| Omran E. Frihy,Samir M. Nasr,Khalid Dewidar,Mohamed El Raey. 1994. Beach erosion along the coastline of Alexandria, Egypt. Acta Oceanologica Sinica, (2):243－251 |
| Beach erosion along the coastline of Alexandria, Egypt |
| Beach erosion along the coastline of Alexandria, Egypt |
| Received:January 28, 1993 Revised:July 25, 1993 |
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| Abstract: |
Long-term vacations in beach width of Alexandria Governorate have been analyzed using two sets of aerial photos taken in 1955 and 1983.The analysis reveals that a major part of most beaches has been subjected to coastal erosion except for only beeches.The estimated long-term rate of erosion is approximately 0.20 m/a.
El Maamoura beach, located east of Alexandria,is selected to evaluate seasonal variations.Sand volume losses are found to be 450 m3/(m·a) for the entire beach length (1.2 km).The annual sand transport by wind is estimated as about 37.7 m3.Subtracting this amount of sand from the net sand loss 450 m3/(cm·a) yields 412.3 m3/(cm·a) of eroded sand caused by the action of currents and waves. |
| 中文摘要: |
Long-term vacations in beach width of Alexandria Governorate have been analyzed using two sets of aerial photos taken in 1955 and 1983.The analysis reveals that a major part of most beaches has been subjected to coastal erosion except for only beeches.The estimated long-term rate of erosion is approximately 0.20 m/a.
El Maamoura beach, located east of Alexandria,is selected to evaluate seasonal variations.Sand volume losses are found to be 450 m3/(m·a) for the entire beach length (1.2 km).The annual sand transport by wind is estimated as about 37.7 m3.Subtracting this amount of sand from the net sand loss 450 m3/(cm·a) yields 412.3 m3/(cm·a) of eroded sand caused by the action of currents and waves. |
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