What's in a Name? On the Use and Significance of the Term “Polar Vortex”
What's in a Name? On the Use and Significance of the Term “Polar Vortex”
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DOI：
10.1029/2021gl097617
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发表时间：
2022-01
影响因子：
5.2
通讯作者：
G. Manney;A. Butler;Z. Lawrence;K. Wargan;M. Santee
中科院分区：
文献类型：
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作者：
G. Manney;A. Butler;Z. Lawrence;K. Wargan;M. Santee
主流媒体和科普媒体对“极地涡旋”的误解比比皆是。这个术语最恰当地描述了平流层极涡，这是一个控制15-50公里冷季环流的单一特征。区域急流变化主导对流层环流，这不是很好地描述为极涡;事实上，在文献中没有对流层极涡的单一一致定义。平流层极涡扰动深刻地影响极端天气事件，包括冷空气爆发（CAO）。平流层极涡是如何影响对流层急流的，对流层急流的局部漂移驱动CAO，还没有完全弄清楚。描述这一主题研究的出版物中面向公众的部分并不总是清楚“极地涡旋”是如何定义的;更大的清晰度可以改善社区内部和与非专业受众的沟通。
Mainstream and popular science media are rife with misunderstandings about what a “polar vortex” is. The term most aptly describes the stratospheric polar vortex, a single feature dominating the cool‐season circulation from ∼15–50 km. Regional jet stream variations dominate the tropospheric circulation, which is not well‐described as a polar vortex; indeed, there is no single consistent definition of a tropospheric polar vortex in the literature. Stratospheric polar vortex disturbances profoundly influence extreme weather events, including cold air outbreaks (CAOs). How the stratospheric polar vortex affects tropospheric jets, whose local excursions drive CAOs, is not fully understood. Public‐facing parts of publications describing research on this topic are not always clear about how the “polar vortex” is defined; greater clarity could improve communications both within the community and with non‐specialist audiences.