...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of geophysical research >Unexpected Decrease in TW3 Amplitude During Antarctic Sudden Stratospheric Warming Events as Revealed by SD-WACCM-X
【24h】

Unexpected Decrease in TW3 Amplitude During Antarctic Sudden Stratospheric Warming Events as Revealed by SD-WACCM-X

机译：Unexpected Decrease in TW3 Amplitude During Antarctic Sudden Stratospheric Warming Events as Revealed by SD-WACCM-X

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

摘要

The specified dynamics Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (SD-WACCM-X) was utilized to explore migrating tidal variabilities that occurred during the 2002, 2010, and 2019 Antarctic sudden stratospheric warming (SSW) events. All migrating tides show prominent day-to-day variations in the mesosphere and lower thermosphere regions, which can be mainly attributed to each Antarctic SSW event. The westward propagating diurnal tide with zonal wavenumber 1 (DW1) and the westward propagating semidiurnal tide with zonal wavenumber 2 (SW2) show a distinct reduction and an increase during each Antarctic SSW event, respectively. Specifically, the westward propagating terdiurnal tide with zonal wavenumber 3 (TW3) shows an unexpected decrease, which is opposite to the behaviors of TW3 reported during Arctic SSW events. We conclude that the unexpected decrease in TW3 may be mainly caused by the nonlinear interaction between DW1 and SW2, in which DW1 may play a major role. In the ionosphere, the TW3 amplitudes also show a decrease during each Antarctic SSW event, which is in consistency with decreasing tidal amplitudes in the neutral atmosphere. Our study demonstrates that TW3 is also a considerable source for short-term ionospheric variability during Antarctic SSW events.

著录项

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