OPTICAL AND SATELLITE OBSERVATION OF ACOUSTIC-GRAVITY WAVES IN THE MESOSPHERE DURING SEISMO ACTIVITY

Abstract

Fullfilled researches of the behavior of acoustic-gravity waves (AGW) on the heights of the mesosphere during periods of seismic activity. The observations of acoustic-gravity waves(AGW) were conducted for 5 years from 2010 to 2015 using a SATI(Spectral Airglow Tem- perature Imager) spectrometer. The features of the AGW spectrum in times of seismic activity have detected. In times of seismic activity we have detected amplification of AGW with typical periods of about 25 minutes. All of them correspond propagation velocity equal to about 1000 m / c. More- over, there is an increase of the AGW with increasing seismic activity. Results of optical ground- based observations were compared with data of satellite optical observations MLS (Microwave Limb Sounder).

Keywords: acoustic-gravity waves, mesosphere, infrared glow of the sky.