Synchronous lidar observations of the spatiotemporal structure of atmospheric aerosol in the coastal zone of Lake Baikal
S.V. Nasonov, Yu.S. Balin, M.G. Klemasheva, G.P. Kokhanenko, A.S. Nasonova, M.M. Novoselov, I.E. Penner
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: Lake Baikal, aerosol, lidar, cross-correlation function, meteorological parameters
Abstract
The results of synchronous lidar observations of the transfer of atmospheric aerosol fields over Lake Baikal during the summer expedition of 2018 are presented. The experiment was carried out using two lidars, one of which was located on a ship, and the second, at a distance of 732 m at a stationary station. Based on the correlation analysis of the lidar data, the transfer time of atmospheric aerosol heterogeneities between observation points at different altitudes above the mountain basin is estimated. It is found that the transfer time is 5 min 20 s for the altitude range 100-350 m, 7 min 12 s for 1250-1500 m, 5 min 20 s for 2100-2500 m, and 6 min 24 s for the range 4200-4300 m. Such uneven altitude distribution of the transfer time of aerosol objects is due to the complex air flow circulation in the mountain basin.
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