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受2017年第10号台风“海棠”减弱低压和副热带高压共同影响,8月2日20时至5日8时,辽宁西部、东南部出现特大暴雨,全省气象观测站中降水量大于250 mm的有68个站,全省评估为一级暴雨灾害,属最严重级别。受此影响,辽西沿渤海岸及辽东沿黄海岸大型河流发生中小洪水,中小河流发生大洪水或特大洪水。从雨情、水情入手,分析防御此次特大暴雨洪水的方法方式,总结经验教训,为今后暴雨洪水防御工作提供借鉴。
Affected by the combination of weakened low pressure and subtropical high caused by Typhoon No. 10 and Begonia in 2017, heavy rainfall will occur in the western and southeastern Liaoning provinces from 20:00 on August 2 to 8:00 on the 5th. The precipitation in the provincial meteorological stations is greater than There are 68 stations at 250 mm. The province is rated as a first-level storm disaster and is the most serious one. Affected by this, small and medium-sized floods occur along the coasts of the Bohai Sea in the western Liaoning and large rivers along the Yellow Sea coast in Liaodong. Large or medium-sized floods occur in small and medium-sized rivers. Beginning with the rain conditions and water conditions, this paper analyzes the ways and means of preventing floods and floods, summarizes the experience and lessons, and provides reference for the future storm flood prevention work.