Analysis and analytical modeling of Air shifting coefficients of water vapor lines in the visible range
Starikov V. I.1
1Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
Email: vstarikov@yandex.ru
An analytical model δ(sur) is proposed for calculations of air shift coefficients of water vapor lines in the visible range. The model δ(sur) depends on the fitting parameters and linearly depends on the line broadening coefficient. Two sets of 642 and 3241 experimental values of δ were identified, obtained for lines from the ranges 10150-14000 cm-1 and 10150-22637 cm-1. The average accuracy of the coefficients by using the δ(sur) model is 16.9 and 22.9% for the first and second sets, respectively. Calculations based on δ(sur) model are compared with calculations based on the semiclassical method and with the HITRAN database. Keywords: water vapor, shifts, air, analytical representation.
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