A numerical procedure for computation of outgoing terrestrial flux based upon the Elsasser-Culbertson model with tests applied to model-atmosphere soundings
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A numerical procedure for the computation of emergent terrestrial flux has been developed after the model described by Elsasser and Culbertson. By application of this procedure, a set of cmergent fluxes has been computed for each of 63 soundings drawn from thc model atmosphercs devclopcd by Wark et al. The latter authors have also made available for this study th? results of thcir radiative model for outgoing intensities. Both radiative models included contributions from atmosphcric water vapor, carbon dioxidc, and ozone, as well as transmitted interfact, (cloud or ground) cffects. Both sets of fluxes computcd for thc 63 model atmosphcrcs wcrc subjccted to a stepwiscscreening multiple lincar rcgrcssion analysis, using cmpirically tested paramcters grossly representativc of the radiosondes. In terms of thesc paramctcrs as independent variables, thc fluxes computcd by the radiative model of Wark ct al. mcre spccificd in accordance with a multiple corrclation cocfficicnt of 0.98, whilc the fluxes computcd herc gavc rise to a multiple correlation of 0.625. The chief reason advanccd for thc smaller statistical specification by thc present model, as contrasted with that of Wark et al. is considered to be duc to the differing number of sounding levels used in carrying out thc two sets of computation.
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