Arnaud K. K., Bonou F., Sohou Z., Angnuureng D. B., Almar Rafaël. (2021). Evaluation of hydromorphological conditions of Grand Popo Beach using two unique video cameras. Interpretation, 9 (4), p. SH57-SH66. ISSN 2324-8858.
Titre du document
Evaluation of hydromorphological conditions of Grand Popo Beach using two unique video cameras
Arnaud K. K., Bonou F., Sohou Z., Angnuureng D. B., Almar Rafaël
Source
Interpretation, 2021,
9 (4), p. SH57-SH66 ISSN 2324-8858
Beaches are characterized by complex spatial and temporal patterns of erosion and accretion subjected to significant wave and tide influence. The objective of this study is to estimate the evolution of hydromorphody-namic conditions on the shoreline of Grand Popo Beach observed from two adjacent video camera setups. We have analyzed the impact of the variability of hydrodynamic parameters on the beach evolution and evaluated the variabilities of the hydrodynamic and morphologic parameters from the two cameras. Despite the nonhomogeneity within the cameras' intrinsic properties, the various results obtained from the two systems indicate that wave conditions (peak period and significant height) from the cameras have the same variations, whereas the shoreline variations of camera A are not the same as those of camera B. It is generally during the summer that the Grand Popo Beach is exposed to an agitated environment with strong observed values of significant wave heights and wave energy flux, undoubtedly resulting in significant sediment transport along the beach leading a shoreline retreat The results indicate that in 3.5 years the shoreline of Grand Popo Beach has retreated by 10 m.
