The detection the minor gaseous constituents and the determination of their concentration is important in the study of the Earth's environment. These components can play a substantial role in the atmospheric processes leading even to breaking down the ecological equilibrium. Mid- and long- term observations form ground and from space are necessary to monitor sudden changes and to investigate the long-term trends in the composition of the atmosphere. We propose here a space-ground correlative experiment which gives new possibilities. Simulation of solar absorption spectra of the trace gases in the Earth's atmosphere in 2-16 micrometers spectral range for both types of measurements are presented.