Using the wave and longshore current data which collected by the coastal Research Institute during the period from Aug. 1997 to Dec. 1998 along Damietta area, the sediment transport rate is estimated at three places, east, west of Damietta harbor and west of Damietta mouth using two common models and field measurements. The results revealed that:
The predominant direction of sediment transport takes place eastward. The gross transport is very large during winter, while it is low during spring and summer seasons. The average sediment transport rate is about 543 x 103 m3/year. The results of streamer sediment traps showed that, the sediment flux and sediment transport rate density have their maximum value at the east of study area than the western side. Using the fluorescent tracer grains, the result showed that, the amount of sediment transport moving on the eastern side is more than at western side of study area. Also, the percentage of occurrence of sediment transport from onshore to offshore during spring is more than that occurs in the autumn.
In addition, the comparison between the different methods of estimation of sediment transport rate was done. |
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