CEDAR: Formation Mechanisms for Neutral Density Cells in the Lower Thermosphere at High Latitudes

这一提议涉及电离层和低热层之间的耦合，这种耦合导致高纬度低热层中的大尺度结构。 PI使用TIGCM成功地研究了细胞结构的形态，并使用两个独立的卫星数据集证实了它们的存在。 这一提议与了解低热层非常相关。 随着高层和低层大气之间的耦合在未来几年成为焦点，了解是什么导致了低层热层的观测行为，并能够将高纬度强迫的影响与向上传播的潮汐和重力波的影响分开将变得越来越重要。 因此，这项工作将对研究低热层--大气中最不了解的区域--做出重要贡献。

This proposal addresses coupling between the ionosphere and lower thermosphere which leads to large scale structure in the lower thermosphere at high latitudes. The PI has successfully investigated the morphology of cell structures using the TIGCM, and confirmed their existence using two independent satellite data sets. This proposal is very relevant to understanding the lower thermosphere. As the coupling between the upper and lower atmosphere comes into focus over the next few years, it will be increasingly important to understand what causes the observed behavior of the lower thermosphere, and to be able to separate the effects of high latitude forcing from those due to upward propagating tides and gravity waves, for example. The work, therefore, will represent a vital contribution to the study of the lower thermosphere - the least understood region of the atmosphere.