Response of typhoon-induced water level to different typhoon tracks in Haizhou bay

Typhoon-induced water level in response to different typhoon tracks in Haizhou bay was investigated by the tidal data from 1997 to 2007. Results of the study show that typhoon passing over Haizhou bay can be divided into three classes according to their tracks. Under different tracks of typhoon, the typhoon-induced water level varies with the magnitude and duration. The non-tidal water level increase significant during class I and class II tracks, while the typhoon-induced water level during class III is less regular with relatively uniform amplitude. The duration. of the typhoon-induced water level of class III is the longest among the three types.