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

该项目将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，使用来自Starfire和Meso-D活动的广泛，高质量的数据。 PI已经在模拟重力波对中间层/低热层区域次要物质分布的影响以及随后对涉及这些次要物质的气辉发射的扰动方面取得了可观的进展。 此外，他还开发了一个描述非均匀大气中重力波传播的现实全波模型。 化学/夜光扰动模型已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结果，这些假设无法得到验证。 利用Starfire和Meso-D数据集，PI将通过在模型中纳入真实的背景风和温度分布，对观测到的夜光波动进行逼真的模拟。 这将为PI提供一个独特的机会，通过定量评估波的能量学来进一步表征波及其在该地区的影响，评估波对平均状态的强迫，并阐明高层和低层大气之间的耦合。

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.