中国物理B ›› 2011, Vol. 20 ›› Issue (7): 79201-079201.doi: 10.1088/1674-1056/20/7/079201

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Circulation system complex networks and teleconnections

王晓娟1, 冯爱霞2, 龚志强3, 支蓉3   

  1. (1)College of Physics and Electronic Engineering, Changshu Institute of Technology, Changshu 215500, China; (2)Department of Physics, Yangzhou University, Yangzhou 225009, China; (3)Laboratory for Climate Monitoring and Diagnosing, National Climate Center, China Meteorological Administration, Beijing 100081, China
  • 收稿日期:2010-08-24 修回日期:2011-02-14 出版日期:2011-07-15 发布日期:2011-07-15

Circulation system complex networks and teleconnections

Gong Zhi-Qiang(龚志强)a), Wang Xiao-Juan(王晓娟) b)†, Zhi Rong(支蓉) a), and Feng Ai-Xia(冯爱霞)c)   

  1. a Laboratory for Climate Monitoring and Diagnosing, National Climate Center, China Meteorological Administration, Beijing 100081, China; b College of Physics and Electronic Engineering, Changshu Institute of Technology, Changshu 215500, China; c Department of Physics, Yangzhou University, Yangzhou 225009, China
  • Received:2010-08-24 Revised:2011-02-14 Online:2011-07-15 Published:2011-07-15

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摘要： In terms of the characteristic topology parameters of climate complex networks, the spatial connection structural complexity of the circulation system and the influence of four teleconnection patterns are quantitatively described. Results of node degrees for the Northern Hemisphere (NH) mid-high latitude (30circ N—90circ N) circulation system (NHS) networks with and without the Arctic Oscillations (AO), the North Atlantic Oscillations (NAO) and the Pacific—North American pattern (PNA) demonstrate that the teleconnections greatly shorten the mean shortest path length of the networks, thus being advantageous to the rapid transfer of local fluctuation information over the network and to the stability of the NHS. The impact of the AO on the NHS connection structure is most important and the impact of the NAO is the next important. The PNA is a relatively independent teleconnection, and its role in the NHS is mainly manifested in the connection between the NHS and the tropical circulation system (TRS). As to the Southern Hemisphere mid-high latitude (30circ S—90circ S) circulation system (SHS), the impact of the Antarctic Arctic Oscillations (AAO) on the structural stability of the system is most important. In addition, there might be a stable correlation dipole (AACD) in the SHS, which also has important influence on the structure of the SHS networks.

关键词: complex network, structural feature, circulation system, node degree

Abstract: In terms of the characteristic topology parameters of climate complex networks, the spatial connection structural complexity of the circulation system and the influence of four teleconnection patterns are quantitatively described. Results of node degrees for the Northern Hemisphere (NH) mid-high latitude (30°N—90°N) circulation system (NHS) networks with and without the Arctic Oscillations (AO), the North Atlantic Oscillations (NAO) and the Pacific—North American pattern (PNA) demonstrate that the teleconnections greatly shorten the mean shortest path length of the networks, thus being advantageous to the rapid transfer of local fluctuation information over the network and to the stability of the NHS. The impact of the AO on the NHS connection structure is most important and the impact of the NAO is the next important. The PNA is a relatively independent teleconnection, and its role in the NHS is mainly manifested in the connection between the NHS and the tropical circulation system (TRS). As to the Southern Hemisphere mid-high latitude (30°S—90°S) circulation system (SHS), the impact of the Antarctic Arctic Oscillations (AAO) on the structural stability of the system is most important. In addition, there might be a stable correlation dipole (AACD) in the SHS, which also has important influence on the structure of the SHS networks.

Key words: complex network, structural feature, circulation system, node degree

中图分类号:  (Weather analysis and prediction)

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