Abstract
Two statistical equilibrium models are compared to analyze the departure from local thermodynamic equilibrium (LTE) in the vibration‐rotation bands of ozone in the middle atmosphere. The bands that emit in the 9–11 μm spectral interval depart from LTE due to chemical pumping, spontaneous emission, radiative absorption, and photochemical reaction. The diurnal variation in the ν1 and ν3 fundamental band source functions is determined by the diurnal changes in the rate of photolysis of ozone by solar radiation. The hot band source functions (υ > 2) are invariant above 85 km due to the diurnal invariance in the chemical pumping process. The magnitude of the hot‐band source functions is uncertain because of the lack of understanding of the chemical pumping process. Collisional quenching of vibrationally excited ozone by atomic oxygen may reduce the magnitude of the ν3 and ν1 fundamental source functions by 10% near 100 km.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
