The complex hydrodynamic, morphological and ecological mechanisms that rule estuaries are not entirely understood yet. Consolidated knowledge of estuary dynamics is, however, a prerequisite for their wise management and governance. Modern integrated management systems (based for example on the EU Water Framework Directive) break away from the piecemeal approach and single-issue interventions, and try to perceive the different estuary functions as integral parts of one system.

TIDE brings together scientists from different countries to compare the results of their research and jointly work out the scientific basis for estuary management. TIDE will advance scientific knowledge about estuary functioning by analysing and integrating geomorphological, hydrological and ecologic data for each estuary and conducting inter-estuary comparisons.

TIDE's structural framework is centered around the concept of ecosystem services. The ecosystem services approach involves quantification of the many services provided by estuaries -- such as flood regulation, buffering of tidal fluctuations and coastal protection,  water purification, habitats for plants and animals, tourism and riverine transport -- making it possible to link ecology and economy, as the ecosystem services can be valued in economic terms.

Through this approach TIDE will:

•  Define existing estuarine needs and services, and estimate their importance
•  Conduct inter-estuarine comparisons
•  Define conservation goals, including morphological goals such as the decrease of tidal activity
•  Link ecosystem services desired to the habitat needs and conditions necessary to provide them
•  Develop a joint inter-estuarine TIDE Assessment Toolbox

The University of Antwerp will be guiding the project in these tasks.