Effects of Variation of Low Ozone Center over the Tibetan Plateau on Climate in China
青藏高原臭氧低值中心的变化与我国气候的关系

Based on the NCEP/NCAR reanalyzed data,the GPCP(Global Precipitation Climatology Project) precipitation data and 160-station observed precipitation data in China,the climatologic differences of the Low Ozone Center(LOC) over the Tibetan Plateau between the strong years and the weak years are analyzed.The results show that the variation of total ozone over the Tibetan Plateau from May to July has an obvious correlation with the temperature and precipitation in the summer and winter of the year and the spring of the next year.When the total ozone over the plateau is less in summer,the surface temperature in most part of China is higher,the precipitation to the south of the Changjiang River is more,and the precipitation to the north of the Changjiang River,especially between the middle and lower reaches of the Changjiang River and the Huanghe River,is obviously less.In winter and the next spring,the winter monsoon is stronger and the surface temperature is higher in most part of China.In the years when the total ozone over the plateau is more,things are opposite.So the variation of LOC over the plateau is worthy of being considered in climatic prediction of China.