Mesospheric Gravity Wave Momentum Flux Associated With a Large Thunderstorm Complex
Mesospheric Gravity Wave Momentum Flux Associated With a Large Thunderstorm Complex
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DOI：
10.1029/2020jd033381
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
Steven M. Smith;M. Setvák;Y. Beletsky;J. Baumgardner;M. Mendillo
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文献类型：
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作者：
Steven M. Smith;M. Setvák;Y. Beletsky;J. Baumgardner;M. Mendillo
我们报告了与 2016 年 3 月 17 日至 18 日夜间发生在阿根廷埃尔莱昂西托天文台（南纬 31.8°，西经 69.3°）上空的广泛而明亮的中层重力波事件相关的水平动量垂直通量的估计。结合地面和天基数据源，我们提出该事件是由位于观测地点东南部的大型且遥远的雷暴复合体产生的。肉眼观察者很容易看到夜光，包括波浪结构，这种现象被称为“亮夜”。这种“极端事件”阐明了向上耦合在空间天气研究中的重要作用。
We report on estimates of the vertical flux of horizontal momentum associated with an extensive and bright mesospheric gravity wave event that occurred over the El Leoncito Observatory, Argentina (31.8°S, 69.3°W), during the night of 17–18 March 2016. Using a combination of ground‐based and space‐based data sources, we propose that the event was generated by a large and distant thunderstorm complex located to the southeast of the observation site. The nightglow, including the wave structures, was easily visible to naked eye observers, a phenomenon known as a Bright Night. Such “extreme events” illuminate the important role of upward coupling in space weather research.