Two major sudden stratospheric warmings during winter 2023/2024

Simon Haydn Lee; Amy Butler; Gloria L. Manney

doi:10.1002/wea.7656

Two major sudden stratospheric warmings during winter 2023/2024

Simon Haydn Lee^*, Amy Butler, Gloria L. Manney

^*Corresponding author for this work

School of Earth & Environmental Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Major sudden stratospheric warmings (SSWs) occur in the Arctic around six times per decade. During winter 2023/2024, two major SSWs occurred – a relatively rare event, having occurred on average only once per decade. Here, we summarise the evolution of the two SSWs, their dynamics and impacts on stratospheric chemical processing and tropospheric weather patterns. While both SSWs were displacement events, they evolved remarkably differently. The 16 January SSW was short-lived and did not exert a canonical influence on surface weather. In contrast, the 4 March SSW followed a more typical evolution, albeit with only weak coupling to the troposphere.

Original language	English
Pages (from-to)	45-53
Number of pages	9
Journal	Weather
Volume	80
Issue number	2
Early online date	16 Dec 2024
DOIs	https://doi.org/10.1002/wea.7656
Publication status	Published - 5 Feb 2025

Keywords

Sudden stratospheric warming
Polar vortex
Subseasonal
SSW
Northern Annular Mode
Arctic
Ozone

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10.1002/wea.7656Licence: CC BY

Lee_2024_Weather_Two-major-sudden-stratospheric-warmings_CC
Copyright © 2024 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Final published version, 15.6 MBLicence: CC BY

Cite this

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title = "Two major sudden stratospheric warmings during winter 2023/2024",

abstract = "Major sudden stratospheric warmings (SSWs) occur in the Arctic around six times per decade. During winter 2023/2024, two major SSWs occurred – a relatively rare event, having occurred on average only once per decade. Here, we summarise the evolution of the two SSWs, their dynamics and impacts on stratospheric chemical processing and tropospheric weather patterns. While both SSWs were displacement events, they evolved remarkably differently. The 16 January SSW was short-lived and did not exert a canonical influence on surface weather. In contrast, the 4 March SSW followed a more typical evolution, albeit with only weak coupling to the troposphere.",

keywords = "Sudden stratospheric warming, Polar vortex, Subseasonal, SSW, Northern Annular Mode, Arctic, Ozone",

author = "Lee, {Simon Haydn} and Amy Butler and Manney, {Gloria L.}",

note = "Funding: G. L. Manney was supported by the Jet Propulsion Laboratory (JPL) Microwave Limb Sounder team under JPL subcontract #521127 to NWRA.",

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AU - Lee, Simon Haydn

AU - Butler, Amy

AU - Manney, Gloria L.

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PY - 2025/2/5

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N2 - Major sudden stratospheric warmings (SSWs) occur in the Arctic around six times per decade. During winter 2023/2024, two major SSWs occurred – a relatively rare event, having occurred on average only once per decade. Here, we summarise the evolution of the two SSWs, their dynamics and impacts on stratospheric chemical processing and tropospheric weather patterns. While both SSWs were displacement events, they evolved remarkably differently. The 16 January SSW was short-lived and did not exert a canonical influence on surface weather. In contrast, the 4 March SSW followed a more typical evolution, albeit with only weak coupling to the troposphere.

AB - Major sudden stratospheric warmings (SSWs) occur in the Arctic around six times per decade. During winter 2023/2024, two major SSWs occurred – a relatively rare event, having occurred on average only once per decade. Here, we summarise the evolution of the two SSWs, their dynamics and impacts on stratospheric chemical processing and tropospheric weather patterns. While both SSWs were displacement events, they evolved remarkably differently. The 16 January SSW was short-lived and did not exert a canonical influence on surface weather. In contrast, the 4 March SSW followed a more typical evolution, albeit with only weak coupling to the troposphere.

KW - Sudden stratospheric warming

KW - Polar vortex

KW - Subseasonal

KW - SSW

KW - Northern Annular Mode

KW - Arctic

KW - Ozone

U2 - 10.1002/wea.7656

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SP - 45

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JO - Weather

JF - Weather

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ER -

Two major sudden stratospheric warmings during winter 2023/2024

Abstract

Keywords

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