关键词: 低能电子,电离层,磁中午,中山站,南极

Abstract:

In this paper,the effects of low energy electron precipitation on the ionosphere over Zhongshan Station have been investigated. The characteristic energy and the energy flux of the electron over the Zhongshan Station have evident high latitude characteristics. The ionization rates due to the precipitation of the electrons with various energies are calculated. It can be seen from the results that the low energy electrons are absorbed mainly in the F region. But the high energy electrons can reach the E region. This will result in the occurrence of the particle E layer. Finally, we use “soft zone” electron spectrum to calculate the ionization rate due to the low energy electron precipitation and use the ionization rate to estimate the increase in electron density. The results show that the low energy electron precipitation not only has the great effects on the F region electron density but is one of the reasons to cause the increase in the height of peak.