一种反演中高层大气密度的新方法

A new method of measuring neutral atmospheric density in the upper mesosphere

利用昆明电波观测站(25.6°N,103.8°E)的全天空流星雷达(All-sky Meteor Radar)和ST(Stratosphere-Troposphere)雷达于2014年特殊联合观测试验期间获取的数据,在确定了昆明地区中层顶位于流星峰值高度的情况下,根据温度梯度法得出的温度,使用大气物理压强温度公式,提出一种计算大气密度的新方法.研究发现,流星雷达的峰值高度与反演得到的大气密度走势基本相符,两台雷达得到的大气密度剖面存在很好的一致性.本文提出的方法,可以准确获得昆明地区上空85~94km高度的大气密度,为探测中高层大气相关参数提供了一种新的途径.

We carried out a special observation test using all-sky meteor radar and stratosphere- troposphere radar at Kunming radio station（25.6°N, 103.8°E） in the 2014. According to the temperature obtained by the temperature gradient method, a new method for calculating the atmospheric density is pro- posed by using the atmospheric physical pressure and temperature formula. After we determine the peak height of Kunming meteor radar, the height density profiles of the two radars are in good agreement. By using the proposed method, we obtain the atmospheric density of 85 km to 94 km over the Kunming re- gion. It provides a new way to detect the correlation parameters of the middle upper atmosphere.