| 摘要: |
| 利用1961～2018年六盘水市观测站的气温、降水、日照时数等气象资料,采用线性倾向估计、Mann-Kendall突变检验等方法,分析了六盘水市近58年的气候变化特征,结果表明：六盘水市近58年来年平均气温、各季平均气温、极端最高气温及最低气温均呈升高趋势,秋季增温趋势最明显,20世纪60年代到90年代六盘水年和各季的平均气温相对偏低,90年代以后逐渐升高,1999年前后年平均气温发生了突变。六盘水市春、夏、秋季及年降水呈减少趋势,冬季则呈增多趋势。六盘水市降水主要集中在5到9月,夏季降水量最多,冬季最少。六盘水市年及各季的日照时数量均呈减少趋势,夏季日照时数减少更显著；春季和夏季日照时数较多,冬季日照时数最少；日照时数8月最多,1月最少。 |
| 关键词: 六盘水；气温；降水；日照；Mann-Kendall突变 |
| DOI： |
| 投稿时间：2019-06-02修订日期：2019-08-02 |
| 基金项目: |
|
| Analysis of Liupanshui climate changes in the past 58 years under the Background of Climate Warming |
| yanghongyu,ZHONG Jin |
| (Meteorology Bureau of Liupanshui in Guizhou Province) |
| Abstract: |
| According to the data of temperature , precipitation and sunshine time and so on in Liupanshui from 1961 to 2018, the linear trend estimation and Mann - Kendall methods are used to analyze the characteristics of climatic change in Liupanshui in the past 58 years. the results show that the trend of annual average temperature, he season average temperature and extreme maximum and minimum temperature increased in the past 58 years. The trend of the autumn temperature increased most obvious. the annual and every seasonal average temperature are in a low period from the 1960’s to 1990’s in Liupanshui. The temperature increases obviously since 1990’s.the annual average temperature mutation happened in 1999. The Spring, summer, autumn and annual precipitation have the slight decrease trend,but the winter precipitation shows an increasing trend. Precipitation mainly focuses on from May to September,precipitation was the most in summer and the least in winter.The number of hours of sunshine in every year and season showed a decreasing trend, and the number of hours of sunshine in summer decreased more significantly. More hours of sunshine in spring and summer and the least in winter. |
| Key words: Liupanshui, temperature , precipitation;and sunshine;time, Mann - Kendall mutations |
