CEDAR: Equatorial and Global Studies of Large-Scale Dynamics Using MF Radar

该项目在副热带南半球安装了一台新的微波雷达，用于赤道和全球中间层和低热层(MLT)大尺度动力学的相关研究。该雷达位于南半球的一个地点，与夏威夷运行的一个类似系统相连，将对目前没有测量能力的地点的大气潮汐结构提供灵敏度。PI将使用新的和现有雷达的数据来检查半球间潮汐结构和变率、对低层大气源变化的潮汐响应以及MLT中其他行星尺度运动的全球结构和纬向波数。赤道和亚热带潮汐变化的分析与大气对当地潮汐强迫的响应的并行数值研究密切相关，从而能够定量地了解潮汐变化的原因。

This project installs a new MF radar in the subtropical southern hemisphere and for use in correlative studies of large-scale dynamics of the equatorial and global mesosphere and lower thermosphere (MLT). The radar, located at a southern hemisphere site conjugate to a similar system operating in Hawaii, would provide sensitivity to atmospheric tidal structures in a location with no present measurement capabilities. The PI will use data from new and existing radars to examine interhemispheric tidal structure and variability, tidal responses to source variations in the lower atmosphere, and global structure and zonal wave numbers of other planetary-scale motions in the MLT. Analyses of equatorial and subtropical tidal variability closely link to parallel numerical studies of the atmospheric responses to local tidal forcing, enabling a quantitative understanding of the causes of tidal variability.