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搜集到1368-1911年苏沪浙地区风暴潮记录2119条,以此为基础,重建区域历史风暴潮发生的时间序列与空间分布。从年内分布情况看,苏沪浙地区历史风暴潮主要发生在6-10月,其中7-9月占80%,8月为全年最高值,占37%。68.56%的历史风暴潮发生在农历朔望日前后,其中发生在朔日前后(农历二十七至次月初四)的占35.57%,发生在望日前后(农历十三至十九)的占32.99%。小波分析结果显示:风暴潮年际变化时间序列存在54 a、30 a、17 a周期。历史风暴潮引起的海侵多发生在沿海地区,苏北地区历史风暴潮海侵淹没界线达4 m高程,长三角地区历史风暴潮海侵淹没界线达5 m高程,杭州湾沿岸、浙东沿海地区则分别达5 m和6 m高程。
A total of 2119 storm surge records were collected from the Soviet Union, Shanghai and Zhejiang regions from 1368 to 1911. Based on this, the time series and spatial distribution of historical storm surge in the region were reconstructed. According to the distribution of the year, the historical storm surges in the areas of Shanghai, Shanghai and Zhejiang Province occurred mainly in June-October, of which 80% occurred in July-September and the highest value in the whole year in August, accounting for 37%. 68.56% of the historical storm surge occurred after the Lunar New Year, with 35.57% occurring before and after the Lunar New Year (Lunar New Year’s Day 27 to the first day of the fourth day), accounting for 32.99% of the total (around 13 to 19 Lunar New Year). The results of wavelet analysis show that the interannual time series of storm surge have 54 a, 30 a and 17 a periods. The transgression caused by historical storm surges mostly occurred in the coastal areas. The historical storm surges in northern Jiangsu were submerged by the 4 m elevation of the sea and the inundation of the historical storm surge in the Yangtze River Delta reached a height of 5 m. The coast of Hangzhou Bay and the coastal areas of eastern Zhejiang The area is 5 m and 6 m respectively.