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## Abstract A new version of the Edwards–Slingo (ES) radiation scheme is developed using the correlated‐__k__ distribution (CKD) method. The work is conducted based on the line‐by‐line radiative transfer scheme GENLN2. A dataset of new ozone absorption cross‐section in the ultraviolet spectrum and new oxygen collision‐induced continuum data have been implemented in both the GENLN2 and new ES schemes. In order to improve the efficiency of the ES scheme, a new technique is proposed in this work to optimize the __k__ distribution and a new method is used to deal with the gaseous overlapping absorption in a spectral band. The accuracy of the scheme is improved by replacing the scaling function used in the ES scheme with a pre‐determined look‐up table for consideration of the pressure and temperature dependency of the absorption oefficients. The number of spectral bands and number of absorbing species are both increased in the new scheme for better resolution of the spectral variation of absorbing species, aerosols and clouds. However, this does not increase the computational cost. Instead, it is reduced substantially compared with the previous version of the code. The treatment of tran

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Author

Zhian Sun

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 0035-9009)

Published

2011

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)