Simple atmospheric transmittance calculation based on a Fourier-transformed Voigt profile.
A method of line-by-line transmission calculation for a homogeneous atmospheric layer that uses the Fourier-transformed Voigt profile is presented. The method is based on a pure Voigt function with no approximation and an interference term that takes into account the line-mixing effect. One can use the method to calculate transmittance, considering each line shape as it is affected by temperature and pressure, with a line database with an arbitrary wave-number range and resolution. To show that the method is feasible for practical model development, we compared the calculated transmittance with that obtained with a conventional model, and good consistency was observed.
Kobayashi
Hirokazu
H
Central Research Institute of Electric Power Industry, 2-11-1 Iwato Kita, Komae-shi, Tokyo, Japan. koba@criepi.denken.or.jp