滨州市1971～2005年降水量变化特征浅析  

Analysis on the Characteristics of Precipitation Variability from 1971 to 2005 in Binzhou

作　　者：夏兴生[1] 宋芙蓉[1] 董立峰[1] 

机构地区：[1]滨州学院建筑与城乡规划系,山东滨州256603

出　　处：《长江大学学报（自科版）（中旬）》2012年第6期5-9,4,共5页Journal of Yangtze University(Nature Science Edition)

基　　金：山东省教育厅科技计划项目(j08we67);山东省自然科学基金项目(ZR2011DQ018);滨州学院精品课程资助项目(bzxyjpkc200808)

摘　　要：利用滨州市1971～2005年的降水资料,采用统计法、降水倾向率、滑动平均等方法,对滨州市降水量特征分别从年代、季节、汛期3个时间尺度上进行分析。结果显示,滨州市35a年降水量呈现下降趋势(1.46mm/a)。四季降水变化差异明显,夏、冬季降水呈减少趋势,春、秋季呈增多趋势,其中夏季减少最明显(1.96mm/a),汛期降水减少趋势显著(2.19mm/a)。因此,滨州市降水的减少主要源于夏季或汛期降水减少的贡献。Based on the precipitation data from 1971 to 2005 in Binzhou,the characteristics of precipitation variability were analyzed from time,season and season temporal scales by statistical method,precipitation trend and moving average method.The results showed that the annual precipitation in Binzhou was decreasing(1.46mm/a ).Variation of seasonal precipitation had obvious differences:summer and winter precipitation was decreasing,spring and autumn presented a growing trend;The reduction of the summer was most apparent(1.96mm/a );The precipitation in the flood season decreased significantly (2.19mm/a ).Therefore,the decrease of precipitation mainly derived from reduction of the summer or the flood season precipitation in Binzhou.

关 键 词：降水量 变化特征 滨州市 

分 类 号：P426.6[天文地球—大气科学及气象学]