High spectral resolution lidar using spherical Fabry-Perot to measure aerosol and atmospheric molecular density

Yann Caraty (1) , Alain Hauchecorne (1) , Philippe Keckhut (1) , Jean-François Mariscal (2) , Eric d'Almeida (2)

1 STRATO - LATMOS
2 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

In theory, the HSRL method should expand the domain of validity of the atmospheric molecular density and temperature profiles of the Rayleigh LIDAR. This, in the UTLS under 30 km with the accuracy of 1 K, while suppressing the particulate contribution. We tested a Spherical Fabry-Perot which achieves these performances while keeping a big flexibility in optical alignment. Performances and limitations of this device will be shown.

Domains: Atmospheric and Oceanic Physics [physics.ao-ph]

Yann Caraty, Alain Hauchecorne, Philippe Keckhut, Jean-François Mariscal, Eric d'Almeida. High spectral resolution lidar using spherical Fabry-Perot to measure aerosol and atmospheric molecular density. EPJ Web of Conferences, 2018, (The 28th International Laser Radar Conference (ILRC 28), Bucharest 2017), 176, art. 01016 (4 p.). ⟨10.1051/epjconf/201817601016⟩. ⟨insu-01569587⟩