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	Monthly ratios of PAR to global solar radiation measured at northern Tibetan Plateau, China
	Li, Ren1,2,3; Zhao, Lin1,2,3; Ding, Yongjian2,3; Wang, Sheng4; Ji, Guoliang1,3; Xiao, Yao1,2,3; Liu, Guangyue1,2,3; Sun, Linchan1,2,3
刊名	SOLAR ENERGY
	2010-06-01
卷号	84期号:6页码:964-973
关键词	Tibetan Plateau Global solar radiation Photosynthetically active radiation
ISSN号	0038-092X
DOI	10.1016/j.solener.2010.03.005
通讯作者	Li, Ren(liren@lzb.ac.cn)
英文摘要	Using narrowband and broadband solar radiation measurements collected at Wudaoliang (WDL) site in northern Tibetan Plateau (NTP) from September 1993 to December 1998, the relationship between monthly photosynthetically active radiation (Q(P)) and global solar radiation (R(S)) values is analyzed. Temporal variability of the ratio (Q(P)/R(S)) and its further dependence on several meteorological variables are presented. The narrowband ratio exhibited diurnal and seasonal variability with high values during morning and afternoon hours and low values around noon in winter time, whereas during summer period the ratio was decreased from morning to afternoon. The ratio (Q(P)/R(S)) was correlated positively with several atmospheric parameters such as water vapor pressure and low-level cloud amount; in contrast, the ratio was negatively correlated with clearness index, relative sunshine duration and atmospheric turbidity. It was also found that both the relative sunshine duration and water vapor pressure are the most influential parameters on the estimations of the spectral PAR ratio. Finally, an empirically derived model is proposed for estimating monthly average PAR values over the northern Tibetan Plateau. Verification results further ensured that the proposed model predicts monthly global PAR values accurately. (C) 2010 Elsevier Ltd. All rights reserved.
收录类别	SCI
WOS关键词	PHOTOSYNTHETICALLY ACTIVE RADIATION ; SHORTWAVE IRRADIANCE ; EARTHS SURFACE ; FLUX-DENSITY ; DIFFUSE ; MODELS ; COMPONENTS ; ATHENS ; GREECE
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000278235200010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556412
专题	寒区旱区环境与工程研究所
通讯作者	Li, Ren
作者单位	1.Chinese Acad Sci, Cryosphere Res Stn Qinghai Xizang Plateau, Lanzhou 730000, Peoples R China 2.State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 4.Lanzhou Univ, Acad Atmospher Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, Ren,Zhao, Lin,Ding, Yongjian,et al. Monthly ratios of PAR to global solar radiation measured at northern Tibetan Plateau, China[J]. SOLAR ENERGY,2010,84(6):964-973.
APA	Li, Ren.,Zhao, Lin.,Ding, Yongjian.,Wang, Sheng.,Ji, Guoliang.,...&Sun, Linchan.(2010).Monthly ratios of PAR to global solar radiation measured at northern Tibetan Plateau, China.SOLAR ENERGY,84(6),964-973.
MLA	Li, Ren,et al."Monthly ratios of PAR to global solar radiation measured at northern Tibetan Plateau, China".SOLAR ENERGY 84.6(2010):964-973.

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