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1983年汛期的水、雨情基本特点是:降雨次数频繁,雨量偏丰,强度不大。从降雨的时间分布看,前期(7～8月)大部降雨较常年偏少,后期(9～10月)降雨普遍偏多;从地区分布看,山陕区间降雨明显偏少,渭河中下游明显偏多。这样的降雨情况,造成今年水多、沙少、中常洪水持续时间长,尤其入秋后4000秒立米左右流量持续达40天,三门峡库区和黄河下游河道发生较大幅度的冲刷。
The flood and rainfall conditions in the flood season of 1983 are as follows: frequent rainfalls, excessive rainfall and little intensity. From the time distribution of rainfall, most of the rainfall in the early period (July-August) was less than that of normal years, and the rainfall was generally more in the later period (September-October). From the regional distribution, the precipitation in the Shanshan area was obviously less than that in the middle and lower reaches of the Weihe River Obviously more. This kind of rainfall has caused a long period of floods, low sands and frequent floods this year. In particular, flows of about 4000 seconds after autumn fall lasted for 40 days, and the Sanmenxia reservoir area and the lower reaches of the Yellow River have experienced a drastic erosion.