气候变化领域集成服务门户(CCPortal): Reconstruction of daily photosynthetically active radiation and its trends over China

CCPortal

DOI	10.1002/2013JD020527
	Reconstruction of daily photosynthetically active radiation and its trends over China
	Tang, Wenjun; Qin, Jun; Yang, Kun; Niu, Xiaolei; Zhang, Xiaotong; Yu, Yu; Zhu, Xudong
通讯作者	Tang, WJ (通讯作者)
发表日期	2013
ISSN	2169-897X
EISSN	2169-8996
起始页码	13292
结束页码	13302
卷号	118 期号:23
英文摘要	Photosynthetically active radiation (PAR) is widely required in ecological studies, but it is not routinely measured at China Meteorological Administration (CMA) stations. In this study, a PAR model is utilized to estimate daily PAR from routine meteorological parameters (air temperature, air pressure, relative humidity, and sunshine duration) at CMA stations. The estimate is evaluated against measurements at 10 Chinese Ecosystem Research Network (CERN) stations. The model can produce PAR with mean bias errors of -2.4Wm(-2), root mean square errors of 14.0Wm(-2), and correlation coefficient (R) of 0.92 at all CERN stations. Comparison with a locally calibrated model indicates that the estimate has a comparable or even higher accuracy than the local model calibrated with CERN data. Another evaluation at an independent site further indicates that our estimate has higher accuracy than the local model at stations independent of CERN. Finally, a 50year data set of daily PAR at 716 CMA stations over China is reconstructed by the validated model, and its climatology and long-term variations over China are analyzed. The data set would substantially contribute to ecological studies in China.
关键词	GLOBAL SOLAR-RADIATION SPATIOTEMPORAL VARIATION SKY CONDITIONS FLUX-DENSITY SURFACE PAR DIFFUSE PRODUCTIVITY VARIABILITY PLATEAU
英文关键词	photosynthetically active radiation; model; estimation; reconstruction
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000330266500039
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258225
推荐引用方式 GB/T 7714	Tang, Wenjun,Qin, Jun,Yang, Kun,et al. Reconstruction of daily photosynthetically active radiation and its trends over China[J]. 中国科学院青藏高原研究所,2013,118(23).
APA	Tang, Wenjun.,Qin, Jun.,Yang, Kun.,Niu, Xiaolei.,Zhang, Xiaotong.,...&Zhu, Xudong.(2013).Reconstruction of daily photosynthetically active radiation and its trends over China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,118(23).
MLA	Tang, Wenjun,et al."Reconstruction of daily photosynthetically active radiation and its trends over China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 118.23(2013).