Forecasting of Damage Level of Maritime Structures Caused by Typhoon 9918 Based on Improved CP Method

Due to the storm surge and wind waves, Typhoon 9918 caused enormous damage to maritime structures. In this paper, the Improved Central Pressure (CP) Method is used to estimate the damage level of maritime structures along the coast caused by a typhoon. Based on 74 previous typhoons, the Improved Central Pressure Method utilizes an index that determines the vulnerability of the coast to a typhoon with a specified path. The path of Typhoon 9918 as determined from the location and the direction of the typhoon at a latitude of 30° N. The vulnerability index of maritime structures is calculated by the path of the typhoon and the coastline. The damage level is estimated by using the index of this vulnerability and the central pressure of the typhoon at a latitude of 30° N. Based on the results, the Improved Central Pressure Method can be used to estimate the damage level of maritime structures that will occur along the coast before a typhoon strikes.