Analysis of EUV and Visible Region Airglow and Auroral Data

对气辉和极光光学发射测量的详细分析需要复杂的计算机模型，包括电子碰撞能量损失/激发过程、光化学以及大气中光学厚度极紫外共振线的辐射传输。由于建模工作的复杂性，之前只有一个团队(NRL的R.R.Meier和同事)对日光和极光的紫外线光谱进行了全面的建模。除了与Meier博士合作分析加州大学伯克利分校SRP78-1 EUV数据外，我们现在还在进行或自己的EUV理论研究和分析，包括EUV和可见光区域气辉和极光。气辉和极光激发和发射过程的定量研究对于阐明磁层-电离层-大气耦合系统的光化学和能量学具有重要意义。白天电离层的形成和维持是通过吸收波长低于1025&gt；的太阳EUV辐射来实现的。在极光区，地磁暴可能对中性大气和电离层结构产生深远影响，通过沉淀高能电子而沉积在大气中的大部分能量以光学发射的形式释放。因此，大气辐射光谱是了解和监测全球陆地环境的重要诊断工具。

The detailed analysis of airglow and auroral optical emission measurements requires sophisticated computer models of electron impact energy loss/excitation processes, photochemistry, and radiative transfer of optically thick EUV resonance lines in the atmosphere. Due to the complexity of the modeling effort, only one group (R.R. Meier and colleagues at NRL) has previously been engaged in comprehensive modeling of the UV spectrum of the dayglow and aurora. In addition to collaborating with Dr. Meier in the analysis of U.C. Berkeley SRP78-1 EUV data, we are now conducting or own theoretical investigations and analyses of both EUV and visible region airglow and aurora. The quantitative investigation of airglow and auroral excitation and emission processes plays a significant role in the elucidation of the photochemistry and energetics of the coupled magnetosphere-ionosphere-atmosphere system. The daytime ionosphere is formed and maintained through the absorption of solar EUV radiation at wavelengths below 1025 >. In the auroral zones, where geomagnetic storms may have a profound influence on neutral atmospheric and ionospheric structure, much of the energy deposited in the atmosphere by precipitating energetic electrons is released in the form of optical emissions. Thus, the spectroscopy of atmospheric emissions serves as an important diagnostic tool in understanding and monitoring the global terrestrial environment.