RAYLEIGH LIDAR AND RADIOSOND OBSERVATIONS OF DENSITY AND TEMPERATURE IN MIDDLE ATMOSPHERE OVER WUHAN

Vertical distributions of atmosphereic density and temperature over Wuhan (30.5N, 114.4E) from ground to 65km have been obtained by Rayleigh Scattering Lidar with high temporal and special resolution and radiosondes. A method to derive the density and temperature from the photon counts collected by lidar is described briefly. The density and temperature profiles agree very well with MSISE-90 atmosphere model and the temperature difference between the derived profiles and model were less than 3 K near the stratospause. The errors involved in the derived values are presented and analyzed. Preliminary analysis of temperature variations in a night revealed fluctuations with characteristics resembling those large-scale gravity waves.