The Meteorological Parameters Analysis in Shenzhen Astronomical Observatory During the Partial Solar Eclipse

On June 21, 2020, an annular eclipse happened in China and the path went through Tibet, Sichuan, Chongqing, Hunan, Jiangxi, Fujian and Taiwan, partial solar eclipse could be observed in other areas. The solar telescope in Shenzhen Astronomical Observatory observed the whole process of the partial solar eclipse. At the same time, the meteorological equipment settled in the observatory obtained solar radiation, temperature, relative humidity, air pressure and other meteorological elements. The analysis of the observational data during the eclipse shows that:(1) solar radiation, temperature and air pressure declined and then ascended slowly from the first contact to maximum of eclipse. Because of the weather, the minimum time lagged behind to the time of eclipse maximum. The time of solar radiation lagged behind by 1.37 minutes, temperature lagged behind by 6.37 minutes and air pressure lagged behind by 10.37 minutes. (2) From the first contact to maximum of eclipse, the relative humidity ascended to the maximum value, lasted for 33 minutes, and then decreased. The maximum time lagged behind the time of eclipse maximum by 6.37 minutes. (3) Comparing the variation of meteorological parameters in the days before and after the solar eclipse, the rate of variation of solar radiation, temperature and relative humidity during the solar eclipse was about one order of magnitude higher than that without the solar eclipse. The variation of air pressure with/without solar eclipse was nearly same. (4) During the solar eclipse, the correlation between the relative intensity of the solar disk and meteorological parameters was strong, with the pearson correlation coefficient are 0.95, 0.89, -0.82 and 0.75, respectively.