Advances in Earth Science ›› 2007, Vol. 22 ›› Issue (7): 673-684. doi: 10.11867/j.issn.1001-8166.2007.07.0673

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Changes in Mean Climate and Extreme Cliamte in China During the Last 40 Years

QIAN Wei-hong, FU Jiao-lan, ZHANG Wei-wei, LIN Xiang   

  1. Department of Atmospheric Sciences, Peking University, Beijing 100871,China
  • Received:2007-04-18 Revised:2007-06-08 Online:2007-07-10 Published:2007-07-10

QIAN Wei-hong, FU Jiao-lan, ZHANG Wei-wei, LIN Xiang. Changes in Mean Climate and Extreme Cliamte in China During the Last 40 Years[J]. Advances in Earth Science, 2007, 22(7): 673-684.

This paper reviewed the changes in mean climate and extreme climate in China during the last 40 years based on the daily observational records of the recent 50 years, provided by China Meteorological Administration. Accompanying the global warming, decreasing trends observed from those events of light rain, cold surge, cold days, and cold nights, while increasing trends found from extreme strong rainfall, warm nights and warm days. Effective rainfall occupied regional anomalous distributions that were affected by westerly flow and monsoon flow. In the eastern monsoon region, transition of summer rainfall from below normal to above normal in the lower Yangtze River in 1979 was accompanied with dry trends in North China and South China. A new transition of summer rainfall from below normal to above normal in South China was observed in 1991 while other two transitions to wet climate occurred in 1983 over Northeast China and in 1987 over the Xinjiang region. Trend distributions of extreme temperature and extreme precipitation were good agreement with that of mean temperature and mean precipitation in China.

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