Argentina 8 beach erosion 8 coastal protection Beaches 6 Erosion 6 cliff 6 human activity 6 Buenos Aires [Argentina] 5 Anthropic activity 4 Necochea 4 Protection 4 Quequen Grande Estuary 4 Quequén port 4 coastal engineering 4 estuarine dynamics 4 flooding 4 geoaccumulation 4 harbor 4 sand 4 sedimentation 4 Altered backshore 2 Buenos Aires 2 Buenos Aires province 2 Coastal dynamics 2 Coastal morphology 2 Coastal planning 2 Coastal zones 2 Defense structure 2 Defense structures 2 Environmental change 2