The choice of indicators and their weighting are always subjective arguments. I can help you to make the index. You can reach me at [email protected]

As Alam said, choosing CVI indicators is subjective and based on the study scope, whether the focus on socioeconomic factors or physical factors. However, some indicators, in my opinion, are very essential, such as the coastal slope, elevation and land use-land cover.

Anyway, CVI studies usually involved about four to eight factors, and weighting or evaluating these factors is done using spatial tools available in GIS.

I hope you find my article useful in this matter:

Article Vulnerability of Kuwait coast to sea level rise

Best wishes,

Follow this paper

I also support the answers added Alsahli and Moniru Alam. The CVI factors are subjective.

First decide the influencing factors on coast for mapping CVI