Abstract
In this report, infrared radiative excitation of the asymmetric stretch (v3 mode) vibrationally excited states of CO2 in the non-LTE region of the quiescent atmosphere is considered using a line-by-line (LBL) radiative transfer model1. A set of codes known collectively as Atmospheric Radiance Code (ARC) is used to calculate (1) the vibrational populations of states that emit at 4.3 μm, and (2) the resulting earthlimb radiance. The model calculations are then compared to earthlimb radiance data from the Spectral Infrared Rocket Experiment, or SPIRE2. The approach has previously been used to model CO2 15 μm emission3.
© 1993 Optical Society of America
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