El Nino-Southern Oscillation effect on diurnal tides in thermosphere and ionosphere
The El Nino-Southern Oscillation(ENSO)is well known as a planetary-scale oceanatmosphere-coupled phenomenon that widely affects global climate and weather systems.However,the knowledge for the ENSO effect on the upper atmosphere including the thermosphere and ionosphere is limited.This study shows the evidence for ENSO variability in the lower thermospheric temperature tides of DW1 and DE3 from 21-year GAIA simulation and 15-year TIME/SABER observation.The ENSO phases significantly control the quasi-biannual oscillation component of the tides in not only the stratosphere,but also the lower thermosphere.On the other hand,the 10-year FORMOSAT-3/COSMIC electron density observation show that the ionospheric diurnal tides respond to the ENSO cold phase in the Northern Hemisphere.The ENSO-related variability in the zonal wind DE3 at the lower thermosphere drives the ionospheric tides.
Yang-Yi Sun Huixin Liu Yasunobu Miyoshi Libo Liu Loren C.Chang
China University of Geosciences(Wuhan)Wuhan 430074 Kyushu University Fukuoka 819-0395 Chinese Academy of Sciences Beijing 100029 National Central University Taoyuan 32001
国内会议
北京
英文
1482-1483
2018-10-21（万方平台首次上网日期，不代表论文的发表时间）