Modeling Mesospheric Gravity Waves Using Starfire and MesoD Data: A CEDAR Study

该项目将使用来自Starfire和Meso-D项目的大量高质量数据，严格测试描述重力波及其与中间层化学过程和相关夜光相互作用的模型。在模拟重力波对中间层/低层热层区域小物种分布的影响以及随后涉及这些小物种的气辉辐射扰动方面，PI已经取得了相当大的进展。此外，他还开发了一个真实的全波模型，描述了重力波在非均匀大气中的传播。化学/夜光扰动模型已经与他们的全波模型联系起来，为探索重力波与化学和夜光过程的相互作用提供了一个强大的工具。然而，他被要求在模拟中做出假设，由于缺乏确凿的测量，这些假设无法得到验证。利用Starfire和Meso-D数据集，PI将在模型中结合真实的背景风和温度剖面，对观测到的夜光波动进行真实的模拟。这将为PI提供一个独特的机会，通过定量评估波的能量学，评估波对平均状态的强迫，以及阐明高层和低层大气之间的耦合，进一步表征波及其在该地区的影响。

Ths project will rigorously test models describing grvity waves and their interaction with chemical processes and associated nightglow in the mesosphere, using extensive, high-quality data derived from the Starfire and Meso-D campaigns. The PI has already progressed considedrably in modeling the effects of gravity waves on the distributions of minor species in tghe mesosphere/lower thermosphere region, and of subsequent perturbations in thed airglow emissions involving these minor species. In addition, he has developed a realistic full-wave model describing gravity wave propagation in an inhomogeneous atmosphere. The chemical/nightglow perturbation model has been linked with their full-wave model to provide a powerful tool for exploring gravity wave interactions with chemical and nightglow processes. However, he was required to make assumptions in simulations that couldn't be tested due to lack of corroborative measurements. With the Starfire and Meso-D data sets, the PI will perform realistic simulations of observed nightglow fluctuations by incorporating realistic background winds and temperature profiles in the model. This will provide a unique opportunity for the PI to further characterize waves and their effects in the region by quantitatively evaluating the energetics of the waves, evaluate the forcing of the mean state by the waves, and elucidate the coupling between tghe upper and lower atmosphere.