Airglow and Auroral Studies of the Earth's Upper Atmospheres

地球高层大气的气辉和极光研究

• 批准号: 9906408
• 负责人: Manfred Biondi
• 金额: $ 12.38万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9906408&HistoricalAwards=false
• 关键词: Airglow; Auroral; Studies; Earth; Upper

The investigator will study the dynamics of the neutral thermosphere and the mesopause and the coupling effects between these regions and the ionospheric plasma. The study will use various forms of Fabry-Perot interferometers that determine velocities and temperatures from measured Doppler shifts and widths of selected nightglow emissions such as the 630 nm line of atomic oxygen. Observations will be made at the University of Pittsburgh, at the Arequipa Automated Airglow Observatory in Peru, and at the Millstone Hill Observatory in Massachusetts. Determinations of Doppler shifts and widths of nightglow emission lines will be made by upgraded Fabry-Perot interferometer instruments with improved sensitivity. A new zero velocity reference source emitting the forbidden oxygen lines at 630.0 and 577.7 nm will be used for improved lower and upper thermosphere horizontal and vertical velocity determinations. From these observations, the climatology of the wind and temperature fields at each altitude will be deduced and coupling effects between the regions will be studied.

调查员将研究中性热层和中层顶的动态以及这些区域与电离层等离子体之间的耦合效应。 这项研究将使用各种形式的法布里-珀罗干涉仪，从测量的多普勒频移和选定的夜光发射，如630纳米线的原子氧的宽度来确定速度和温度。 观测将在匹兹堡大学、秘鲁的阿雷基帕自动气辉观测站和马萨诸塞州的米尔斯石山观测站进行。 将使用灵敏度得到提高的升级法布里-珀罗干涉仪来确定夜光发射谱线的多普勒频移和宽度。 发射630.0和577.7 nm禁氧谱线的新的零速度参考源将用于改进热层下部和上部水平和垂直速度的测定。 根据这些观测结果，将推断出每个高度的风场和温度场的气候学，并将研究区域之间的耦合效应。