Vol. 12, issue 10, article # 9

pdf Bykov A. D., Lavrentieva N. N., Sinitsa L. N. The H2O line shifts induced by nitrogen, oxygen, and air pressure within the impact theory by Anderson. // Atmospheric and oceanic optics. 1999. V. 12. No. 10. P. 919-927.
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Abstract:

The water vapor line shift coefficients were calculated and the analysis of main factors, affecting the value and sign of a shift was performed, using the Anderson impact theory. The vibrational and rotational dependences and the role of different terms of intramolecular potential was analyzed. It was shown that the compensation for different scattering channel contributions defines the variation of the shift coefficients with the increasing quantum number. In the calculations one fitted parameter, the mean dipole polarizability of the upper vibrational state, has been used. Calculations are in a satisfactory agreement with the experimental data.