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After construction of the submerged breakwater, the shoreline changed from year 2010 to year 2016 is shown in figures (13). Also the table 2 describes the rate of changes of the shorelines from year 2010 to 2016. The positive sign means accretion and the negative sign means erosion. The figure shows that the accretion in Miami zone was up to 10 m/year from the base line and about 20 m/year in Asafra to Mandara zone. But in Montaza area the erosin was about 40 meter/year.

Table 2 After construction of the submerged breakwater, the shoreline changed from year 2010 to year 2016 is shown in figures (13). Also the table 2 describes the rate of changes of the shorelines from year 2010 to 2016. The positive sign means accretion and the negative sign means erosion. The figure shows that the accretion in Miami zone was up to 10 m/year from the base line and about 20 m/year in Asafra to Mandara zone. But in Montaza area the erosin was about 40 meter/year.

Related Figures (17)

Alexandria's beaches are the main summer resort of the country and are considered one of the most notable summer resorts in the Middle East. Alexandria beaches stretch for 140 km along the Mediterranean Sea, from Abu Qir, in the east to Al-Alamein and Sidi Abdul Rahman, in the west as shown in Figure (1). These attributes make Alexandria a favorite tourist spot; more than one million local summer visitors together with about 4.5 million residents enjoy the summer season at Alexandria every year [Frihy et al. , 1996]. Figure: (1). Alexandria map
Alexandria's beaches are the main summer resort of the country and are considered one of the most notable summer resorts in the Middle East. Alexandria beaches stretch for 140 km along the Mediterranean Sea, from Abu Qir, in the east to Al-Alamein and Sidi Abdul Rahman, in the west as shown in Figure (1). These attributes make Alexandria a favorite tourist spot; more than one million local summer visitors together with about 4.5 million residents enjoy the summer season at Alexandria every year [Frihy et al. , 1996]. Figure: (1). Alexandria map
Table (1) Average estimated displacement due to wave run-up, Soliman and Reeve 2007 2.3. Miami to Montaza beach
Table (1) Average estimated displacement due to wave run-up, Soliman and Reeve 2007 2.3. Miami to Montaza beach
Soliman and Reeve 2007 studied the phenomenon of wave run-up at Alexandria numerically using the 2-D BWNM to estimate the wave run-up due to wave attack. The section has been chosen as shown in Figure (2). Table (1) presents the estimated horizontal displacement of shoreline due to wave run-up using the numerical simulation. The expected beach width which will be attacked by wave run-up ranges from 9.56 m to 13.83 m and 11.69 m on average.
Soliman and Reeve 2007 studied the phenomenon of wave run-up at Alexandria numerically using the 2-D BWNM to estimate the wave run-up due to wave attack. The section has been chosen as shown in Figure (2). Table (1) presents the estimated horizontal displacement of shoreline due to wave run-up using the numerical simulation. The expected beach width which will be attacked by wave run-up ranges from 9.56 m to 13.83 m and 11.69 m on average.
The installation of the emerged breakwater in 2005 led to a rapid deterioration in water juality as can see from Figure (4). [El-Sharnouby, B., & Soliman, A. 2011].
The installation of the emerged breakwater in 2005 led to a rapid deterioration in water juality as can see from Figure (4). [El-Sharnouby, B., & Soliman, A. 2011].
Figure (11): comparison between the least median of squares rate and the linear regression rate
Figure (11): comparison between the least median of squares rate and the linear regression rate
[he rate of changes of the shoreline before construction of the breakwater (from year 2000 to year 2006) is shown in figures (12). The figure shows that the accretion in Miami zone was up to 20 m/year from the base line and about 15 m/year in Mandara area. But in Montaza area the Srosin was about 10 m/year.
[he rate of changes of the shoreline before construction of the breakwater (from year 2000 to year 2006) is shown in figures (12). The figure shows that the accretion in Miami zone was up to 20 m/year from the base line and about 15 m/year in Mandara area. But in Montaza area the Srosin was about 10 m/year.
Figure (14): Comparison between current study and A.Soliman et al. ,(2014
Figure (14): Comparison between current study and A.Soliman et al. ,(2014
Table 3: Comparison between current study and A.Soliman et al. ,(2014
Table 3: Comparison between current study and A.Soliman et al. ,(2014
each transect, (b) is y-intercept (the value of y when x=0) is calculated by the equation [y- intercept (b) = (mean of y) - (mean of x) * m]. Examples of the estimate of the future scenarios that are obtained using the prediction model for all transects lines with continuous accretion and erosion are shown in Table (4) . Also, the estimated position of years 2030and 2050 shorelines presented in figure (15). It was observed that during 2016-2050 the accretion distance along the coastline of Miami to montaza beach was varied between (5- 10) m. Also the predicted shoreline indicates that the erosion will take place in the Asafra beach with very small distance varied between (5) m.
each transect, (b) is y-intercept (the value of y when x=0) is calculated by the equation [y- intercept (b) = (mean of y) - (mean of x) * m]. Examples of the estimate of the future scenarios that are obtained using the prediction model for all transects lines with continuous accretion and erosion are shown in Table (4) . Also, the estimated position of years 2030and 2050 shorelines presented in figure (15). It was observed that during 2016-2050 the accretion distance along the coastline of Miami to montaza beach was varied between (5- 10) m. Also the predicted shoreline indicates that the erosion will take place in the Asafra beach with very small distance varied between (5) m.
Table (4): Examples on the future estimates for shoreline retreat.
Table (4): Examples on the future estimates for shoreline retreat.
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