extensive low-lying areas surrounding them which may be subject to extensive flooding during severe storm conditions. Also, these basins are
usually shallow, and on the windward side of the basin substantial bottom
areas can become exposed. Thus, during the passage of a storm System,
many semienclosed basins hâve time-dependent moving boundaries. The
water présent at any time in a bay or estuary is also dépendent upon the
sea State because of the interrelation between these two bodies of water.
Because of the above characteristics of semienclosed basins, a simplified
approach does not usually provide a satisfactory estimate of water motions
and methods based on full two-dimensional dynamic approaches should be
employed.
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