Spatial and Temporal Distribution Characteristic of High Temperature in Guizhou during 1961-2010
The spatial and temporal distribution characteristic of high temperature was studied by the linear trend analysis based on the day-by-day data of 81 meteorological stations in Guizhou during 1961-2010 to provide the scientific basis for prevention and reduction of natural disasters and division of high temperature meteorological disaster risk areas. The results show that there are 7.3 d with high temperature,which mainly occurs in July and August,accounts for 75.6% of total year.The days with high temperature show a weakly rising trend with 0.25 d/10a rate,and average maximum temperature and extreme maximum temperature significantly increase by 0.12℃/10a and 0.41℃/10a rate respectively. Average annual days with high temperature mainly distribute Tongren City,Qiandongnan Prefecture, Qiannan Prefecture and Northern Zunyi City and the maximum day number is up to 29.9 d.The number of high temperature day in Qianxinan Prefecture,Qiandongnan Prefecture,Qiannan Prefecture and most areas of Northwestern Guizhou shows a slight rising trend but the number of high temperature days in Zhengyun,Tongren,Jianhe,Xingyi,Tianzhu and Chishui appears a declining trend.Two extremum centers of extreme high temperature locate in Duyun(47.3℃)and Chishui(42.3℃)separately.
high temperaturenumber of high temperature daysextreme weatherspatial and temporal distributionGuizhou
NETL
NSTL
万方数据
维普
