. Statnaia +3 more
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Local and remote response of ozone to Arctic stratospheric circulation extremes [PDF]
Atmospheric Chemistry and Physics, 2021 Intense natural circulation variability associated with stratospheric sudden warmings, vortex intensifications, and final warmings is a typical feature of the winter Arctic stratosphere.
H.-J. Hong, H.-J. Hong, T. Reichler
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Tracking the Stratosphere‐to‐Surface Impact of Sudden Stratospheric Warmings [PDF]
Journal of Geophysical Research: Atmospheres, 2021 AbstractSudden stratospheric warming (SSW) events are extreme atmospheric regimes which can have a signature in surface weather up to 40 days after event onset in the stratosphere. SSWs can be classified as either vortex splitting or vortex displacement events, with the nature and timing of the surface impact potentially being different between the two.
Richard J. Hall +3 more
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Sudden Stratospheric Warmings [PDF]
Reviews of Geophysics, 2020 Abstract Sudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which large and rapid temperature increases in the winter polar stratosphere ( ∼ 10–50 km) are associated with a complete reversal of the climatological wintertime westerly winds. SSWs are
Mark P. Baldwin +12 more
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The role of wave–wave interactions in sudden stratospheric warming formation [PDF]
Weather and Climate Dynamics, 2020 The effects of wave–wave interactions on sudden stratospheric warming formation are investigated using an idealized atmospheric general circulation model, in which tropospheric heating perturbations of zonal wave numbers 1 and 2 are used to produce ...
E. A. Lindgren, A. Sheshadri
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A sudden stratospheric warming compendium [PDF]
Earth System Science Data, 2016 Abstract. Major, sudden midwinter stratospheric warmings (SSWs) are large and rapid temperature increases in the winter polar stratosphere are associated with a complete reversal of the climatological westerly winds (i.e., the polar vortex). These extreme events can have substantial impacts on winter surface climate, including increased frequency of ...
Amy H. Butler +3 more
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On the Influence of ENSO on Sudden Stratospheric Warmings
Journal of Geophysical Research: Atmospheres, 2023 Abstract Using the extended ERA5 reanalysis and three state‐of‐the‐art models, this study explores how El Niño‐Southern Oscillation (ENSO) can influence the total frequency, seasonal cycle and preconditioning of sudden stratospheric warmings (SSWs).
Palmeiro, F. +4 more
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Geophysical Monograph Series, Page 169-190., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi +9 more
wiley +1 more source
Stratosphere-troposphere coupling during stratospheric extremes in the 2022/23 winter
Weather and Climate Extremes, 2023 Using the ERA5 reanalysis, sea surface temperature, sea ice observations, and the real-time multivariate Madden-Julian Oscillation (MJO) index, the evolution of the stratospheric extreme circulation in the winter of 2022/2023 is explored.
Qian Lu +5 more
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The Downward Influence of Stratospheric Sudden Warmings* [PDF]
Journal of the Atmospheric Sciences, 2014 Abstract The coupling between the stratosphere and the troposphere following two major stratospheric sudden warmings is studied in the Canadian Middle Atmosphere Model using a nudging technique by which the zonal-mean evolution of the reference sudden warmings are artificially induced in an ~100-member ensemble spun off from a control ...
Hitchcock, Peter, Simpson, Isla R.
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