Investigation of Ionospheric Storms Occurred over Turkey during a Geomagnetic Storm

Abstract

In this study, the observed ionospheric storms over Turkey during severe geomagnetic storm occurred in 27 to 28 May 2017 was investigated by using six stations in the TUSAGA-Active GPS network. Dst and Kp indices were used to determine the state of the geomagnetic storm, while ionospheric storms were investigated by means of total electron content. The analysis shows that the negative ionospheric storms have been shown to occur during initial and main phase of this storm. However, a positive ionospheric storm occurred during the return phase of the storm. According to statistical analysis, it can be stated that ionospheric storms weaken as they move from west to east and from south to north.

Keywords: Geomagnetic storms, Ionospheric storm, TUSAGA-Active, TEC

DOI: 10.7176/JSTR/5-12-33