Observation of OH (6-2) Meinel and O2 (0-1) atmospheric airglow emissions with Spectral Airglow Temperature Imager in King Sejong Station (62.22˚S 58.75˚W), Antarctica

Abstract

The airglow emissions represent the physical feature at the atmospheric layer where the peak emission occurs. A Spectral Airglow Temperature Imager (SATI), a ground based spectral scanning and spectral imaging Fabry-Perot spectrometer, is designed for investigation of mesopause temperature by observing the OH (6-2) Meinel and O2 (0-1) atmospheric airglow emissions which originate at an altitude of about 87 km and 94 km, respectively. Since the installation of a SATI at King Sejong Station (KSS) in 2002, it has been continually produced significant data until 2016. The rotational temperature is derived from emission rate of airglow emissions. We describe the data set obtained for over a decade by SATI and provide a modification of the existing data analysis method. The temperature and emission rate derived from the method are compared with result obtained from satellite data (AURA/MLS, SABER/TIMED). Night and seasonal variation in both airglow emissions quite agrees with the trend in temperatures obtained by satellite data nearby KSS.