The ERA-Interim archive data and circulation calculations using a middle and upper atmosphere model (MUAM) have been used to study dynamic processes in the middle atmosphere. Variations in zonally averaged atmospheric characteristics have been analyzed based on observational data and model calculations. In the middle atmosphere within a range of 10–30 days, synchronous temperature variations are observed within zones extended horizontally and vertically. Horizontally, the sign of such variations changes in the region of jet streams (and remains unchanged at the equator) and, vertically, their sign changes within the stratopause and mesopause regions. The nature of these variations is almost independent of the phase of the quasi-biennial cycle in the equatorial stratosphere. These variations are global in nature and similar to oscillations in meridional circulation cells.

中文翻译：

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中层大气纬向平均环流特征动力学

ERA-Interim 档案数据和使用中高层大气模型 (MUAM) 的环流计算已被用于研究中层大气的动态过程。已根据观测数据和模型计算分析了纬向平均大气特征的变化。在 10-30 天范围内的中间大气中，在水平和垂直延伸的区域内观察到同步温度变化。水平方向，这种变化的符号在急流区域发生变化（在赤道保持不变），垂直方向，它们的符号在平流顶和中层顶区域发生变化。这些变化的性质几乎与赤道平流层准双年周期的阶段无关。