A Study on the Statistical Analysis of the Geomagnetic Storm of January 2021 and its Effect on the Ionosphere.

Abstract

The twenty fifth solar cycle is in progress and is it expected in peak in 2025. More and more geomagnetic storms will be expected in the coming period. During a geomagnetic storm event a lot of energy is deposited in the magnetosphere and eventually in the ionosphere. In this paper we present the results of a minor geomagnetic storm that occurred on January 25, 2021. The solar wind data and geomagnetic data for the storm are studied. Significant changes in the solar and geomagnetic parameters were observed in association with the storm. All the parameters are statistically analysed to extract the storm time behaviour and also study the process of ionospheric magnetosphere coupling during the storm. For this we have selected taken the average of ten quiet days and statistical comparison with the disturbed days has been done.