物理学报2011，Vol.60Issue(9)：842-850,9.
近48年中国的季节变化与极端温度事件的联系
Seasonal changes in China during recent 48 years and their relationship with temperature extremes
摘要
Abstract
With nonlinear similarity method, we divised the seasons for whole China on the basis of daily mean temperature, pressure, relative humidity and precipitation at 752 stations for the period 1961—2008, and analyze the seasonal division for eight regions of China and seasonal times. In addition, the relevant statistic data are established which contain the annual variation in frequency of extreme temperature in China. By combining these two research findings, their relationship over the past 48 years is found through correlation analysis and sensitivity test. The results show that： （1） in most areas of China, the spring and summer starting time move up, their durations are extended, autumn starting time changes a litter, and its duration is extended, while winter is pushed back the starting time, and its duration is shortened. （2） With the summer extending, the frequency of extreme high temperature is increased in most areas of China except East China, while the shortening of winter results in the frequency of extreme low temperature declining markedly. （3） The existence and the annual change of extreme high and low temperature are the reason why the lengths of summer and winter change, and they are also the main reason why the substantial fluctuations of the lengths of summer and winter take place.关键词
非线性相似度量方法/季节变化/极端温度Key words
non-linear similarity method/seasonal changes/temperature extremes分类
天文与地球科学引用本文复制引用
赵俊虎,封国林,张世轩,孙树鹏..近48年中国的季节变化与极端温度事件的联系[J].物理学报,2011,60(9):842-850,9.基金项目
国家自然科学基金 （）
科技支撑项目（批准号：2007BAC29B01 2009BAC51B04）资助的课题 （）
