Lin wins at Geospace Environment Modeling Workshop
Joseph Park, ECE ILLINOIS
7/24/2018 2:42:08 PM
Held in Santa Fe, New Mexico, The Geospace Environment Modeling (GEM) Workshop is an NSF Division of Atmospheric Sciences initiative to "coordinate and focus research on the near-earth portion of geospace from the lower ionosphere to where the earth system interacts with the solar wind." The GEM program aims to support research in dynamical and structural properties of geospace for the construction of a global geospace general circulation model (GGCM) with predictive capability.
Their simulation results showed that the nitrogen ions are lost at different rates than the energetic oxygen ions due to the difference in the cross section of the charge exchange collision of nitrogen and oxygen ions with neutral geocoronal hydrogen at higher particle energies. The team's findings indicated that the presence of nitrogen ions in the ring current can impact the magnetospheric processes, leading to a faster recovery phase of a geomagnetic storm.