CEDAR: Investigation of Baroclinic Disturbances in the Polar Wintertime Middle Atmosphere

本研究的目的是研究冬季极地平流层和中间层之间的垂直耦合，并探讨在平流层强斜压条件下导致极地冬季中间层显著扰动的机制。该项目将利用卫星观测对平流层和中间层的全球温度测量，结合广泛的地面观测，详细探索和研究这些斜压结构。此外，经验和数值模型将被用来再现观察到的现象，并发展对垂直耦合、行星波活动和机制过程的更完整的物理理解。地面测量将包括格陵兰岛的瑞利激光雷达测量和北极和南极干涉测量的羟基温度。除大气观测外，PIS还将把它们的观测与大气社区模式结合起来，例如全大气气候社区模式(WACCM)。

The research is to study vertical coupling in the wintertime polar regions between the stratosphere and mesosphere and to investigate the mechanisms leading to significant disturbances of the polar wintertime mesosphere during strong baroclinic conditions in the stratosphere. The project will explore and study these baroclinic structures in detail by utilizing global temperature measurements of the stratosphere and mesosphere from satellite observations combined with extensive ground-based observations. Furthermore, empirical and numerical models will be employed to reproduce the observed phenomena and develop a more complete physical understanding of the vertical coupling, planetary wave activity, and mechanistic processes. The ground-based measurements will include Rayleigh LIDAR measurements from Greenland and hydroxyl temperatures from interferometric measurements in Arctic and Antarctic. In addition to the atmospheric observations, the PIs will combine their observations with atmospheric community models such as the Whole-Atmosphere Climate Community Model (WACCM).