Mondego Estuary - EU Directives

INDEX

Abstract

Rationale

Estuary Loads

Location

Rivers discharges

Model Implementation

Domain

Hydrodynamics

Transient Circulation

Residence Time

Conclusions

Reference Scenario

Time Series Results

Properties Spatial Distribution

Annual Budgets

Scenario1- 50% Reduction in nitrate river load

Properties Spatial Distribution

Boxes Concentration

Conclusions

New Model Results (2003)

Boxes Concentration Validation

Macroalgae Distribution

 
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Hydrodynamic Conclusion

  • Compares the hydrodynamics in present conditions and in the reopening scenario, shows that in the reopening scenario, the velocity inside of the southern channel is higher and consequently, dredging of this section should be considered as part of the solution for the rehabilitation of the trophic conditions in the southern channel. The effectiveness and the details of the dredging to modify the trophic conditions of the estuary and of its implications on sediment transport and navigability in the port areas of the estuary require a more detailed work.

     

  • The residence time in the estuary is of the order of 4 days.

EU Directives
OSPAR

Tagus Estuary Mondego Estuary Sado Estuary

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