摘要
选取德州地区实测的月平均降水、气温资料,利用降水不均匀系数、距平分析法、五年滑动平均法、小波分析法及相关水文统计学等一系列方法,对该地区降水量、气温特征及相应的变化趋势进行了研究分析。计算结果表明,德州地区年均降水量为560.2mm,主要集中于汛期6～9月;年及夏、秋、冬季降水量在1950～2010年整体呈现下降趋势;气温在1951～2010年整体呈现上升趋势,气温倾向率达0.176℃/10a,上升趋势明显,且与降水量的整体趋势相反。
The asymmetrical coefficient of precipitation, anomaly analytical method, five points moving average meth- od, wavelet analysis and related hydrology statistical method are adopted to analyze the characteristics and variation trend of precipitation and air temperature based on the observed data in Dezhou region. The results show that ttle average yearly precipitation of Dezhou region is 560.2ram; it mainly centralized in flood period between June and September; the yearly and seasonal （except Spring） precipitation during 1950-2010 appears downward trend as a whole; The average yearly tern perature during period 1951-2010 appears upward trend as a whole; the rate of temperature tendency is 0. 176 ℃/10a with an opposite tendency of precipitation.
出处
《水电能源科学》
北大核心
2012年第8期13-15,共3页
Water Resources and Power
关键词
降水
气温
变化趋势
德州市
precipitation
air temperature
variation trend
Dezhou Cily
