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Analysis of lidar systems for profiling aurorally excited molecular species

机译:激光雷达系统分析极光激发的分子种类

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We report a detailed analysis of lidar systems that profile aurorally excited molecular species in the upper mesosphere and lower thermosphere (similar to 80-300 km). Current profiling of this region is performed with incoherent scatter radars that determine the total electron and ion concentrations but not the individual species. Studies of the aeronomy of the thermosphere requires knowledge of the species present and their relative populations in the different vibrational and rotational states. We review the spectroscopy of nitrogen to determine an optimized Lidar system. We combine these results with current auroral observations and models to determine the performance of an actual lidar system. The study shows that such systems can provide high-resolution (1 km, 100 s) measurements of these species with current laser technology. (C) 1997 Optical Society of America.
机译:我们报告了激光雷达系统的详细分析,该激光雷达系统对上层中层和下层热层(类似于80-300公里)中的极光激发分子物种进行了剖析。使用非相干散射雷达执行该区域的当前配置文件,该雷达确定总电子和离子浓度,但不能确定单个物质。对热层空气动力学的研究需要了解存在的物种及其在不同振动和旋转状态下的相对种群。我们回顾了氮的光谱,以确定优化的激光雷达系统。我们将这些结果与当前的极光观测和模型结合起来,以确定实际激光雷达系统的性能。研究表明,使用当前的激光技术,此类系统可以提供这些物种的高分辨率(1 km,100 s)测量结果。 (C)1997年美国眼镜学会。

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