Based on daily maximum and minimum temperature data of 234 stations in China during the period of 1955—2005,the spatial and temporal features of trends of annual and seasonal extreme temperatures are studied by using modern statistical diagnostic methods such as the computation of trend coefficients.Results show the stably increasing trends of annual and seasonal extreme minimum temperatures all over China.Decreasing trends of extreme maximum temperatures are obvious in the lower reaches of the Yellow River...
0引言20世纪以来,由于全球气候变暖,在此背景下的极端气温事件引起了众多学者的关注。政府间气候变化专业委员会(Intergovernmental Panel on C li-mate Change,简称IPCC)第三次评估报告(2001年)指出[1],极端天气事件是指某一地点或地区从统计分布的观点看不常或极少发生的天气