Using the appropriate spectral formulation, which in most cases includes expressions for wind velocity variations with elevation, equation (18) enables one to simulate the wind time history. This can then be combined with drag and area coefficients for the structure in question, e.g., the exposed profile area of the ship, and an approximation to the time-dependent wind heeling moment computed. This is most effectively used when embedded in a time-domain simulation of the vessel or platform response. Such a procedure is suggested to be used in conjunction with the American Bureau of Shipping Dynamic Response Based Intact Stability Criterion.