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LIDAR mapping of ozone-episode dynamics in Paris and intercomparaison with spot analysers

Abstract : Continuous mapping of an ozone episode in Paris in June 1999 has been performed using a differential absorption lidar system. The 2D ozone concentration vertical maps recorded over 33 h at the Champ de Mars are compiled in a video clip that gives access to local photochemical dynamics with unprecedented precision. The lidar data are compared over the whole period with point monitors located at 0-, 50- and 300-m altitudes on the Eiffel Tower. Very good agreement is found when spatial resolution, acquisition time, and required concentration accuracy are optimized. Sensitivity to these parameters for successful intercomparison in urban areas is discussed.
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Alexandre Thomasson, Sylvain Geffroy, Emeric Frejafon, Derk Weidauer, R. Fabian, et al.. LIDAR mapping of ozone-episode dynamics in Paris and intercomparaison with spot analysers. Applied Physics B - Laser and Optics, Springer Verlag, 2002, 74 (4-5), pp.453-459. ⟨10.1007/s003400200826⟩. ⟨ineris-00961856⟩

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