[PEM15-P04] Observation and modeling of Na layer response to energetic particle precipitation
Keywords:Na layer, Energetic particle precipitation, Syowa Station, Na chemistry model
In this study, we have performed a statistical investigation on relationship between Na density and cosmic noise absorption (CNA), which were obtained from 2000 to 2002 at Syowa Station, Antarctic (69.0ºS, 39.6ºE). From the investigation, we found the Na density decrease in accordance with the CNA increase, i.e., increase in the energetic particle precipitation. In the presentation, we will show these observational results, and discuss causality about the observed relationship based on numerical caculations using our Na chemistry model.