1949-2020年山东省风暴潮灾害时空分布特征分析

Temporal and spatial distribution patterns of storm surge disaster in Shandong Province from 1949 to 2020

利用1949-2020年山东省风暴潮灾害资料,分析了山东省风暴潮灾害时空分布特征。结果表明:1949-2020年山东省共发生有详细记录的风暴潮灾害54次,从时间分布来看,4月是风暴潮造成死亡(含失踪)人口最多的月份,8月是发生风暴潮次数最多,造成直接经济损失最重的月份。从空间分布来看,潍坊市发生风暴潮灾害次数最多,日照市发生台风风暴潮次数最多,死亡(含失踪)人口数最多,烟台市直接经济损失最重。整体上,山东省风暴潮灾害发生次数有增加趋势,死亡(含失踪)人口呈现下降趋势,灾害造成的直接经济损失存在高低振荡趋势,灾害风险仍不容忽视。分析结果可为沿海各地市开展针对性风暴潮灾害防御工作提供科学依据。

Based on the data of storm surge disasters in Shandong Province from 1949 to 2020,the spatial and temporal distribution characteristics of storm surge disasters in Shandong Province are analyzed.The results show 54 recorded storm surge disasters in Shandong Province from 1949 to 2020.According to the time distribution,April has the largest number of deaths(including missing).August has the largest storm surge disasters and the most direct economic losses.Regarding spatial distribution,Weifang has the most storm surge disasters,Rizhao has the most storm surge disasters,the largest number of deaths(including missing persons)and the largest direct economic losses in Yantai.On the whole,the number of storm surge disasters in Shandong Province has an increasing trend.The death(including missing persons)population has a decreasing trend,and the direct economic losses caused by the disasters have a high and low oscillation trend.The analysis results can provide a scientific basis for preventing storm surge disasters in coastal cities.