285
a change in the balance that the system has leading to a response from the natural
environment in search of new balance between processes and physical conditions.
However, it is important to note that the activities developed by the human being in
the coast, do not consider relations between meteo-marines processes and the physical variables that involve the beach, so the regulatory and restore process is
interrupted.
When large infrastructure developments are carried out the morphological
response of the coast and the effects derivate from the physical alteration are usually
don’t taken in account, and many others cannot be predicted a priori by the complexity of involved phenomena. In the studied zone, it was found as principal
anthropogenic impact with negatives effects in the equilibrium of system since its
establishment, the protection works of the external navigability channel for the
Barranquilla Port. This resulted in a disruption of flowing sediment due to its perpendicular disposition to the coastline, with the consequent erosion associated not
only in the unprotected area; besides, the sediment that flows as bedload through the
principal channel of the river ending in a submarine canyon (Fig. 9.4). Only a small
number of sediment reaches to overcome these two obstacles during certain times
of the year, in function of the wave direction and the effects of the diffraction of
western groin.
Fig. 9.4 Digital Elevation Model (DEM) of Submarine Canyon at Bocas de Ceniza Mouth
9 Physical and Morphological Changes to Wetlands Induced by Coastal Structures
a change in the balance that the system has leading to a response from the natural
environment in search of new balance between processes and physical conditions.
However, it is important to note that the activities developed by the human being in
the coast, do not consider relations between meteo-marines processes and the physical variables that involve the beach, so the regulatory and restore process is
interrupted.
When large infrastructure developments are carried out the morphological
response of the coast and the effects derivate from the physical alteration are usually
don’t taken in account, and many others cannot be predicted a priori by the complexity of involved phenomena. In the studied zone, it was found as principal
anthropogenic impact with negatives effects in the equilibrium of system since its
establishment, the protection works of the external navigability channel for the
Barranquilla Port. This resulted in a disruption of flowing sediment due to its perpendicular disposition to the coastline, with the consequent erosion associated not
only in the unprotected area; besides, the sediment that flows as bedload through the
principal channel of the river ending in a submarine canyon (Fig. 9.4). Only a small
number of sediment reaches to overcome these two obstacles during certain times
of the year, in function of the wave direction and the effects of the diffraction of
western groin.
Fig. 9.4 Digital Elevation Model (DEM) of Submarine Canyon at Bocas de Ceniza Mouth
9 Physical and Morphological Changes to Wetlands Induced by Coastal Structures