95
Conclusions
Coastal engineering is a multidisciplinary field focused on understanding the complex
interactions between waves, coastal structures, and the shoreline. It plays a crucial role in
designing ports, shore protection measures, and coastal defense structures, with waves shaping
coastal environments. Predicting and comprehending overtopping, where waves exceed coastal
structure crests and flow onto protected areas, is essential to mitigate risks to personnel, vessels,
infrastructure, erosion, and disruptions in port operations.
In our study, the analysis conducted on the wind and wave climate in Algiers Bay has provided
significant findings regarding the environmental conditions of the area. This study revealed that
the significant wave height in Algiers Bay ranges from 0.03m to 7.48m over a 30-year period,
with an average of 1.16m. The prevailing wave directions were from the North-East and West,
with North-East winds dominating in summer and West winds more frequent in winter.
Understanding the wind and wave climate is crucial in designing effective coastal protection
measures. By analyzing extreme events, the likelihood of rare marine phenomena can be
understood, enabling the creation of models representing their probability distributions (Stander,
C. (2015)), This knowledge plays a pivotal role in designing reliable coastal defense structures
and mitigating the impact of such events.
The findings from our numerical modeling emphasize the importance of considering the
morpho-bathymetry of Algiers Bay in reducing wave heights that affect coastal structures.
Notably, the Marina experienced a significant reduction of over 55% in wave heights for largeamplitude waves, primarily due to the interaction between waves and the seafloor directing wave
propagation northwards in the Marina area. Conversely, the Port witnessed a less pronounced
reduction in wave heights, reaching approximately 20% for large-amplitude waves.
Regarding current patterns, extreme events did not have a significant impact on local current
velocities, which remained consistent across various simulated climate scenarios. However, the
incident wave direction played a significant role in shaping the current patterns, resulting in
multiple flow directions and generated channels. Waves from the North-Northeast were
particularly influential, generating circular currents on either side of the Marina and the Algiers
Port. The recorded current velocities ranged from 0.3 m/s to 0.45 m/s.
Conclusions
Coastal engineering is a multidisciplinary field focused on understanding the complex
interactions between waves, coastal structures, and the shoreline. It plays a crucial role in
designing ports, shore protection measures, and coastal defense structures, with waves shaping
coastal environments. Predicting and comprehending overtopping, where waves exceed coastal
structure crests and flow onto protected areas, is essential to mitigate risks to personnel, vessels,
infrastructure, erosion, and disruptions in port operations.
In our study, the analysis conducted on the wind and wave climate in Algiers Bay has provided
significant findings regarding the environmental conditions of the area. This study revealed that
the significant wave height in Algiers Bay ranges from 0.03m to 7.48m over a 30-year period,
with an average of 1.16m. The prevailing wave directions were from the North-East and West,
with North-East winds dominating in summer and West winds more frequent in winter.
Understanding the wind and wave climate is crucial in designing effective coastal protection
measures. By analyzing extreme events, the likelihood of rare marine phenomena can be
understood, enabling the creation of models representing their probability distributions (Stander,
C. (2015)), This knowledge plays a pivotal role in designing reliable coastal defense structures
and mitigating the impact of such events.
The findings from our numerical modeling emphasize the importance of considering the
morpho-bathymetry of Algiers Bay in reducing wave heights that affect coastal structures.
Notably, the Marina experienced a significant reduction of over 55% in wave heights for largeamplitude waves, primarily due to the interaction between waves and the seafloor directing wave
propagation northwards in the Marina area. Conversely, the Port witnessed a less pronounced
reduction in wave heights, reaching approximately 20% for large-amplitude waves.
Regarding current patterns, extreme events did not have a significant impact on local current
velocities, which remained consistent across various simulated climate scenarios. However, the
incident wave direction played a significant role in shaping the current patterns, resulting in
multiple flow directions and generated channels. Waves from the North-Northeast were
particularly influential, generating circular currents on either side of the Marina and the Algiers
Port. The recorded current velocities ranged from 0.3 m/s to 0.45 m/s.