Preliminary Results from Mesospheric Temperature Mapper (MTM) Observation at King Sejong Station, Antarctica

In the MLT (Mesosphere and Lower Thermosphere) region, the variations of airglow intensity and atmospheric temperature with time and season are important factors to understand the effect of atmospheric gravity waves on this region of the upper atmosphere. Recently (January 2023), KOPRI (Korea Polar Research Institute) has installed an MTM (Mesospheric Temperature Mapper) instrument at King Sejong Station (62S, 58W), Antarctica to monitor the mesospheric temperature during winter season. MTM instrument provides not only the OH airglow intensities at around 87km altitude but also two-dimensional temperature with very high temporal resolution (~ every 30s). In this study, we present the preliminary results of the observation and the comparisons between the temperatures from MTM and those from Meteor Radar which has been simultaneously operating at KSS and MLS (Microwave Limb Sounder) onboard Aura satellite.