Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5431044 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2006 | 13 Pages |
Abstract
The selection of the number of k-interval is a foundation to correlated k-distribution method and the problem of how to do it still remains unsettled. It is pointed out by numerical computation in this work that choosing the number of k-interval is a major factor affecting accuracy and speed in radiative calculation. To increase the number of k-interval is an efficient method to improve the accuracy. However, it is found by this study that there exists a saturation of the accuracy to an increase of the number. The optimal rules on the number of k-interval choosing are proposed in the paper. Then, five versions on atmospheric absorption by gases appropriate for GCMs are given according to them.
Related Topics
Physical Sciences and Engineering
Chemistry
Spectroscopy
Authors
Hua Zhang, Guangyu Shi, Teruyuki Nakajima, Tsuneaki Suzuki,