From Event: SPIE Remote Sensing, 2018
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.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Simon Le Méhauté, Philippe Benoit, Nicolas Cézard, Didier Goular, Christophe Planchat, Matthieu Valla, Agnès Dolfi-Bouteyre, Xavier Watremez, and Hervé Delbarre, "All-fibered coherent-differential absorption lidar at 1.645 µm for simultaneous methane and wind speed measurements," Proc. SPIE 10791, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing XIV, 1079103 (Presented at SPIE Remote Sensing: September 11, 2018; Published: 9 October 2018); https://doi.org/10.1117/12.2325554.