Journal of Geographical Sciences ›› 2003, Vol. 13 ›› Issue (2): 208-216.

• Climate and Environmental Change • Previous Articles     Next Articles

Influence of Arctic Oscillation on winter climate over China

GONG Daoyi1, WANG Shaowu2   

  1. 1. Key Laboratory of Environmental Change and Natural Disaster, Institute of Resources Science, Beijing Normal University, Beijing 100875, China|
    2. Department of Atmospheric Science, Peking University, Beijing 100871, China
  • Received:2002-10-12 Revised:2003-02-08 Online:2003-06-25 Published:2010-09-18
  • Supported by:

    The Excellent Young Teachers Program of MOE, No.EYTP-1964; National Natural Science Foundation of China, No.NSFC-40105007

Abstract:

In this study the relationship between the Arctic Oscillation (AO) and climate in China in boreal winter are investigated. Correlation analysis for the last 41 years shows that the winter temperature and precipitation in China change in phase with AO. High positive correlation (>0.4) between temperature and AO appears in the northern China. High correlation coefficients between precipitation and AO cover the southern China (close to the South China Sea) and the central China (between 30o-40oN and east of ~100oE), with the values varying between +0.3 and +0.4. It is found that during the past several decades the precipitation was strongly affected by AO, but for the temperature the Siberian High plays a more important role. At the interdecadal time scale the AO has significant influence on both temperature and precipitation. Multivariate regression analysis demonstrates that AO and the Siberian High related variance in temperature and precipitation is 35% and 11% respectively. For precipitation, however the portion is rather low, implying that some other factors may be responsible for the changes in precipitation, in addition to AO and the Siberian High.

Key words: Arctic Oscillation, climate, China

CLC Number: 

  • P461