Seyed Taleb Hosseini - Iranian National Institute for Oceanography and Atmospheric Science
Seyed Masoud Mahmoudof - Iranian National Institute for Oceanography and Atmospheric Science,

The interaction of the astronomical tide and shallow water components results in tidal asymmetry. In such conditions, if the ebb duration (the time period betweencrest and next trough) is longer than the flood duration, the mass continuity dictates higher velocities during flooding, and the condition is referred to as flooddominance .Advancing (delaying) of low water (high water) results in the opposite pattern, known as ebbdominance . A representative parameter to describe the tidal asymmetry in shallow estuaries was suggested based on estuarine geometry