新郑市1961—2010年降水变化特征分析  

The Analyzes of Precipitation Change for 1961—2010 Year in Xinzheng

作　　者：赵艳梅 查菲娜[2] 闫伟杰 吕淑敏 王勃 

机构地区：[1]新郑市气象局,河南新郑451100 [2]郑州市气象局,郑州450048

出　　处：《河南科学》2011年第8期927-929,共3页Henan Science

摘　　要：以郑州市较有代表性的新郑市降水变化为研究对象,对年内降水分配、降水年代际变化及季节间变化进行分析,结果表明:一年当中,1—7月份降水呈逐渐增多趋势,7月份增至峰值,12月减至最少.其中,汛期(6—8月)平均降水量占年均降水量的54%;年代间,以20世纪60年代偏多,70年代偏少8,0年代正常9,0年代最少,进入2001年后则又明显偏多;50年来年平均降水量整体呈下降趋势,且表现出约20年的周期振荡.In order to grasp the Zhengzhou precipitation change characteristic,has the representative Xinzheng precipitation change take Zhengzhou as the object of studyt,he precipitation assignst,he precipitation age border change and the precipitation season to the year in changes carries on the analysisf,inally indicated：during one yeari,n January to July the tendency of precipitation assume increases graduallyi,n July increases to the peak valuei,n December reduces to few,and in the flood season（in June to August）the average precipitation accounts for the yearly average precipitation 54 %;During the aget,he precipitation was many by the 1960 s,was few in the 70 si,n the 80 s was normali,n the 90 s were leasta,fter entering 2001a,lso obviously was many;50 average precipitation wholes assume the declining trend year after yeara,nd displays the approximately 20 year periodic oscilation.

关 键 词：新郑市 降水 特征分析 

分 类 号：P468.024[天文地球—大气科学及气象学]