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Communication Dans Un Congrès Année : 2018

All-fibered coherent-differential absorption lidar at 1.645 μm for simultaneous methane and wind-speed measurements

Résumé

Here we report on the development of a new coherent-DIAL system as well as first quantitative measurements of simultaneous gas mixing ratio and radial wind-speed with the instrument. Integrated measurement of atmospheric methane (CH4) mixing ratio between the instrument and a hard-target located at 2:25 km has been conducted with a relative precision of nearly 20% in 17 s. The measurement procedure also gives information on integrated water vapor (H2O) mixing ratio.
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Dates et versions

hal-02193304 , version 1 (24-07-2019)

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Simon Le Méhauté, Philippe Benoit, Nicolas Cézard, Didier Goular, Christophe Planchat, et al.. All-fibered coherent-differential absorption lidar at 1.645 μm for simultaneous methane and wind-speed measurements. SPIE Remote Sensing, Sep 2018, BERLIN, Germany. ⟨10.1117/12.2325554⟩. ⟨hal-02193304⟩
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