Chapter III
Numerical Modeling
37
Bathymetry of Algiers Bay
The bathymetry of the bay of Algiers can be categorized into three distinct zones. The areas near
the eastern and western capes exhibit steep slopes, influenced by the geology of the capes, which
consist of harder and more resistant lithology such as cliffs. These zones also experience strong
hydrodynamic effects, making them energetically favorable areas where wave orthogonal
converge. The transition from the coastline to the -50 meter isobath occurs over a relatively short
distance on both sides of the bay.
Figure III-2 Bathymetry of Algiers Bay.
In contrast, the central zone of the bay of Algiers features a predominantly smooth slope. This is
primarily attributed to the lithology of this area, which is softer and more erodible. The presence
of sandy beaches, nourished by sediment input from the two rivers in the bay, contributes to the
overall low slope observed. Additionally, the wave energy in this central area is relatively lower
compared to the zones near the capes.
Offshore of the bay of Algiers, the continental shelf terminates directly at the bay's exit. This is
characterized by closely spaced isobaths, confirming the findings from the regional-scale
analysis of the broader central Algerian region's morphology.
Bathymetry in the area of the Marina and the Port of Algiers
Bathymetry of the Algiers Port
From Figure III-3, the bathymetry of the port can be categorized into two distinct sections