Effects of sea level rise on salinity and tidal flooding patterns in the Guadiana Estuary

Abstract Sea level rise is a worldwide concern as high percentage of the population located in coastal areas. The focus this study impact sea Guadiana Estuary, an estuary Iberian Peninsula formed at interface River and Gulf Cadiz. Estuaries will be impacted by these transitional environments host highly diverse complex marine ecosystems. major consequences are intrusion salt from into fresh water increase flooding area. As physical, chemical, biological components estuaries sensitive to changes salinity, purpose further evaluate Estuary caused rise. Hydrodynamics were simulated two-dimensional numerical model with MOHID modeling system. A previously developed hydrodynamic was implemented examine salinity distribution response Varying tidal amplitudes, freshwater discharge bathymetries incorporated fully impacts on areas estuary. Results show overall land inundation