CEDAR: Comparative Mesospheric Gravity Wave Activity Observed Along a Chain of Sub-Tropical to Mid-Latitude MF Radars

通过对中气层风纬向变化的气候学研究，阐明了从对流层顶到中间层的波活动耦合，以及重力波对中间层的差动强迫。她使用了一年的数据，这些数据是从横跨亚热带和中纬度地区的一系列中频雷达上收集的。她的综合研究比较了纬度链上每个站点的中间层波活动的气候变率。这些比较提供了波活动纬向变化的定量测量。简单的模式，评估其准确再现中间层波活动的特征，包括波的传播，饱和度和临界层滤波。Thorsen正在帮助未来的建模工作，通过澄清控制风变化的主要机制（当被雷达观察到时）。

Through climatological studies of the mesospheric wind latitudinal variation, the investigator clarifies wave activity coupling from the tropopause to the mesosphere, and differential forcing of the mesosphere by gravity waves. She uses one year worth of data, collected from a chain of medium frequency radars spanning sub-tropical and mid-latitude regions. Her comprehensive study compares the climatological variability of mesospheric wave activity at each station in the latitude chain. These compares provide quantitative measures of the latitudinal variation of wave activity. Simple models, assessed for their accurate reproduction of the mesospheric wave activity's characteristics, incorporate wave propagation, saturation and critical layer filtering. Thorsen is aiding future modeling efforts, by clarifying the dominant mechanisms controlling wind variance (when observed by radar).