ASTRA - Atmospheric & Space Technology Research Associates, LLC

Earth TIME-GCM

Response of the Thermosphere and Ionosphere to the November 2003 Magnetic Storm

ASTRA is combining their expertise in modeling and data analysis to answer the fundamental science question “How does the ionosphere respond to magnetic storms?” Crowley et al. (2006) presented simulations showing how the dayside ionosphere responded to the onset of the November 20, 2003 superstorm. The model revealed that the neutral winds drove the ionospheric plasma to greater altitudes, where O/N2 was larger, leading to enhanced electron densities in the sunlit sector. In a previous paper, we used the TIME-GCM to simulate the entire storm period (Meier et al., 2005). The next step is to use our model post-processors to analyze the storm response further.