Impact of Typhoon Path on Storm Surge in Shandong Peninsula

To investigate the effect of typhoon path translation on storm surge augmentation, the storm surge during Typhoon 1909 Lekima in the East China Sea is simulated using Delft 3D. The model sets up three scenarios to analyze the path's effect on storm surge in the Shandong Peninsula Sea by shifting the typhoon path to the east and west. Results show that the areas of maximum storm surge in each scenario are located on both sides of the typhoon path and shift along with its movement. When the typhoon path shifts eastward, the maximum storm surge intensifies at Zhifu Island station 8 hours earlier. Conversely, a westward shift in the typhoon track leads to a maximum storm surge increase at Shidao Island station 12 hours earlier. Other scenarios exhibit minimal deviation from the original route. Typhoons penetrating deep inland can induce substantial storm surges, with the most extensive surge area situated in the western part of the Shandong Peninsula.