陈步鹏,冯健,尹文杰,等. 基于漠河与武汉站流星雷达的中间层顶大气温度反演[J]. 电波科学学报,2024,39(2):1-7. DOI: 10.12265/j.cjors.2023139
      引用本文: 陈步鹏,冯健,尹文杰,等. 基于漠河与武汉站流星雷达的中间层顶大气温度反演[J]. 电波科学学报,2024,39(2):1-7. DOI: 10.12265/j.cjors.2023139
      CHEN B P, FENG J, YIN W J, et al. Atmospheric temperature inversion at mesopause based on meteor radar of Mohe and Wuhan stations[J]. Chinese journal of radio science,2024,39(2):1-7. (in Chinese). DOI: 10.12265/j.cjors.2023139
      Citation: CHEN B P, FENG J, YIN W J, et al. Atmospheric temperature inversion at mesopause based on meteor radar of Mohe and Wuhan stations[J]. Chinese journal of radio science,2024,39(2):1-7. (in Chinese). DOI: 10.12265/j.cjors.2023139

      基于漠河与武汉站流星雷达的中间层顶大气温度反演

      Atmospheric temperature inversion at mesopause based on meteor radar of Mohe and Wuhan stations

      • 摘要: 本文利用漠河和武汉站的全天空流星雷达在2012—2022年期间的观测数据,基于流星高度分布的半高宽(full width at half maximum, FWHM)与温度之间的线性关系来反演90 km高度处的大气温度。对每年数据作线性拟合时发现拟合参数几乎不变,因此本文使用过去一段时间总结出的参数来拟合温度,并与传统梯度法对比。结果表明,使用FWHM法测出的温度与Aura卫星的温度更为接近,其中相关系数和平均误差均优于梯度法,并且FWHM法在较高纬度的漠河站的拟合效果好于较低纬度的武汉站。说明在漠河站和武汉站使用FWHM法反演中间层顶大气温度是可行的;同时也证明了纬度会影响FWHM法的误差,在较高纬度使用FWHM法的结果误差更小。

         

        Abstract: This paper uses the data of the all-sky meteor radar in Mohe and Wuhan stations from 2012 to 2022 to estimate the atmospheric temperature at 90 km based on the linear relationship between the full width at half maximum (FWHM) of the meteor height distribution and the temperature. Since the fitting parameters were found to be almost constant when linearly fitting the data from year to year, this paper uses the parameters summarized over time to fit the temperature and compares it with the conventional gradient method. The results show that the temperature measured by the FWHM method is closer to that of the Aura satellite, where the correlation coefficient and the mean error are better than those of the gradient method. Moreover, the FWHM method fits better at the higher latitudes Mohe station than the lower latitudes Wuhan station. All in all, it is feasible to use the FWHM method to estimate the atmospheric temperature at mesopause at Mohe and Wuhan stations. Besides, this paper verifies that latitude can affect the error of the FWHM method, where the error of the FWHM method is smaller at higher latitude.

         

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