THE EFFECT OF TROPICAL CYCLONES’ TRANSLATION SPEEDS AND LANDFALL ANGLES ON MAXIMUM SURGE HEIGHTS ALONG IDEALIZED COASTS

Abstract

Global warming has known to alter the cyclonic translation speed (TS) in the past, for instance, a slowdown trend of TS in the Northwest Pacific region. Thus, the importance of TS along with landfall angle (LA) has been examined over the coast of Louisiana (Rego, 2009). Not only these cyclone’s characteristics but also the geometries that the cyclone is traveling over are found to be crucial to the development of storm surge. Meanwhile, previous studies mainly focus on one or two individual characteristics in specific sites, which made their conclusions limitedly understood. Therefore, this study aims to generalize the synthetic effects of TS, LA, and coastal geometries on a maximum surge height (MSH) along the coast through the numerical simulations of a series of idealized scenarios.