...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Responses of the Ionosphere and Neutral Winds in the Mesosphere and Lower Thermosphere in the Asian- Australian Sector to the 2019 Southern Hemisphere Sudden Stratospheric Warming
【24h】

Responses of the Ionosphere and Neutral Winds in the Mesosphere and Lower Thermosphere in the Asian- Australian Sector to the 2019 Southern Hemisphere Sudden Stratospheric Warming

机译：电离层和中性风的反应中间层和较低的热大气层亚洲-澳大利亚部门2019年的南方半球突然平流层变暖

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, the neutral winds from meteor radars and the total electron content (TEC) from Beidou Geostationary (GEO) satellites were utilized to study the responses of the mesosphere and lower thermosphere and the ionosphere in the Asian-Australian sector to the recent Sudden Stratospheric Warming (SSW) occurred in the Antarctic polar region during September 2019. It was demonstrated that the ionospheric TEC increased significantly, especially around the equatorial ionization anomaly (EIA) region during this SSW. A pronounced semidiurnal signature in the deviation TEC was observed near the EIA crest region, which was more significant in the southern hemisphere. Meanwhile, the enhancement period of the amplitudes of solar and lunar semidiurnal tides in winds in the mesosphere was coincided with that in TEC. The solar semidiurnal amplitudes increased from about 18 to 35 m/s in the zonal wind and from 15 to 25 m/s in the meridional wind at Mengcheng (33.4°N, 116.5°E, MLAT 27.4°N), and from about 15-38 m/s in the zonal wind at Kunming (25.6°N, 103.6°E, MLAT 19.3°N). The lunar semidiurnal amplitudes increased from 2 to 6 m/s in the zonal wind and from about 3-9 m/s in the meridional wind at Mengcheng, and from about 3-7 m/s in the meridional wind at Kunming, respectively. These indicated that the semidiurnal signature in TEC during the 2019 southern hemisphere SSW could be associated with the SSW induced by the atmospheric semidiurnal tide variations in the mesosphere.
机译：在这项研究中,来自流星的中性风雷达和总电子含量(TEC)北斗地球静止轨道(GEO)卫星研究利用中间层的反应和较低的热大气层、电离层Asian-Australian部门最近突然平流层变暖(f)发生2019年9月期间南极极地。证明了电离层TEC吗显著增加,特别是在在赤道电离异常(EIA)区域这个量。EIA波峰附近的偏差TEC观察地区,这是更重要的南半球。太阳和月球的振幅半日潮风在中间层恰逢侦探。振幅增加从18到35米/秒纬向风和从15到25米/秒经向风蒙城县(33.4°N, 116.5°E,MLAT 27.4°N),从15-38 m / s纬向风在昆明(25.6°N, 103.6°E, MLAT19.3°N)。从2增加到6 m / s的纬向风和从3 - 9 m / s的经向风蒙城县,大约3 - 7米/秒分别在昆明经向风。表明TEC的半日签名可能是西南偏南约在2019年南半球与f诱导的大气半日潮的变化中间层。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号