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

使用 Starfire 和 MesoD 数据模拟中层重力波：CEDAR 研究

• 批准号: 9909250
• 负责人: Michael Hickey
• 金额: $ 5.08万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-15 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9909250&HistoricalAwards=false
• 关键词: Modeling; Mesospheric; Gravity; Waves; Using

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.

该项目将使用从StarFire和Meso-D活动中获得的大量高质量数据，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/低热层区域次要物种分布的影响，以及随后涉及这些次要物种的气辉发射的扰动方面，PI已经取得了相当大的进展。此外，他还开发了一个现实的全波模型，描述了重力波在不均匀大气中的传播。化学/夜辉扰动模型已与其全波模型联系起来，为探索重力波与化学和夜辉过程的相互作用提供了强有力的工具。然而，由于缺乏确凿的测量，他被要求在模拟中做出无法测试的假设。利用Starfire和Meso-D数据集，PI将通过在模型中加入真实的背景风和温度分布来对观测到的夜辉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，评估波对平均态的强迫，并阐明上下大气之间的耦合，来进一步表征该地区的波及其影响。