Survey of coastal morph dynamics and the cyclical changes in northern Oman (Tidal wetlands east coast of the Strait of Hormuz)

Since the Wetlands and river and sea are often influenced by variables and changes in ocean dynamics and their impact on river، Recognition these effects lead to a better understanding of planning for maintenance، it will achieve. Arrows or sand dams in front of all the frontal delta and tidal wetlands area are located on the northern coast of Oman. In this study، the hydrodynamic processes of Oman and the processes affecting the environment in times of drought such as the amount of sediment transported by rivers to the coast in Changes periodically، and the arrows in the holy mountain of sand Chalabi in northern Oman has been studied For this purpose، the time period of use of satellite images with the use of Arc GIS software and Ilwis is analyzed. The results show that the morphology of the coastline of this region، the displacement along the coastline is more than other coastal areas. Periodic variation showed the greatest growth in longitudinal sand arrows 11 (from 1371 to 1382) was more than 3300 meters، while in a period of 36 years (from 1335 to 1371) of sand arrows are only 1،500 m be. This growth leads to changes in wetlands and a lagoon bordering the sea in this area has been Chalabi. Intermittent cyclical changes in the tide and waves as well as changes in river discharge and sediment load of streams input to estuaries and river flow changes with arrows moving sand causes these changes and consequently changes in wetlands has been.