Measurements of the stratospheric density and temperature profiles in HaNoi by a rayleigh lidar

The atmospheric molecule density profile is directly derived from the correction-range lidar signal. The temperature profile is deduced from the molecular density profile based on the assumptions of the hydrostatic equilibrium and the ideal-gas law. Lidar measurements show good agreement with the molecular density and the temperature profiles from the MSISE-90 atmospheric model. Maximum errors of the density and temperature are found to be ±0.9% and ±3.4 K, respectively. The position and the temperature of the stratopause in Hanoi are determined to be about 49 km and 270 K.