The Effect of the Change of Solar-activity to Meteorological Phenomena

[摘要] Tidal oscillations on the sun due to planets were calculated, and the following periods were obtained. Such periodicities were detected in the change of solar activity as well as in some meteorological elements on the earth. It must be noticed, however, that the phase angles of the periodicities change regularly due to the 11 years cycle of the sunspot number.Such periodic changes in the meteorological elements were correlated with those in the solar activity and the effects of the change of solar activity to meteorological phenomena were confirmed though the physical process of the effects was not yet clear. Of course, the amplitudes of such oscillations are very small, being estimated to be of the order of 10-4 times the absolute values. Therefore, they are insignificant in daily change of meteorological phenomena but can not be neglected for changes of long periods.Such oscillation on the earth is modified by the general circulation of the atmosphere. The periodicities produced by the coupling between the solar effects and the annual change of the general circulation were calculated for a simple model. Some of the periodicities obtained by such calculations were detected in certain meteorological elements.

[学科分类] 大气科学