 This research examined the impact of geomagnetic storms on the atmospheric density of the thermosphere using data collected by the Swarm-C satellite. It found that storms had a greater effect on the nighttime atmosphere compared to the daytime atmosphere, with the greatest impact occurring shortly after the storm. Additionally, the spatial distribution of the atmosphere was more sensitive to storms at night, while the temporal distribution was more sensitive during the day. This article was authored by Li Rongyin, Lei Wang, Li Jungu, and others.