1. The Measurement of Tropospheric Temperature Profiles using Rayleigh-Brillouin Scattering
- Author
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Christian Lemmerz, Benjamin Witschas, Pau Gomez Kableka, Oliver Reitebuch, Ziyu Gu, Wim Ubachs, Sergey Kondratyev, Atoms, Molecules, Lasers, and LaserLaB - Physics of Light
- Subjects
Materials science ,QC1-999 ,02 engineering and technology ,Atmospheric sciences ,01 natural sciences ,Temperature measurement ,Spectral line ,law.invention ,010309 optics ,symbols.namesake ,law ,Brillouin scattering ,Rayleigh-Brillouin scattering ,0103 physical sciences ,Spectral resolution ,Rayleigh scattering ,Lidar ,Scattering ,Physics ,temperature lidar ,021001 nanoscience & nanotechnology ,Computational physics ,Radiosonde ,symbols ,0210 nano-technology ,HSRL - Abstract
In this letter, we suggest a new method for measuring tropospheric temperature profiles using Rayleigh-Brillouin (RB) scattering. We report on laboratory RB scattering measurements in air, demonstrating that temperature can be retrieved from RB spectra with an absolute accuracy of better than 2 K. In addition, we show temperature profiles from 2 km to 15.3 km derived from RB spectra, measured with a high spectral resolution lidar during daytime. A comparison with radiosonde temperature measurements shows reasonable agreement. In cloud-free conditions, the temperature difference reaches up to 5 K within the boundary layer, and is smaller than 2.5 K above. The statistical error of the derived temperatures is between 0.15 K and 1.5 K.
- Published
- 2016
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