【摘要】 利用哈尔滨市１９５１ ～１９９８ 年候降水量资料，用候降水量突变划分汛期，并对哈尔滨市汛期特征进行分析。哈尔滨市汛期可划分为：提前型、落后型；偏长型，偏短型；连续型、分段型。平均入汛期为６ 月２１ ～２６ 日，最早入汛期为５ 月２１ ～２５ 日，最晚入汛期为７ 月２１ ～２６ 日；平均出汛期为８ 月２６～３１ 日，最早出汛期为７ 月６ ～１０ 日，最晚出汛期为１０ 月１１ ～１５ 日。平均汛期长度为６０ｄ ，最长汛期为１００ｄ ，最短汛期为２０ｄ 。更多还原

【Abstract】 Using the data from 1951-1998 pentad precipitation of Harbin and pentad precipitation accident,the pattem of the flood season is divided and the characteristics for the flood season is analysed.The flood season in Harbin is separated into early pattem,backward pattem,longer pattem,shorter pattem,persisterit pattem and discomected pattem.The mean date of the flood season beginning is June 21 to 26,the earliest of the flood season beginning is May 21 to 25,the lastest one is July 21to 26.The mean date of the flood season end is august 26 to 31,the earliest of it is July 6 to 10,the lastest one is October 11to 15.The men length of the flood season is sixty days.The longest is one hundred days,and the shortest is twenty days.更多还原