Iron Boltzman Temperature Lidar for Studies of Middle Atmosphere Global Change

PIS将开发一种使用宽带可调谐固体激光器和中间层铁作为荧光示踪剂的新型中大气温度激光雷达。该系统将坚固可靠，能够进行昼夜观测，并能够部署在偏远地点或从研究飞机上操作。建成后，该系统将表征中间大气的热结构，以研究中层顶区的铁和钙，并研究潮汐和行星波的影响。这些观测将大大改善对中层大气温度的有限了解，量化自然变率，提供对中层大气环流模式的关键测试，并显著加强对该地区大尺度波浪和潮汐的了解。最后，计划中的北极温度观测将是首次对极高纬度的中层顶区进行观测。

The PIs will develop a novel middle atmosphere temperature lidar that uses broadband tunable solid-state lasers and mesospheric iron as the fluorescence tracer. This system will be rugged and reliable, capable of making observations day and night, and capable of being deployed at remote sites or operated from research aircraft. After its construction, the system will characterize the thermal structure of the middle atmosphere to study iron and calcium in the mesopause region, and study the influence of tides and planetary waves. These observations will substantially improve the limited knowledge of middle atmosphere temperatures, quantify the natural variability, provide crucial tests of middle atmosphere circulation models, and significantly enhance understanding of large scale waves and tides in this region. Finally, the Arctic temperature observations planned will be the first made of the mesopause region at extreme high latitudes.