Observations and Analysis of Atmospheric Hydroxyl

大气羟基的观测与分析

• 批准号: 9521767
• 负责人: Kenneth Minschwaner
• 金额: $ 11.74万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-12-01 至 1998-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9521767&HistoricalAwards=false
• 关键词: Observations; Analysis; Atmospheric; Hydroxyl

9521767 Minschwaner This project will be a continuation of the 18-year hydroxyl radical (OH) observation record at Fritz Peak, Colorado. Ground-based measurements of the resonant absorption of sunlight at 308 nm are performed to yield atmospheric OH column amounts. OH is one of the most chemically active constituents in the atmosphere. The photochemistry of OH is intimately connected to the budget of stratospheric ozone and is a major factor in the efficiency of ozone destruction by nitrogen and chlorine compounds. Measurements of OH are crucial to understanding natural and anthropogenic change in the Earth's atmosphere. In addition to the continued measurements at Fritz Peak, a second, similar instrument will be refurbished at New Mexico Institute of Mining and Technology and intercompared with the Fritz Peak as well as other instruments. Modeling and analysis will be carried out on the new data as well as the existing record in order to better understand the seasonal and long-term behavior of OH and its interrelationship with other changes in composition of the atmosphere.

这个项目将是在科罗拉多州弗里茨峰18年羟基自由基（OH）观测记录的延续。在308 nm处对太阳光的共振吸收进行地基测量，以获得大气OH柱的量。氢氧根是大气中最活跃的化学成分之一。OH的光化学与平流层臭氧的收支密切相关，并且是氮和氯化合物破坏臭氧效率的一个主要因素。OH的测量对于了解地球大气中的自然和人为变化至关重要。除了继续在弗里茨峰进行测量外，将在新墨西哥采矿和技术研究所翻新另一台类似的仪器，并与弗里茨峰和其他仪器进行比较。将对新数据和现有记录进行建模和分析，以便更好地了解OH的季节性和长期行为及其与大气成分其他变化的相互关系。