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利用松花江、嫩江流域的气象和水文资料 ,讨论了该流域降水对水位变化的影响。结论指出 ,松花江、嫩江流域汛期水位变化与流域内的降水有密切的关系 ,1 998年夏季特大洪水主要是由嫩江流域降水异常偏多引起的 ,逐日水位变化取决于上游水位和临近流域的降水情况。
Based on the meteorological and hydrological data of Songhua River and Nenjiang River basin, the effects of precipitation on water level change are discussed. The conclusion shows that the change of water level in the flood season of Songhua River and Nenjiang River Basin is closely related to the precipitation in the basin. The extraordinary flood in summer of 1998 caused by the abnormally high precipitation in Nenjiang River Basin. The daily water level changes depend on the upstream water level and the adjacent watershed Precipitation situation.