Sciences in Cold and Arid Regions ›› 2017, Vol. 9 ›› Issue (5): 476–487.doi: 10.3724/SP.J.1226.2017.00476

• ARTICLES • 上一篇    

Complex network analysis of climate change in the Tarim River Basin, Northwest China

ZuHan Liu1,3, JianHua Xu2,3, WeiHong Li4   

  1. 1. Jiangxi Provincial Key Laboratory of Water Information Cooperative Sensing and Intelligent Processing, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, China;
    2. Key Laboratory of Geographic Information Science(Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai 200241, China;
    3. Research Center for East-West Cooperation in China, East China Normal University, Shanghai 200241, China;
    4. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
  • 收稿日期:2017-02-27 修回日期:2017-04-28 发布日期:2018-11-23
  • 通讯作者: JianHua Xu,jhxu@geo.ecnu.edu.cn E-mail:jhxu@geo.ecnu.edu.cn
  • 基金资助:
    This work was supported by the Science and Technology Project of Jiangxi Provincial Department of Education (No. GJJ161097), the Open Foundation of the State Key Laboratory of Desert and Oasis Ecology (No. G2014-02-07), the National Natural Science Foundation of China (41630859), the Open Research Fund of Jiangxi Province Key Laboratory of Water Information Cooperative Sensing and Intelligent Processing (No. 2016WICSIP012), and the Key Project of Jiangxi Provincial Department of Science and Technology (No. 20161BBF60061).

Complex network analysis of climate change in the Tarim River Basin, Northwest China

ZuHan Liu1,3, JianHua Xu2,3, WeiHong Li4   

  1. 1. Jiangxi Provincial Key Laboratory of Water Information Cooperative Sensing and Intelligent Processing, Nanchang Institute of Technology, Nanchang, Jiangxi 330099, China;
    2. Key Laboratory of Geographic Information Science(Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai 200241, China;
    3. Research Center for East-West Cooperation in China, East China Normal University, Shanghai 200241, China;
    4. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
  • Received:2017-02-27 Revised:2017-04-28 Published:2018-11-23
  • Contact: JianHua Xu,jhxu@geo.ecnu.edu.cn E-mail:jhxu@geo.ecnu.edu.cn
  • Supported by:
    This work was supported by the Science and Technology Project of Jiangxi Provincial Department of Education (No. GJJ161097), the Open Foundation of the State Key Laboratory of Desert and Oasis Ecology (No. G2014-02-07), the National Natural Science Foundation of China (41630859), the Open Research Fund of Jiangxi Province Key Laboratory of Water Information Cooperative Sensing and Intelligent Processing (No. 2016WICSIP012), and the Key Project of Jiangxi Provincial Department of Science and Technology (No. 20161BBF60061).

摘要: The complex network theory provides an approach for understanding the complexity of climate change from a new perspective. In this study, we used the coarse graining process to convert the data series of daily mean temperature and daily precipitation from 1961 to 2011 into symbol sequences consisting of five characteristic symbols (i.e., R, r, e, d and D), and created the temperature fluctuation network (TFN) and precipitation fluctuation network (PFN) to discover the complex network characteristics of climate change in the Tarim River Basin of Northwest China. The results show that TFN and PEN both present characteristics of scale-free network and small-world network with short average path length and high clustering coefficient. The nodes with high degree in TFN are RRR, dRR and ReR while the nodes with high degree in PFN are rre, rrr, eee and err, which indicates that climate change modes represented by these nodes have large probability of occurrence. Symbol R and r are mostly included in the important nodes of TFN and PFN, which indicate that the fluctuating variation in temperature and precipitation in the Tarim River Basin mainly are rising over the past 50 years. The nodes RRR, DDD, ReR, RRd, DDd and Ree are the hub nodes in TFN, which undertake 19.71% betweenness centrality of the network. The nodes rre, rrr, eee and err are the hub nodes in PFN, which undertake 13.64% betweenness centrality of the network.

关键词: climate change, complex networks, coarse graining process, temperature fluctuation network, precipitation fluctuation network, Northwest China

Abstract: The complex network theory provides an approach for understanding the complexity of climate change from a new perspective. In this study, we used the coarse graining process to convert the data series of daily mean temperature and daily precipitation from 1961 to 2011 into symbol sequences consisting of five characteristic symbols (i.e., R, r, e, d and D), and created the temperature fluctuation network (TFN) and precipitation fluctuation network (PFN) to discover the complex network characteristics of climate change in the Tarim River Basin of Northwest China. The results show that TFN and PEN both present characteristics of scale-free network and small-world network with short average path length and high clustering coefficient. The nodes with high degree in TFN are RRR, dRR and ReR while the nodes with high degree in PFN are rre, rrr, eee and err, which indicates that climate change modes represented by these nodes have large probability of occurrence. Symbol R and r are mostly included in the important nodes of TFN and PFN, which indicate that the fluctuating variation in temperature and precipitation in the Tarim River Basin mainly are rising over the past 50 years. The nodes RRR, DDD, ReR, RRd, DDd and Ree are the hub nodes in TFN, which undertake 19.71% betweenness centrality of the network. The nodes rre, rrr, eee and err are the hub nodes in PFN, which undertake 13.64% betweenness centrality of the network.

Key words: climate change, complex networks, coarse graining process, temperature fluctuation network, precipitation fluctuation network, Northwest China

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