The generalized k-moment method for the modeling of cumulative k-distributions of H2O at high temperature

Abstract In the present work, a new formulation, limited to a few number of parameters, of cumulative k -distributions over narrow bands from high resolution spectra is presented. The method is described and assessed through comparisons with reference Line-By-Line (LBL) data for pure H 2 O, in terms of transmission spectra and cumulative k -distributions. Results demonstrate that the proposed approach is very accurate and therefore is likely to provide reliable approximate models for the cumulative k -distribution and the narrow band transmission functions in uniform media.