Climate Change and Dynamics of the ITCZ on the Hydro-Climatic Regime of the Northern Ecosystems of the Gulf of Guinea: A Case of the Grand-Lahou Lagoon System

Atmospheric dynamics and climatology in West Africa are strongly dominated by the latitudinal migration of ITCZ which imposes directly or indirectly determinism on coastal ecosystems. Thus, Grand-Lahou lagoon system its watershed influenced ITCZ, whose seasonal study made it possible to understand mode action first climatic factors, then hydroclimatic, finally hydrological context global changes. The these factors showed a differentiated impact regime defining new configuration beyond; ecosystems northern coast Gulf Guinea irrigated numerous fluvial inputs. Salinity, parameter critical ecosystem importance, combined with transparency depth, has enabled spatio-temporal description hydrology. To do this, series monthly measurements (in-situ) for spatial coverage 25 stations was tested. Long before that, hydroclimatic parameters were obtained respectively at SODEXAM, meteorological site earth.nullschool.net ONADE. This brought together lagoon.