Hydrodynamic Modeling of Lagos and Lekki Lagoons (original) (raw)

Abstract

Lagos and Lekki lagoons in Nigeria are water body in the heart of the Lagos metropolis. The two lagoons are interlinked by a waterway. Lagos State is naturally protected by Lekki and Victoria Islands/barrier against wave and tidal action of the Atlantic Ocean. In addition, it is frequently exposed to seasonal rainfall storms that lead to increased water level (retained water depth) of the lagoon due to relatively long residence times and eventually inundation of low-lying and swamp areas. The Nigerian authorities do not permit any breach in the natural barrier to directly release rainfall storm waters into the ocean except the existing Lagos Lagoon outlet. Outfalls are merely permitted around Lagos and Lekki Lagoons. The drainage of rainfall storm water into the lagoons shall result in water volume retention leading to potential increase in water level. The question of how much water level rise due to rainfall storm water discharges requires an answer since there are ongoing and fut...

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