Measurements of the stratospheric Density and Temperature Profiles in Hanoi by a Rayleigh Lidar


  • Nguyen Xuan Tuan Institute of Physics Vietnam Academy of Science and Technology
  • Dinh Van Trung Institute of Physics, Vietnam Academy of Science and Technology
  • Nguyen Thanh Binh Institute of Physics, Vietnam Academy of Science and Technology
  • Bui Van Hai Le Quy Don Technical University



stratosphere, Rayleigh lidar, number density profile, temperature profile


The molecular density and temperature profiles of the stratosphere in Hanoi are measured by a Rayleigh lidar. The profiles have the spatial resolution of 120 m and the temporal resolution of 1h. Their bottom height and top height are 20 km and 57 km, respectively. 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 \(\pm 0.9\)\% and \(\pm 3.4\)~K, respectively.The position and the temperature  of the stratopause in Hanoi are determined to be about 49 km and 270 K. Database of lidar in a long time might reveal the characteristic and the structure of the stratosphere in Hanoi, Vietnam.


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How to Cite

Tuan, N. X., Trung, D. V., Binh, N. T., & Hai, B. V. (2014). Measurements of the stratospheric Density and Temperature Profiles in Hanoi by a Rayleigh Lidar. Communications in Physics, 24(3), 247.




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