The Measurement of Tropospheric Temperature Profiles using Rayleigh-Brillouin Scattering: Results from Laboratory and Atmospheric Studies

Benjamin Witschas, Oliver Reitebuch, Christian Lemmerz, Pau Gomez Kableka, Sergey Kondratyev, Z. Gu, Wim Ubachs

Research output: Contribution to JournalArticleAcademicpeer-review

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.

Original languageEnglish
Article number27004
JournalEPJ Web of Conferences
Volume119
DOIs
Publication statusPublished - 7 Jun 2016

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