Abstract

It has been well understood that almost all coasts experience permanent and transient changes due to water waves and other causes in different times. Build-up and erosion of the dunes in the vicinity of the shoreline is a morphodynamic process made by the cycle of windblown fine sediments and wave surges. This phenomenon has been investigated and the beach profile change has been represented by a mathematical morphodynamic model. This model has been constituted based upon the most recent work of Hanson et al. (2010) but with an additional term to consider the steady-state cross-shore sediment transport. A closed form solution to the morphodynamic model has been presented and applied to the northern coastline of the Oman Sea, located in the southern part of Iran.

Key words: Coastal, shoreline, sediment transport, beach, morphodynamic, dune, berm.