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Brief communication "Stratospheric winds, transport barriers and the 2011 Arctic ozone hole"

机译：简报“平流层风，运输障碍和2011年北极臭氧空洞”

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摘要

The Arctic stratosphere throughout the late winter and early spring of 2011 was characterized by an unusually severe ozone loss, resulting in what has been described as an ozone hole. The 2011 ozone loss was made possible by unusually cold temperatures throughout the Arctic stratosphere. Here we consider the issue of what constitutes suitable environmental conditions for the formation and maintenance of a polar ozone hole. Our discussion focuses on the importance of the stratospheric wind field and, in particular, the importance of a high latitude zonal jet, which serves as a meridional transport barrier both prior to ozone hole formation and during the ozone hole maintenance phase. It is argued that stratospheric conditions in the boreal winter/spring of 2011 were highly unusual inasmuch as in that year Antarctic-like Lagrangian dynamics led to the formation of a boreal ozone hole.
机译：整个北极平流层在2011年冬末和初春期间都以异常严重的臭氧流失为特征，这导致了所谓的臭氧洞。整个北极平流层的异常低温使2011年的臭氧损失成为可能。在这里，我们考虑的问题是什么构成了形成和维持极性臭氧孔的合适环境条件。我们的讨论着重于平流层风场的重要性，尤其是高纬度纬向射流的重要性，该纬向射流在臭氧空洞形成之前和臭氧空洞维护阶段均充当子午运输屏障。有人认为，2011年北方冬季/春季的平流层条件非常不寻常，因为同年，类似南极的拉格朗日动力学导致了北方臭氧空洞的形成。

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