An inter-comparison of coastal vulnerability assessment methods

Abstract

In this paper a Coastal Vulnerability Assessment method (CVA) was compared with the wellestablished CVI method in order to obtain validation data and discuss the different results. The structure of the proposed method relies upon a key parameter, known as impact index Ii, which accounts for wave climate, bathymetry and sediment data and depends on the wave run-up height, the seasonal and long-term erosion, and the efficiency of coastal protection structures. The comparison between this CVA and the existing CVI method was done on a test site already examined. The calculation of the different contributions of each method was transformed in appropriate vulnerability scores in order to examine and discuss the different results.