The Non-Migrating DE3 Tide Response to the MJO Phenomenon at the MLT Altitudes

IF 2.6 2区 地球科学 Q2 ASTRONOMY & ASTROPHYSICS
Xing Li, Zhipeng Ren, Jinbin Cao
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引用次数: 0

Abstract

Based on TIMED/SABER temperature observations and the Real-Time Multivariate Madden-Julian Oscillation (MJO) Index, for the first time, we discussed the daily resolution non-migrating DE3 temperature tide response to the MJO phenomenon during MJO phases between ±45° latitude from 2003 to 2012 in the Mesosphere and Lower Thermosphere (MLT) region. We found: (a) The DE3 tide significantly depends on different MJO phases in the four seasons above 100 km altitude. The DE3 tidal phase exhibits varying responses to the different MJO phases. (b) The DE3 tide response to the MJO phenomenon is stronger at the solstices than at the equinoxes, and the response at the June solstices is stronger. (c) The symmetric component of the DE3 response to the MJO phenomenon is stronger than the asymmetric component. In summary, the daily resolved DE3 tide response to the MJO phenomenon, especially the DE3 tidal phase dominates certain seasonal characteristics and symmetry in the MLT region.

MLT高空非移动DE3潮汐对MJO现象的响应
基于TIMED/SABER温度观测和实时多变量马登-朱利安涛动(MJO)指数,我们首次讨论了2003-2012年中层和低热层(MLT)区域±45°纬度之间MJO相位期间日分辨率非迁移DE3温度潮对MJO现象的响应。我们发现:(a)在 100 公里高度以上的四个季节中,DE3 潮汐明显取决于不同的 MJO 相位。DE3 潮汐相位对不同的 MJO 相位表现出不同的响应。(b) DE3 潮汐对 MJO 现象的响应在至日比在分日更强,在六月至日的响应更强。(c) DE3 对 MJO 现象的对称响应强于不对称响应。总之,日解析 DE3 潮汐对 MJO 现象的响应,特别是 DE3 潮汐相位在 MLT 区域主导某些季节特征和对称性。
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来源期刊
Journal of Geophysical Research: Space Physics
Journal of Geophysical Research: Space Physics Earth and Planetary Sciences-Geophysics
CiteScore
5.30
自引率
35.70%
发文量
570
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