ABSTRACT Typhoon Faxai caused severe damages along the western shore of Tokyo Bay, Japan in September 2019. Retaining a relatively small radius of maximum wind, Faxai passed across the center of Tokyo Bay and caused intensive wind and waves. While the sea level anomaly recorded at several tide gauge stations along Tokyo Bay were at most 1 m, and no significant surge-induced inundation was found, locally concentrated damages and wave-induced hazards were observed around Yokohama, on the middle-western shore of Tokyo Bay. The observed inundation height around Yokohama was TP (Tokyo Peil) 4.2 m on average, and the highest runup, TP 10.8 m, was observed at a small hill directly behind the seawall in Fukuura, Yokohama. The estimated wave overtopping directions at each location varied from the northeast to southeast, and no clear correlation was found between the wave overtopping directions and the extent of observed coastal hazards. Based on these findings and investigations of recorded data such as wind and waves, it was deduced that locally concentrated damages and hazards around the middle western shore of Tokyo Bay may be explained by the unique features of a relatively compact Faxai and the topographical characteristics of Tokyo Bay.

中文翻译：

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2019年日本东京湾西岸台风法茜造成局部集中灾害的事后调查

摘要 台风法茜于 2019 年 9 月在日本东京湾西岸造成严重破坏。法茜保留了相对较小的最大风速半径，穿过东京湾中心并造成强烈风浪。虽然东京湾沿线的几个测潮站记录的海平面异常最多为 1 m，并且没有发现明显的涌浪引起的淹没，但在横滨中西部海岸观察到局部集中破坏和波浪引起的危害。东京湾。横滨附近观测到的淹没高度平均为 TP (Tokyo Peil) 4.2 m，而最高的洪水高度为 TP 10.8 m，在横滨福浦海堤正后方的一个小山丘上观测到。每个位置的估计波浪越过方向从东北向东南变化，没有发现波浪越过方向与观测到的沿海灾害程度之间存在明显的相关性。根据这些发现和对风浪等记录资料的调查，推断东京湾中西岸附近局部集中的破坏和危害可能是由于法西相对紧凑的独特特征和东京的地形特征湾。