昆明站流星雷达数据集

      A dataset from Kunming meteor radar

      • 摘要: 全天空流星雷达使用相位法和多普勒频移原理测量流星余迹参数,获取70~110 km高度的大气风场、密度和温度信息。中国电波传播研究所云南昆明电磁波环境国家野外科学观测研究站(25.6°N,103.7°E)全天空流星雷达数据集包含MET和VEL两种类型的数据,分别记录流星余迹信息和大气风场信息。流星余迹数据包含流星余迹的距离、到达角、径向速度、衰减时间和扩散系数等,可以进一步用来反演90 km附近大气温度参数。基于全天空流星雷达数据集可以分析昆明站上空中间层、低热层区域大气风场的时空变化特性,研究大气波动及其在不同大气层之间的耦合作用,支撑临近空间大气环境模型与预报技术研究,服务临近空间飞行器环境保障。

         

        Abstract: The all-sky meteor radar uses the phase method and the Doppler shift principle to measure meteor trails parameters, and obtain atmospheric wind field, density and temperature at altitudes of 70-110 km. The all-sky meteor radar dataset of Kunming Electromagnetic Environment National Observation and Research Station of China Research Institute of Radiowave Propagation (25.6°N, 103.7°E) includes two formats of data: MET and VEL, which record meteor trails information and atmospheric wind field information, respectively. The meteor trails data includes the distance, angle of arrival, radial velocity, decay time, and diffusion coefficient of the meteor trails, which can be further used to invert atmospheric temperature parameter near 90 km altitude. The all-sky meteor radar dataset can be used for analyzing the temporal and spatial characteristics of atmospheric wind fields in the mesosphere and lower thermosphere regions over Kunming station, studying the atmospheric waves and their coupling roles between different atmosphere layers, supporting the research on near-space atmospheric environment modelling and forecasting technology, and serving the environmental supports of near-space vehicles.

         

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