Effects of the Solar Eclipse of August 1, 2008; on the Earth's Lower Atmosphere

摘要

The paper presents results of optical observations and analysis of dynamics of effects on the earth's lower atmosphere of the partial solar eclipse (of magnitude 42%) of August 1, 2008, near Kharkov. This is compared with the effects induced by the partial solar eclipses on August 11, 1999,and October 3, 2005. An three eclipses occurred around midday. The standard deviation of the solarlimb displacement as during the eclipses on October 3, 2005, August 1, 2008, and August 11, 1999, was established to decrease by 0.13, 0.30, and 0.68" at the maximum of the solar obscuration function 0.13, 0.31, and 0.73, respectively, so that the temperature drop in the earth's lower atmosphere was ta 1.3, 2.0, and 7.3 K. The time lags of decreases of σ_s and t_owas found to be 15 and 5 minutes.