CEDAR: Analysis of Wave Motions in the Mesopause from Lidar Measurements and Numerical Models

研究人员将利用理论模型和激光雷达测量中部大气来研究重力波在中层顶区域的传播和耗散。该研究的一个组成部分是将高分辨率、多分量激光雷达数据与非线性重力波的数值模式耦合起来，以确定激光雷达数据中观测到的主要过程及其对中间层顶波强迫的相对贡献。此外，研究人员将利用结果为单组分激光雷达测量开发更强大的分析程序。该研究将扩展当前对激光雷达数据的分析，以表征破碎波，而不是专注于最容易观察和量化的准线性特征。该研究还将把这些结果纳入单分量激光雷达数据的分析中，以便根据不同破波过程的可变性来解释数据集。了解不同的破波过程在中间层中的作用，对于理解全球环流和评估中层大气的长期变率具有重要意义。

The investigators will study the propagation and dissipation of gravity waves in the mesopause region using theoretical modeling and lidar measurements of the middle atmosphere. One element of the study involves the coupling of high resolution, multi-component lidar data with numerical models of nonlinear gravity waves to determine the dominant processes observed in the lidar data and their relative contribution to wave forcing in the mesopause. Additionally, the investigators will use the results to develop more robust analysis procedures for single-component lidar measurements. The research will extend the current analysis of lidar data to characterize the breaking waves rather than focusing on the quasi-linear characteristics that are most easily observed and quantified. The study will also incorporate these results in the analysis of single-component lidar data to allow interpretation of data sets in terms of variability in different wave breaking processes. Understanding the role of different wave breaking processes in the mesosphere is important for understanding the global circulation and assessing the long term variability of the middle atmosphere.