The results calculating the height of storm surge as performing the numerical model of storm surge(POM) experiment and analyzing and reviewing the wind field and the path after selecting the typhoons of which the dimension of damage were high and brok...
The results calculating the height of storm surge as performing the numerical model of storm surge(POM) experiment and analyzing and reviewing the wind field and the path after selecting the typhoons of which the dimension of damage were high and broke the disaster records among the past typhoons occurred at the coast sea area of Jeju Island.
Of the typhoons for 16years(1987~2003) influencing our country, those caused the relatively great damage to Jeju Island were 8 (Maemi, Rusa, Prapiroon, Olga, Yanni, Janis, Gladys, Thelma). The height of storm surge as the result that simulating the storm of Jeju and of Seogwipo Port about these typhoons was realized to be relatively in accordance with the observed values. And the occurring times of the heights of storm surge were various but generally appeared a little bit later than the observed times.
At the coast sea area of Jeju Island, Jeju Port showed higher height of wave than Seogwipo Port and the heights of wave were not over 1m at both Juju Port and Seogwipo Port. Of the selected 8 typhoons, Maemi showed 77.97cm of the height of storm surge at Jeju Port as the highest and Janis appeared 5.3cm at Seogwipo Portas the lowest. The Max. heights of storm surges at the coast of Jeju Island by each typhoons were appeared as 77.97cm for Maemi, 62.9cm for Thelma, 59.5cm for Rusa, 45.38cm for Yanni, 33.2cm for Prapiroon, 32.2cm for Olga, 24.15cm for Gladys and 6.44 for Janis.
That Jeju Port appeared the higher height of storm surge than Seogwipo port is considered to be resulted from the path of typhoon, the topography and the depth of water, the waves, the seiche, sea state, etc. And that the height of Jeju Port and Seogwipo Port were appeared lower than the West coast or the South coast is why the coast line of Jeju Island is relatively simple, the depth of water of the coast sea area is relatively deep comparing to the South coast and the shape and the topography is V-letter shape or there is no topography where the long bay is developed.
These study results can contribute to the forecast of flooded district of the coast region of Jeju Island in the future and the establishment of the coast disaster prevention plan like the drawing up of storm surge map, etc. For the minuter calculation and forecast of the height of storm surge, the simulations considering the minuter depth of water of coast sea area, the data of topography, the wave and the sea state are required.