The Feature of Ionospheric Mid-Latitude Trough during Geomagnetic Storms Derived from GPS Total Electron Content (TEC) Data
This study aims to investigate the features of the ionospheric mid-latitude trough over North America by using the MIT total electron content data obtained during three geomagnetic storms that vibrating table for chocolate occurred in August 2018, September 2017, and March 2015.The mid-latitude trough position sharply moves equatorward from the qui