The intensification of metallic layered phenomena above thunderstorms through the modulation of atmospheric tides
The intensification of metallic layered phenomena above thunderstorms through the modulation of atmospheric tides
复制标题
通过大气潮汐的调制，雷暴上方金属层状现象的加剧
DOI：
10.1038/s41598-019-54450-1
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发表时间：
2019
影响因子：
4.6
通讯作者：
Qie Xiushu
中科院分区：
文献类型：
--
作者：
Yu Bingkun;Xue Xianghui;Kuo Chengling;Lu Gaopeng;Scott Christopher J.;Wu Jianfei;Ma Ju;Dou Xiankang;Gao Qi;Ning Baiqi;Hu Lianhuan;Wang Guojun;Jia Mingjiao;Yu Chao;Qie Xiushu
我们提出了一个多仪器实验，研究对流层雷暴对中层顶区和低电离层的影响。利用钠激光雷达和两台数字电离层探测仪的观测资料，研究了雷暴上空中性金属原子和金属离子的变化。观测到一个增强的电离层零星E层，其潮汐相位向下，随后中性Na数密度增强，中间层增加了600 cm− 3。此外，在一个钠化学模式中考虑了钠的中性化学和离子分子化学，模拟了雷暴上空中间层和电离层的动力学和化学耦合过程。利用电离层观测数据模拟得到的增强钠层与钠激光雷达观测结果一致。我们发现，雷暴上空的金属层状现象的增强与大气潮汐有关，是对流层-中间层-电离层耦合的结果。
We present a multi-instrument experiment to study the effects of tropospheric thunderstorms on the mesopause region and the lower ionosphere. Sodium (Na) lidar and ionospheric observations by two digital ionospheric sounders are used to study the variation in the neutral metal atoms and metallic ions above thunderstorms. An enhanced ionospheric sporadicElayer with a downward tidal phase is observed followed by a subsequent intensification of neutral Na number density with an increase of 600 cm−3in the mesosphere. In addition, the Na neutral chemistry and ion-molecule chemistry are considered in a Na chemistry model to simulate the dynamical and chemical coupling processes in the mesosphere and ionosphere above thunderstorms. The enhanced Na layer in the simulation obtained by using the ionospheric observation as input is in agreement with the Na lidar observation. We find that the intensification of metallic layered phenomena above thunderstorms is associated with the atmospheric tides, as a result of the troposphere-mesosphere-ionosphere coupling.