Scaling behaviors of precipitation over China

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Scaling behaviors of precipitation over China
	Jiang, Lei 1,2; Li, Nana 3; Zhao, Xia4
刊名	THEORETICAL AND APPLIED CLIMATOLOGY
	2017-04-01
卷号	128 期号:1-2 页码:63-70
英文摘要	Scaling behaviors in the precipitation time series derived from 1951 to 2009 over China are investigated by detrended fluctuation analysis (DFA) method. The results show that there exists long-term memory for the precipitation time series in some stations, where the values of the scaling exponent alpha are less than 0.62, implying weak persistence characteristics. The values of scaling exponent in other stations indicate random behaviors. In addition, the scaling exponent alpha in precipitation records varies from station to station over China. A numerical test is made to verify the significance in DFA exponents by shuffling the data records many times. We think it is significant when the values of scaling exponent before shuffled precipitation records are larger than the interval threshold for 95 % confidence level after shuffling precipitation records many times. By comparison, the daily precipitation records exhibit weak positively long-range correlation in a power law fashion mainly at the stations taking on zonal distributions in south China, upper and middle reaches of the Yellow River, northern part of northeast China. This may be related to the subtropical high. Furthermore, the values of scaling exponent which cannot pass the significance test do not show a clear distribution pattern. It seems that the stations are mainly distributed in coastal areas, southwest China, and southern part of north China. In fact, many complicated factors may affect the scaling behaviors of precipitation such as the system of the east and south Asian monsoon, the interaction between sea and land, and the big landform of the Tibetan Plateau. These results may provide a better prerequisite to long-term predictor of precipitation time series for different regions over China.
收录类别	SCI
语种	英语
WOS记录号	WOS:000398936200005
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/136707]
专题	海洋研究所_海洋环流与波动重点实验室海洋研究所_海洋地质与环境重点实验室
作者单位	1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China 2.Jiangsu Res Ctr Ocean Survey Technol, Nanjing 210044, Jiangsu, Peoples R China 3.Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Lei,Li, Nana,Zhao, Xia. Scaling behaviors of precipitation over China[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2017,128(1-2):63-70.
APA	Jiang, Lei,Li, Nana,&Zhao, Xia.(2017).Scaling behaviors of precipitation over China.THEORETICAL AND APPLIED CLIMATOLOGY,128(1-2),63-70.
MLA	Jiang, Lei,et al."Scaling behaviors of precipitation over China".THEORETICAL AND APPLIED CLIMATOLOGY 128.1-2(2017):63-70.