干旱区生态环境知识资源中心(Arid): Comprehensive assessment of parameterization methods for estimating clear-sky surface downward longwave radiation

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DOI	10.1007/s00704-018-2423-7
	Comprehensive assessment of parameterization methods for estimating clear-sky surface downward longwave radiation
	Guo, Yamin 1,2; Cheng, Jie 1,2,3; Liang, Shunlin 1,2,3
通讯作者	Cheng, Jie
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2019
卷号	135 期号:3-4 页码:1045-1058
英文摘要	Surface downward longwave radiation (SDLR) is a key variable for calculating the earth's surface radiation budget. In this study, we evaluated seven widely used clear-sky parameterization methods using ground measurements collected from 71 globally distributed fluxnet sites. The Bayesian model averaging (BMA) method was also introduced to obtain a multi-model ensemble estimate. As a whole, the parameterization method of Carmona et al. (2014) performs the best, with an average BIAS, RMSE, and R-2 of -0.11W/m(2), 20.35W/m(2), and 0.92, respectively, followed by the parameterization methods of Idso (1981), Prata (Q J R Meteorol Soc 122:1127-1151, 1996), Brunt and Sc (Q J R Meteorol Soc 58:389-420, 1932), and Brutsaert (Water Resour Res 11:742-744, 1975). The accuracy of the BMA is close to that of the parameterization method of Carmona et al. (2014) and comparable to that of the parameterization method of Idso (1981). The advantage of the BMA is that it achieves balanced results compared to the integrated single parameterization methods. To fully assess the performance of the parameterization methods, the effects of climate type, land cover, and surface elevation were also investigated. The five parameterization methods and BMA all failed over land with the tropical climate type, with high water vapor, and had poor results over forest, wetland, and ice. These methods achieved better results over desert, bare land, cropland, and grass and had acceptable accuracies for sites at different elevations, except for the parameterization method of Carmona et al. (2014) over high elevation sites. Thus, a method that can be successfully applied everywhere does not exist.
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000464905800017
WOS关键词	WAVE-RADIATION ; MODEL ; FORMULA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219069
作者单位	1.Beijing Normal Univ, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China; 2.Beijing Normal Univ, Inst Remote Sensing & Digital Earth, Chinese Acad Sci, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China; 3.Beijing Normal Univ, Inst Remote Sensing Sci & Engn, Fac Geog Sci, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Guo, Yamin,Cheng, Jie,Liang, Shunlin. Comprehensive assessment of parameterization methods for estimating clear-sky surface downward longwave radiation[J]. 北京师范大学,2019,135(3-4):1045-1058.
APA	Guo, Yamin,Cheng, Jie,&Liang, Shunlin.(2019).Comprehensive assessment of parameterization methods for estimating clear-sky surface downward longwave radiation.THEORETICAL AND APPLIED CLIMATOLOGY,135(3-4),1045-1058.
MLA	Guo, Yamin,et al."Comprehensive assessment of parameterization methods for estimating clear-sky surface downward longwave radiation".THEORETICAL AND APPLIED CLIMATOLOGY 135.3-4(2019):1045-1058.