Simulation and analysis of radiant intensity for critical

Abstract

Atmospheric oxygen A-band (759-767nm) airglow has strong radiation intensity in the visible band, and the global atmospheric temperature field can be obtained based on the oxygen A-spectrum line. In order to realize the marginal observation of oxygen A-airglow, the intensity distribution and change at different heights need to be simulated. Firstly, the body emissivity at different heights and solar zenith angles is obtained based on the photochemical model of oxygen A-band airglow. Secondly, the oxygen airglow radiation transmission process is established based on the observation geometry of the edge. Then, the airglow radiation intensity is simulated based on the detection geometry path of the edge to obtain the airglow spectrum lines at different observation heights of the edge.