Modeling the water exchanges between the Venice Lagoon and the Adriatic Sea
In: Ocean Dynamics. Springer-Verlag: Berlin; Heidelberg; New York. ISSN 1616-7341; e-ISSN 1616-7228, more
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| Keywords |
Analysis > Mathematical analysis > Numerical analysis > Finite element method
Doppler effect
Finite elements
Fluid dynamics
Hydrodynamics
Motion > Water motion > Circulation > Water circulation > Wind-driven circulation
Standardization > Calibration
Water exchange
Water levels
MED, Adriatic Sea [Marine Regions]; MED, Italy, Veneto, Venice Lagoon [Marine Regions]
Marine/Coastal |
| Author keywords |
Hydrodynamic model; Finite elements; Venice Lagoon; Adriatic Sea;Sea-lagoon exchange |
| Authors | | Top |
- Bellafiore, D.
- Umgiesser, G.
- Cucco, A.
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| Abstract |
A hydrodynamic model of the Venice Lagoon and the Adriatic Sea has been developed in order to study the exchanges at the inlets of the Venice Lagoon, a complex morphological area connecting the sea and the lagoon. The model solves the shallow water equations on a spatial domain discretized by a staggered finite element grid. The grid represents the Adriatic Sea and the Venice Lagoon with different spatial resolutions varying from 30 m for the smallest channels of the lagoon to 30 km for the inner areas of the central Adriatic Sea. Data from more than ten tide gauges displaced in the Adriatic Sea have been used in the calibration of the simulated water levels. After the calibration, the tidal wave propagation in the North Adriatic and in the Venice Lagoon is well reproduced by the model. To validate the model results, empirical flux data measured by acoustic Doppler current profiler probes installed inside the inlets of Lido and Malamocco have been used and the exchanges through the three inlets of the Venice Lagoon have been analyzed. The comparison between modeled and measured fluxes at the inlets outlines the efficiency of the model to reproduce both tide- and wind-induced water exchanges between the sea and the lagoon. Even in complex areas, where highly varying resolution is needed, the model is suitable for the simulation of the dominating physical processes. |
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