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<p>Sedimentation at ports is a prevalent and vexing issue worldwide. The port entrance is the focal point of this sedimentation, which makes ship passage challenging and dangerous. Dredging is required annually to maintain the port’s navigation depth and remove accumulated sediments, but this process is costly and affects the port’s economic performance. The Egyptian government is making significant efforts to address sedimentation at Damietta Port and expand the port’s capacity to handle larger ships. Elkotby et al.’s (Remote Sens Appl Soc Environ 36:101301, 2024a), (Reg Stud Mar Sci 78:103791, 2024b) study submission covered several anticipated scenarios, ultimately aiming to reach the port’s future state. The current study initially performed a numerical simulation over five years using the coastal modeling system (CMS) to evaluate the port’s conditions after extending the eastern and western breakwaters and implementing a new western breakwater. It considered three situations: the first situation involved taking no action, the second examined the port’s condition after implementing planned structures, including deepening the navigation channel to 19 m, and the third scenario represented the final state after introducing a 17-m-deep navigation basin between the existing western breakwater and the new western breakwater. This simulation aimed to estimate long-term morphological changes, improve understanding of sedimentation issues within the port, and address erosion problems in the surrounding areas. The Findings reveal that the sediment volume grows annually, and after a five-year simulation, the sediment volume increases by 310.35%. A one-year simulation was conducted to look into how the sand nourishment system on the port’s eastern side would affect the stability of the four Y-groins and address the erosion issues in that region and compared it to the current implementation situation. Nourishment of using 100,000 m<sup>3</sup> of sand west and 150,000 m<sup>3</sup> through groins) It is found to be a feasible approach for achieving sustainable, stable conditions along the coastline east of the port. Scenario 6, which is presently in execution, is a very effective option, based on our findings. The fruitful study’s outcomes might be practical, with the necessary adjustments, to other harbors all over the world.</p>

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Long term morphological variability along coastal zone (case study: Damietta harbor and its surrounding beaches)

  • 期刊论文

  • 发表日期：

    2026年3月13日

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  • May R. ElKotby,
  • Mahmoud El-Gamal,
  • Tharwat A. Sarhan

摘要

Sedimentation at ports is a prevalent and vexing issue worldwide. The port entrance is the focal point of this sedimentation, which makes ship passage challenging and dangerous. Dredging is required annually to maintain the port’s navigation depth and remove accumulated sediments, but this process is costly and affects the port’s economic performance. The Egyptian government is making significant efforts to address sedimentation at Damietta Port and expand the port’s capacity to handle larger ships. Elkotby et al.’s (Remote Sens Appl Soc Environ 36:101301, 2024a), (Reg Stud Mar Sci 78:103791, 2024b) study submission covered several anticipated scenarios, ultimately aiming to reach the port’s future state. The current study initially performed a numerical simulation over five years using the coastal modeling system (CMS) to evaluate the port’s conditions after extending the eastern and western breakwaters and implementing a new western breakwater. It considered three situations: the first situation involved taking no action, the second examined the port’s condition after implementing planned structures, including deepening the navigation channel to 19 m, and the third scenario represented the final state after introducing a 17-m-deep navigation basin between the existing western breakwater and the new western breakwater. This simulation aimed to estimate long-term morphological changes, improve understanding of sedimentation issues within the port, and address erosion problems in the surrounding areas. The Findings reveal that the sediment volume grows annually, and after a five-year simulation, the sediment volume increases by 310.35%. A one-year simulation was conducted to look into how the sand nourishment system on the port’s eastern side would affect the stability of the four Y-groins and address the erosion issues in that region and compared it to the current implementation situation. Nourishment of using 100,000 m3 of sand west and 150,000 m3 through groins) It is found to be a feasible approach for achieving sustainable, stable conditions along the coastline east of the port. Scenario 6, which is presently in execution, is a very effective option, based on our findings. The fruitful study’s outcomes might be practical, with the necessary adjustments, to other harbors all over the world.