Storm Surge Potentials Of Selected Philippine Coastal Basins

Catalino P. Arafiles, Catalino P. Alcances, Jr.

A historical review of storm surges in the Philippines for the period 1897-1975 reveals certain areas inundated by storm surges. To identify storm surge potentials of Philippine basins, peak storm surges were estimated with the use of a simple empirical relation requiring only the knowledge of three meteorological parameters and the basin shoaling factor. The shoaling factor for each basin was computed by the use of a set of regression equations. Comparisons of actual observed storm tide and computed storm surge shows that the effect of coastal configuration and astronomical tide significantly affect the magnitude of the total storm tide.