Observations for aurora and relevant polar upper atmospheric changes at Jang Bogo station, Antarctica

Abstract

We have been collecting aurora images from color-CCD All-Sky Camera (ASC) at Jang Bogo Station (JBS), Antarctica (74° 37’ S, 164 ° 13’ E) since 2018. JBS is located mostly in the boundary between the polar cap and the auroral region and since the establishment in 2014, various observations for the polar upper atmosphere and the magnetosphere have been performed simultaneously together with the auroral observation. In this study, we analyze the 1-year observation for the aurora as well as the polar upper atmosphere and the magnetosphere from the various ground instruments such as ionosonde (VIPIR), Fabry-Perot interferometer (FPI), magnetometers, and ASCs in order to study on the possible changes of the polar upper atmosphere during the occurrence of the aurora over JBS. In this presentation, we will show some preliminary results of this comparative study mainly using the auroral images from ASC and the simultaneous observations for the ionosphere and the thermosphere.