江西贵溪市近50年气候特征分析

利用1953—2002年贵溪市国家一级站的气象资料,分析了近50 a贵溪市气温、降水、日照的变化特征。分析结果表明,贵溪市年、冬季气温呈上升趋势,而夏季气温呈下降趋势,20世纪90年代冬季增温最为明显;年降水总体呈略上升趋势,90年代降水量异常偏多;年日照时数总体呈下降趋势。分析结果还表明,贵溪市气候正在趋向变暖,特别是近10 a来气温升高明显。

Analysis of Climatic Characteristics of the Last 50 Years in Guixi Jiangxi

Using the meteorological data of Guixi city, the first grade station of state, during 1953 to 2002, the evolvement characteristics of temperature, rainfall and sunlight during the last 50 years are analyzed. The result shows that temperature assumes upward trend during winter and the whole year but downward trend during summer. There is the most temperature increasing in the winter in 1990's. The total trend of annual rainfall raise a little and it were unconventionally high in 90's. The number of sunlight totally assumes downward trend. And the result also indicates that it is warming in Guixi city, it is especially obvious in the last 10 years.