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Automatic methods for gas absorption calculation based on correlated k-distribution
Zhu, Mingwei1; Jin, Shuanggen1,2; Tao, Ju3; Wu, Xinyue4
2021-08-01
Source PublicationJOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
ISSN0022-4073
Volume270Pages:13
AbstractSeveral schemes have been proposed for handling gaseous overlapping bands in the context of the correlated k-distribution model (CKD), but they all require manual operation and the accuracy is limited. In this paper, we proposed two automatic methods for gas absorption calculation based on correlated k-distribution, namely finding point method (FPM) and re-optimized method (ROM), to improve the accuracy and the speed of gaseous absorption calculation. Compared with the line-by-line (LBL) results under standard profiles, the resulting accuracy of FPM is 0.09 Kday(-1) in troposphere,-0.3 Kday(-1) in stratosphere,-0.18 W/m(2) for upward flux and-0.44 W/m(2) for downward flux; the accuracy of ROM is 0.1 Kday(-1) in troposphere, 0.3 Kday(-1) in stratosphere,-0.35 W/m(2) for upward flux and -0.18 W/m(2) for downward flux. The accuracy of the two methods is higher than rapid radiative transfer model for general circulation models (RRTMG). Under realistic profiles, the accuracy of FPM and ROM is slightly lower than that their accuracy under standard profiles but still higher than RRTMG. (C) 2021 Elsevier Ltd. All rights reserved.
KeywordCorrelated k-distribution model Finding point method Gas absorption calculation Optimization method
Funding OrganizationJiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST
DOI10.1016/j.jqsrt.2021.107697
WOS KeywordRADIATIVE-TRANSFER ; ATMOSPHERIC FLUXES ; COOLING RATES ; MODEL ; IMPACT ; RRTM
Language英语
Funding ProjectJiangsu Province Distinguished Professor Project[R2018T20] ; Startup Foundation for Introducing Talent of NUIST[2018R037]
Funding OrganizationJiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST
WOS Research AreaOptics ; Spectroscopy
WOS SubjectOptics ; Spectroscopy
WOS IDWOS:000670398200003
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76677
Collection中国科学院国家天文台
Corresponding AuthorJin, Shuanggen
Affiliation1.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
3.Ningbo Meteorol Safety & Technol Ctr, Ningbo 315010, Peoples R China
4.Zhenjiang Meteorol Bur, Zhenjiang 212003, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Mingwei,Jin, Shuanggen,Tao, Ju,et al. Automatic methods for gas absorption calculation based on correlated k-distribution[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,2021,270:13.
APA Zhu, Mingwei,Jin, Shuanggen,Tao, Ju,&Wu, Xinyue.(2021).Automatic methods for gas absorption calculation based on correlated k-distribution.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,270,13.
MLA Zhu, Mingwei,et al."Automatic methods for gas absorption calculation based on correlated k-distribution".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 270(2021):13.
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