Mean Tidal Water Elevation
Input the mean water elevation of the storm tide. The fluctuating tidal water elevation is modeled as a cosine function with characteristics of a tidal range, amplitude and period. A typical high tide elevation for the 100-year storm tide in the Chesapeake Bay is 7.8 feet. If a low tide elevation of 0.0 feet is assumed for the analysis, the tide range is 7.8 feet, the mean tide water elevation is 3.4 feet ( ½ of 7.8 feet), and the tidal amplitude is 3.4 feet, the difference between high tide elevation and the mean tide elevation.