吉林水利
吉林水利
길림수리
JI LIN WATER RESOURCES
2013年
12期
62-66
,共5页
嘎呀河流域%Mann-Kendall检验%变化趋势%突变
嘎呀河流域%Mann-Kendall檢驗%變化趨勢%突變
알하하류역%Mann-Kendall검험%변화추세%돌변
Gaya River Basin%Mann-Kendall test%change trend%analysis of abrupt change
基于Mann-Kendall检验方法，对嘎呀河流域降水量数据进行分析，发现年降水量总体呈现下降趋势，在研究时段内年径流量各雨量站均存在突变点，就流域而言，1985年为整个流域降水量的突变点。汛期降水量整体呈现下降趋势，非汛期降水量整体呈现上升趋势，老庙、天桥岭、汪清、仲坪和西大坡站汛期降水量变化对年降水量变化具有决定性作用。该流域汛期降水量突变点为1982年，非汛期无明显突变点。
基于Mann-Kendall檢驗方法，對嘎呀河流域降水量數據進行分析，髮現年降水量總體呈現下降趨勢，在研究時段內年徑流量各雨量站均存在突變點，就流域而言，1985年為整箇流域降水量的突變點。汛期降水量整體呈現下降趨勢，非汛期降水量整體呈現上升趨勢，老廟、天橋嶺、汪清、仲坪和西大坡站汛期降水量變化對年降水量變化具有決定性作用。該流域汛期降水量突變點為1982年，非汛期無明顯突變點。
기우Mann-Kendall검험방법，대알하하류역강수량수거진행분석，발현년강수량총체정현하강추세，재연구시단내년경류량각우량참균존재돌변점，취류역이언，1985년위정개류역강수량적돌변점。신기강수량정체정현하강추세，비신기강수량정체정현상승추세，로묘、천교령、왕청、중평화서대파참신기강수량변화대년강수량변화구유결정성작용。해류역신기강수량돌변점위1982년，비신기무명현돌변점。
Analysis of precipitation data of Gaya River Basin for using the methods of Mann-Kendall test ,the results show that the annual precipitation was in a overall decrease trend.Every rainfall station exists in a abrupt change in annual precipitation during the studied period.For the entire basin ,the abrupt changes occur in 1985.As a whole,precipitation of flood season presents downward trend and precipitation of non-flood sea-son presents upward trend.Precipitation of flood season has a decisive role on annual precipitation in Laomiao rainfall station,Tianqiaoling rainfall station,Wangqing rainfall station,Zhongping rainfall station and Xidapo rainfall station.A abrupt change in precipitation of flood season occur in 1982 ,and precipitation of non-flood has no obvious abrupt change.
