ABSTRACT
The blockage of solar radiation causes a sudden decrease in electron density in the shadow region of Earth’s ionosphere during the total solar eclipse period. After the eclipse, the ionospheric electron density returns to its normal daytime conditions. Thus, the solar eclipse is a wonderful opportunity to study the ionospheric electron density variation in the absence of solar radiation for a short duration. To better correlate the effects of the eclipse on ionospheric electron density distribution, the eclipse obscuration percentage along each satellite IPP trajectories is derived. Compared to non-eclipse days, clear depletions in the TEC values are observed in all the stations after the eclipse onset. The time lags are attributed to the lifetime of charged particles at various ionospheric layers.
