The paper discusses the results of the closed numerical experiment on laser sensing of the concentration of water vapor and trace gases in the tropospheric layer of the atmosphere based on a new hybrid technology LIDAR-DOAS, which uses the atmospheric aerosol as the distributed route reflector. Quantitative estimations, made on a basis of the Monte-Carlo method, confirm the perspectives of such an approach extending the capabilities of the classical scheme of differential optical atmospheric spectroscopy (DOAS) in the form of remote control and localization of dangerous anthropogenic emissions of toxic gases up to the tropopause altitude. Because of the need for estimating the lidar returns with high spectral resolution based on the transient transfer equation, a considerable modification of statistical modeling algorithms was required. In the paper a new method of local estimating of the flux was used, taking into account the selective absorption of gaseous atmosphere. A combination of this method with the genetic algorithm of the solution of inverse problem of profile reconstruction of the required gas tropospheric components provides the means for rigid quantitative prediction of the efficiency of developed lidar systems of the environmental monitoring.
lidar sensing; wide-band radiation; genetic algorithm