CEDAR: The Coupled OH Meinel and O2 Atmospheric Band Nightglow Emissions

CEDAR：耦合 OH Meinel 和 O2 大气波段夜光排放

• 批准号: 2113888
• 负责人: Konstantinos Kalogerakis
• 金额: $ 31.55万
• 依托单位: SRI International
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2113888&HistoricalAwards=false
• 关键词: CEDAR; Coupled; OH; Meinel; O2

This award to SRI International (Dr. Konstantinos Kalogerakis) will support the quantitative reevaluation of the mesosphere and lower thermosphere chemistry based upon new laboratory results. Nightglow emission signatures observed from space and ground-based instruments are commonly used as proxies for atmospheric composition, especially for the altitude region around 100 km that cannot be easily studied in situ. Monitoring the intensity and temporal evolution of such proxies by remote sensing is the method of choice to study many phenomena occurring in this region of the atmosphere. This award would support the quantitative reanalysis of the details relevant to the production and loss of excited atomic and molecular precursors responsible for prominent nightglow emissions. These results would quantify more precisely the study of atmospheric composition, radiative and energy balance, wave propagation and dissipation, as well as transport dynamics. One or two undergraduate students would be engaged in this work through a site REU grant awarded to SRI International.The thrust of this reevaluation to be supported by this award would be aimed at the investigation of the coupling between the OH Meinel and the O2 Atmospheric band emissions, which is connected to the collisions of O atoms with vibrationally excited OH. Part of this study would utilize observational data sets derived from multiple sounding rocket experiments that would be combined with modeling methodologies based upon recently developed efforts based upon new laboratory findings.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

授予SRI International（Konstantinos Kalogerakis博士）的这一奖项将支持根据新的实验室结果对中间层和低热层化学进行定量重新评估。 从空间和地面仪器观测到的夜光发射特征通常被用作大气成分的代用指标，特别是在100公里左右的高度区域，这一区域不易于在原地进行研究。通过遥感监测这些替代物的强度和时间演变是研究这一大气层区域发生的许多现象的首选方法。该奖项将支持定量重新分析与产生和损失的激发原子和分子前体有关的细节，这些前体是造成突出夜光排放的原因。这些结果将更精确地量化对大气组成、辐射和能量平衡、波的传播和消散以及运输动力学的研究。一名或两名本科生将通过授予SRI International的现场REU赠款从事这项工作。该奖项支持的重新评估的重点将旨在研究OH Meinel和O2大气带排放之间的耦合，这与O原子与振动激发OH的碰撞有关。这项研究的一部分将利用来自多个探空火箭实验的观测数据集，这些数据集将与基于新实验室发现的最新成果的建模方法相结合。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。