By using the data of geography provided by Digital Fujian Project and establishing model which calculated the value of annual extreme minimum temperature,the map of spatial distribution about mean annual extreme minimum temperature was intuitively represented with 50 m×50 m resolution by GIS.

The probability distribution model of annually extremely lowest climate temperature of Yong an City was set up by applying the first model extreme distribution in the extreme theory and using the basic data of meteorological observation of Yong an City from 1971 to 2005.

Using the standardized data of the extreme high temperatures in summer from 1960 to 2007 of 34 meteorological stations in Chongqing,the spatial distributional and temporal evolution of extreme high temperatures in June-August in the 48 years are studied with EOF and REOF analyses.

Using the daily minimum temperature data of 100 stations in Northwest China in 1960-2004,the thresholds of daily extreme low temperature are determined for different stations,diagnosis of the frequencies of temporal and spatial distributions of annual extreme low temperature events is made for the recent 45 a,and their response to regional warming in Northwest China is analyzed.

The days of continuous low temperature,the largest number of days of continuous rain and snow,and the extreme low temperature of all the recorded low temperature and freezing events at the 10 typical stations were also analyzed.