１９９８～１９９９年度黄河内蒙古河段封河晚，封河时水位高，槽蓄水量大，封冻冰盖薄，分段开河，凌峰流量小。根据万家寨水库首次防凌调度运用中暴露出的问题，对上中游水库防凌联合调度提出了建议。 During the period from 1998 to 1999, when the closure of the Yellow River in Inner Mongolia was closed, the water level in the closure river was high and the water storage capacity was large. The frozen ice sheets were thinly covered and the sections were opened. The traffic volume of Lingfeng was small. According to the problems of Wanjiazhai Reservoir’s first deployment of anti-flood control, suggestions are put forward for the joint prevention and control of reservoirs in the upper and middle reaches.