Airglow and Auroral Studies of the Earth's Upper Atmosphere

这一拟议的地基光学分析方案， 高层大气区域的建模解决了重要的CEDAR问题 目标. 研究的领域是：1）高层大气 动力学和F区等离子体耦合; 2）630 nm气辉 3）中层和低层 热层动力学; 4）地冠氢动力学; 5） 增强灵敏度法布里-珀罗干涉仪 发展 秘鲁阿雷基帕FPI将同时用于 Jicamarca非相干散射雷达（ISR） 为了详细确定的高度变化的 赤道热层-F区等离子体耦合。 1983年- 1990年FPI数据库将进行分析，以找到响应的 上层热层风和温度对太阳通量变化的影响 (sa指数）和地磁活动（Kp、Ap、AE指数）。 一 映射光度计将确定630 nm的形态 气辉损耗及其与电离层羽流的联系 （由Jicamarca ISR测量）。 在宾夕法尼亚州的月桂岭，150 和100 nm孔径FPI（由CCD探测器改进）将 分别确定地冠氢动力学（捕获 热、弹道和逃逸成分（位于Ha线）， 中层-低热层动力学（通过OH和557.7 nm 线）。 在马萨诸塞州的米尔斯顿山，在D。P. Sipler，中纬度FPI和ISR研究协调员 热层-电离层动量和能量耦合将 继续

This proposed program of ground-based optical analyses and modeling of upper atmospheric regions addresses important CEDAR objectives. The areas of investigation are: 1) upper atmosphere dynamics and coupling to the F-region plasma; 2) 630 nm airglow depletions and ionospheric plumes; 3) mesosphere and lower thermosphere dynamics; 4) geocoronal hydrogen dynamics; and 5) enhanced-sensitivity Fabry-Perot interferometer (FPI) development. The Arequipa, peru FPI will be used in simultaneous measurements with the Jicamarca incoherent scatter radar (ISR) for detailed determinations of the height variation of the equatorial thermosphere - F-region plasma coupling. The 1983- 1990 FPI data base will be analyzed to find the response of the upper thermosphere wind and temperatures to changes in solar flux (sa index) and geomagnetic activity (Kp, Ap, AE indicies). A mapping photometer will determine the morphology of 630 nm airglow depletions and their association with ionospheric plumes (measured by the Jicamarca ISR). AT Laurel Ridge, PA, the 150 and 100 nm aperture FPI's (improved by CCD detectors) will determine, respectively, geocoronal hydrogen dynamics (trapped thermal, ballistic and escape components cia the Ha line) and mesopause-lower thermosphere dynamics (via OH and 557.7 nm lines). At Millstone Hill, MA, under the direction of D. P. Sipler, the coordinator FPI and ISR studies of midlatitude thermosphere -ionosphere momentum and energy coupling will continue.