Estimation of half-hourly diffuse solar radiation over a mixed plantation in north China

doi:10.1016/j.renene.2019.10.136

	Estimation of half-hourly diffuse solar radiation over a mixed plantation in north China
	Liu, Peirong 1; Tong, Xiaojuan 1; Zhang, Jinsong 3; Meng, Ping 3; Li, Jun 2; Zhang, Jingru 1
刊名	RENEWABLE ENERGY
	2020-04-01
卷号	149 页码:1360-1369
关键词	Global solar radiation Diffuse fraction Clearness index Diffuse solar radiation model
ISSN号	0960-1481
DOI	10.1016/j.renene.2019.10.136
通讯作者	Tong, Xiaojuan(tongxj@bjfu.edu.cn) ; Zhang, Jinsong(zhangjs@caf.ac.cn)
英文摘要	Diffuse solar radiation plays important role in carbon exchange between forest ecosystems and the atmosphere. Based on a 2-year (2016-2017) dataset of global and diffuse solar radiation, the annual mean diffuse fraction (the proportion of diffuse solar radiation to global solar radiation, DF) was approximately 0.45 over the plantation canopy. A proposed model (BRL-1), including six predictors (half-hourly clearness index CI, solar elevation angle, apparent solar time, daily CI, a persistence of global solar radiation and relative humidity), was developed using the ground-based measurements data of 2016. The DF values estimated by the proposed model were in good agreement with the measured ones. The values of the coefficient of determination (R-2), the root mean squared error (RMSE), the mean bias error (MBE) and the t(stat) for the proposed model were 0.82, 0.12, 0.002 and 1.16, respectively, lower than the results derived from other models. Therefore, the performance of the proposed model estimating half-hourly DF was better than the other models. Moreover, half-hourly diffuse solar radiation in cloudy skies estimated by the proposed model was more consistent with the measured one than that under clear skies. This study aims at helping us understand the change of diffuse solar radiation with clouds. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[31570617] ; National Natural Science Foundation of China[31872703] ; Central Public-interest Scientific Institution Basal Research Fund[CAFYBB2017ZX002-1]
WOS关键词	NET ECOSYSTEM EXCHANGE ; LIGHT-USE EFFICIENCY ; CARBON-DIOXIDE ; SKY CONDITIONS ; FRACTION ; IRRADIANCE ; MODELS ; IMPACT ; FOREST ; PRODUCTIVITY
WOS研究方向	Science & Technology - Other Topics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000517856500116
资助机构	National Natural Science Foundation of China ; Central Public-interest Scientific Institution Basal Research Fund
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/133762]
专题	中国科学院地理科学与资源研究所
通讯作者	Tong, Xiaojuan; Zhang, Jinsong
作者单位	1.Beijing Forestry Univ, Coll Forestry, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, State Forestry Adm, Beijing 100091, Peoples R China
推荐引用方式 GB/T 7714	Liu, Peirong,Tong, Xiaojuan,Zhang, Jinsong,et al. Estimation of half-hourly diffuse solar radiation over a mixed plantation in north China[J]. RENEWABLE ENERGY,2020,149:1360-1369.
APA	Liu, Peirong,Tong, Xiaojuan,Zhang, Jinsong,Meng, Ping,Li, Jun,&Zhang, Jingru.(2020).Estimation of half-hourly diffuse solar radiation over a mixed plantation in north China.RENEWABLE ENERGY,149,1360-1369.
MLA	Liu, Peirong,et al."Estimation of half-hourly diffuse solar radiation over a mixed plantation in north China".RENEWABLE ENERGY 149(2020):1360-1369.