International collaborative observations of zonal variability in the bottom of the upper atmosphere

钠激光雷达的气辉成像、温度和成分观测中的小尺度特征揭示了大约100公里高度的高层大气底部的带状结构。我们发现了一个显著的纬向变化，但同时，也可以讨论几个纬度差异的影响。在未来的计划中，中层和低热层的二维制图将变得非常重要。

Zonal structures in the bottom of the upper atmosphere region at around 100 km altitude have been revealed by small-scale features in the airglow imaging, temperature and constituent observations by sodium lidars. We found a significant zonal variability, but at the same time, effect of latitudinal difference of several degrees can also be discussed. Two-dimensional mapping in the mesosphere and lower thermosphere will become very important in the future programs.