Nonlinearity and Fractal Properties of Climate Change during the Past 500 Years in Northwestern China

被引：9
|
作者：
Wan, Shiquan [1 ,2 ]
Liu, Qunqun [3 ]
Zou, Jianxin [1 ]
He, Wenping [4 ]
机构：
[1] Yangzhou Meteorol Off, Yangzhou 225009, Jiangsu, Peoples R China
[2] Yangzhou Univ, Yangzhou 225009, Jiangsu, Peoples R China
[3] Nanjing Univ Informat Sci & Technol, Coll Phys, Nanjing 210044, Jiangsu, Peoples R China
[4] CMA, Natl Climate Ctr, Beijing 100086, Peoples R China
来源：
DISCRETE DYNAMICS IN NATURE AND SOCIETY | 2016年 / 2016卷
基金：
中国国家自然科学基金;
关键词：
FLUCTUATIONS;
D O I：
10.1155/2016/4269431
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
By using detrended fluctuation analysis (DFA), the present paper analyzed the nonlinearity and fractal properties of tree-ring records from two types of trees in northwestern China, and then we disclosed climate change characteristics during the past 500 years in this area. The results indicate that climate change in northwestern China displayed a long-range correlation (LRC), which can exist over time span of 100 years or longer. This conclusion provides a theoretical basis for long-term climate predictions. Combining the DFA results obtained from daily temperatures records at the Xi'an meteorological observation station, which is near the southern peak of the Huashan Mountains, self-similarities widely existed in climate change on monthly, seasonal, annual, and decadal timescales during the past 500 years in northwestern China, and this change was a typical nonlinear process.
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页数：7
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