Airglow and Auroral Studies of the Earth's Upper Atmospheres

研究人员将研究中性热层和中层顶的动力学，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-珀罗涉仪，根据测量的多普勒频移和选定夜辉发射的宽度来确定速度和温度，例如原子氧的630 nm线。观测将在匹兹堡大学、秘鲁的阿雷基帕自动化气辉天文台和马萨诸塞州的米尔斯通山天文台进行。通过改进灵敏度的法布里-珀罗涉仪仪器，将对夜辉发射线的多普勒频移和宽度进行测定。在630.0 nm和577.7 nm发射被禁氧线的新的零速度参考源将用于改进热层上下水平和垂直速度的测定。通过这些观测，将推断出每个高度的风场和温度场的气候学，并将研究地区之间的耦合效应。

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.