LIDAR OBSERVATIONS OF THE TEMPERATURE PROFILE BETWEEN 25 AND 103 KM -EVIDENCE OF STRONG TIDAL PERTURBATION

Simultaneous observations of the middle atmosphere and lower thermosph ere by Na Wind/Temperature (W/T) and Rayleigh/Raman lidar and other gr ound-based measurements were conducted the night of October 21, during the ALOHA-93 campaign. Rayleigh/Raman lidar measurements provide dens ity from 25 to 90 km and temperature from 25 to 85 km. From the same l ocation, Na W/T lidar measurements were also obtained between similar to 83 and 103 km. The combined data provides continuous temperature fr om 25 to 103 km. Strong perturbations which may be associated with the diurnal tide are observed in the temperature and wind profiles.