2020•WeatherOpen access

The stratospheric polar vortex and sudden stratospheric warmings

Simon Haydn Lee

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Abstract

The polar vortex is the dominant feature of the wintertime stratosphere. Sometimes, it is unusually strong, while at others it is very weak or destroyed in an event known as a sudden stratospheric warming (SSW). Both can play an important role in driving the type and predictability of the weather we experience at the surface.

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What this paper is about

The polar vortex is the dominant feature of the wintertime stratosphere. Sometimes, it is unusually strong, while at others it is very weak or destroyed in an event known as a sudden stratospheric warming (SSW). Both can play an important role in driving the type and predictability of the weather we experience at the surface.

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Available abstract

The polar vortex is the dominant feature of the wintertime stratosphere. Sometimes, it is unusually strong, while at others it is very weak or destroyed in an event known as a sudden stratospheric warming (SSW). Both can play an important role in driving the type and predictability of the weather we experience at the surface.

Key concepts: Polar vortex, Stratosphere, Sudden stratospheric warming, Jet stream, Atmospheric sciences, Troposphere, Vortex, Polar night

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