Retrieval of Column Concentrations of OH and Tropospheric 03 From Data Obtained by Ground-Based High Resolution UV- Visible Spectroscopy

从地面高分辨率紫外-可见光谱获得的数据中反演 OH 和对流层 03 的柱浓度

• 批准号: 9526209
• 负责人: Yuk Yung
• 金额: $ 5万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-15 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526209&HistoricalAwards=false
• 关键词: Retrieval; Column; Concentrations; OH; Tropospheric

# ATM-9526209 Yung A one-year feasibility study is proposed which is aimed at improving the knowledge and understanding of HOx in the stratosphere and mesosphere and ozone in the troposphere. The program consists of two elements: retrieval of the integrated vertical column of OH and tropospheric ozone measured by ground-based high resolution UV-visible spectroscopy, and modeling of the temporal variations in the observed quantities. The (independently funded) spectroscopic measurements will be performed at JPL's Table Mountain Observatory using direct solar absorption for OH and zenith solar scattering for O3. The model calculations will be performed using the Caltech-JPL one-dimensional photochemical model. The observed diurnal and seasonal variability of the OH column density will be compared with model calculations to test our understanding of HOx kinetics and photochemistry and the spatial and temporal distributions of other stratospheric species that affect the HOx budget.

#ATM-9526209 Yung提议进行为期一年的可行性研究，其目的是增进对平流层和中间层中的HOX以及对流层中的臭氧的认识和了解。该方案由两部分组成：通过地基高分辨率紫外-可见光谱测量的OH和对流层臭氧的综合垂直柱的反演，以及对观测量的时间变化的模拟。(独立资助的)光谱测量将在喷气推进实验室的台山天文台进行，使用对OH的直接太阳吸收和对O3的天顶太阳散射。模型计算将使用加州理工学院-喷气推进实验室的一维光化学模型进行。观测到的OH柱密度的日变化和季节变化将与模式计算进行比较，以检验我们对HOx动力学和光化学以及影响HOx收支的其他平流层物种的时空分布的理解。