Rayleigh and Sodium Lidar Studies of the Troposphere, Stratosphere and Mesosphere at the Amundsen-Scott South PoleStation

阿蒙森-斯科特南极站对流层、平流层和中间层的瑞利和钠激光雷达研究

• 批准号: 9022467
• 负责人: Chester Gardner
• 金额: $ 36万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022467&HistoricalAwards=false
• 关键词: Rayleigh; Sodium; Lidar; Studies; Troposphere

This grant provides funds for the analysis of the data obtained from a sodium lidar the was operated at South Pole throughout 1990 and also to begin the development of improved lidar systems for a new South Pole lidar facility. The earlier instrument made measurements of polar stratospheric clouds (PSCs), which play an important role in the development of the annual stratospheric ozone hole, and also measured the motions of the sodium layer near the mesopause (approximately 90 km altitude) to elucidate the dynamics of the mesosphere and lower thermosphere (MALT) region. It is expected that the proposed new lidar facility will be built in conjunction with colleagues from the University of Rome with the support of the Italian Antarctic Program. The improved lidar systems will be able to measure high altitude temperatures and also determine the characteristics of stratospheric aerosols as well as detect PSCs and the sodium layer. These studies are important for the understanding of stratospheric chemistry and the causes of polar ozone depletion and for understanding the dynamics of the MALT region. There will be a significant contribution to the Coupling of Energetics and Dynamics through Atmospheric Regions (CEDAR) initiative. This project is jointly supported by NSF's Divisions of Polar Programs and Atmospheric Sciences.

该赠款为分析从钠激光钠获得的数据分析提供资金，整个1990年在南极运营，并开始开发改进的南极激光雷达设施的激光雷达系统。 较早的仪器对极地平流层云（PSC）进行了测量，该仪器在年度平流层臭氧孔的发展中起着重要作用，还测量了钠层附近钠层的运动（约90 km海拔90 km），以阐明动力学中层和下热层（麦芽）区域。 预计拟议的新LIDAR设施将与意大利南极计划的支持下与罗马大学的同事共同建造。 改进的LiDAR系统将能够测量高海拔温度，并确定平流层气溶胶以及检测PSC和钠层的特征。 这些研究对于理解平流层化学和极性臭氧耗竭的原因以及了解麦芽区域的动力学很重要。 通过大气区域（Cedar）倡议，将对能量和动力学的耦合做出重大贡献。 该项目由NSF的极地计划和大气科学的划分共同支持。