Possibility of simultaneous [O3] and [CO2] altitude distribution retrievals from the daytime emissions of electronically-vibrationally excited molecular oxygen in the mesosphere

Abstract

In this study we have formulated the multi-channel method for retrieval of the O(3P), O3 and CO2 volume mixing ratios, Cv,O(3P),Cv,O3 and Cv,CO2, altitude profiles in the daytime mesosphere and lower thermosphere from the simultaneous measurements of intensities of three emissions formed by transitions from three electronically-vibrationally excited states, O2(b1Σg+, v = 2), O2(b1Σg+, v = 1) and O2(b1Σg+, v = 0). Only using the YM2011 model of kinetics of O3 and O2 photolysis (Yankovsky et al., 2016. J. Molec. Spectr., 327, 209–232) allowed us to consider in detail the complex groups of the processes of excitation and quenching of the states O2(b1Σg+, v = 0, 1, 2), the transitions from which form the system of the O2 Atmospheric bands observed in the dayglow of the Earth. For the altitude range 50–85 km we developed in details the two-channel method of simultaneously retrieval of the volume mixing ratios of O3 and CO2. For this method, we succeeded in obtaining formulas that can be used for remote sensing of the Earth atmosphere from satellites.