Estimation of nitrogen and oxygen shift coefficients of water vapor in the visible region
V.I. Starikov
Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
Keywords: water vapor, nitrogen, oxygen, shifting coefficient, analytical modeling, visible range
Abstract
An analytical model δ(sur) is suggested for nitrogen and oxygen shift coefficients of water vapor in the visible region. The model δ(sur) linearly depends on the broadening coefficient of a given line and fitted parameters. The analysis of the available experimental data on d coefficients for the near infrared and visible regions is performed. The model δ(sur) retrieves 486 nitrogen shift coefficients for lines from the range 13550-22590 cm-1 with a mean square deviation of 6.0 × 10-3 cm-1/atm and oxygen shift coefficient for lines from the range 13550-14000 cm-1 with a mean square deviation of 2.5 × 10-3 cm-1/atm.
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