安顺市近57年四季气温和降水变化特征
Characteristics of Temperature and Precipitation Change in the Last 57 Years in Anshun City
中文摘要：
利用安顺市6个县站1960—2016年月平均气温和降水观测资料，通过趋势分析、滑动平均、小波分析等方法分析四季气温、降水变化特征。结果表明：近57年，安顺市四季气温，除春季升温不明显外，其余三季均呈现明显上升趋势；除夏季气温存在区域差异外，其余三季气温呈全区一致变化特征；全市春、秋以及冬季降水呈减少趋势，夏季降水市西北部减少，其余呈弱增多趋势。此外，安顺市倒春寒呈明显年代际变化特征。
中文关键词：
气温，降水，变化，小波分析
KeyWords：
temperature, precipitation, change, wavelet analysis
Abstract：
Based on the observational data of monthly average temperature and precipitation at six county stations in Anshun, the characteristics of seasonal temperature and precipitation change were analyzed by using trend analysis, sliding average and wavelet analysis. Results show that in recent 57 years, the temperature in Anshun showed a significant upward trend in summer, fall and winter. Temperature change in summer had regional differences, while temperature in spring, fall and winter changed consistently across the regions. Precipitation was decreasing in spring, fall and winter. Precipitation decreased in the northwest of Anshun and the other regions showed a weak increase trend in summer. In addition, “Late Spring Coldness” showed obvious interdecadal change characteristics.