气候变化领域集成服务门户(CCPortal): Development of a 50-year daily surface solar radiation dataset over China

CCPortal

DOI	10.1007/s11430-012-4542-9
	Development of a 50-year daily surface solar radiation dataset over China
	Tang WenJun; Yang Kun; Qin Jun; Min Min
通讯作者	Tang, WJ (通讯作者)
发表日期	2013
ISSN	1674-7313
EISSN	1869-1897
起始页码	1555
结束页码	1565
卷号	56 期号:9
英文摘要	Although solar radiation is a crucial parameter in designing solar power devices and studying land surface processes, long-term and densely distributed observations of surface solar radiation are usually not available. This paper describes the development of a 50-year dataset of daily surface solar radiation at 716 China Meteorological Administration (CMA) stations. First, a physical model, without any local calibration, is applied to estimate the daily radiation at all 716 CMA routine stations. Then, an ANN-based (Artificial Neural Network) model is applied to extend radiation estimates to earlier periods at each of all 96 CMA radiation stations. The ANN-based model is trained with recent reliable radiation data and thus its estimate is more reliable than the physical model. Therefore, the ANN-based model is used to correct the physical model dynamically at a monthly scale. The correction generally improves the accuracy of the radiation dataset estimated by the physical model: the mean bias error (MBE) averaged over all the 96 radiation stations during 1994-2002 is reduced from 0.68 to -0.11 MJ m(-2) and the root mean square error (RMSE) from 2.01 to 1.80 MJ m(-2). The new radiation dataset shows superior performance over previous estimates by locally calibrated ngstrom-Prescott models. Based on the new radiation dataset, the annual mean daily solar radiation over China is 14.3 MJ m(-2). The maximal seasonal mean daily solar radiation occurs in the Tibetan Plateau during summer with a value of 27.1 MJ m(-2), whereas the minimal seasonal mean daily solar radiation occurs in the Sichuan Basin during winter with a value of 4.7 MJ m(-2).
关键词	ARTIFICIAL NEURAL-NETWORKS GLOBAL DATA SETS SUNSHINE DURATION QUALITY-CONTROL INPUT DATA TEMPERATURE SIMULATION ALGORITHM FLUXES TREND
英文关键词	solar radiation; dataset; correction method; hybrid model; ANN
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000323746500010
来源期刊	SCIENCE CHINA-EARTH SCIENCES
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/258141
推荐引用方式 GB/T 7714	Tang WenJun,Yang Kun,Qin Jun,et al. Development of a 50-year daily surface solar radiation dataset over China[J]. 中国科学院青藏高原研究所,2013,56(9).
APA	Tang WenJun,Yang Kun,Qin Jun,&Min Min.(2013).Development of a 50-year daily surface solar radiation dataset over China.SCIENCE CHINA-EARTH SCIENCES,56(9).
MLA	Tang WenJun,et al."Development of a 50-year daily surface solar radiation dataset over China".SCIENCE CHINA-EARTH SCIENCES 56.9(2013).