Fig. 2: Standardized β coefficients denoting relative importance of interaction terms on storm-tides.

Relative importance of various nonlinear interaction terms on storm-tides based on the regression analysis described by Eq. (2). Positive (negative) β coefficients indicate that a particular interaction term increases (decreases) storm-tides. The magnitude of β provides a sense of the relative importance of an interaction term. Interaction terms are: a Wave-setup; b tide-surge; c river-surge; d mean sea level-surge; e tide-river; f tide-mean sea level; g river-mean sea level.