A numerical study of mixing and stratification dynamics in the Ria de Arousa estuary (nw Spain) during summer

A numerical study of mixing and stratification dynamics in the Ria de Arousa estuary (nw Spain) during summer

Bermudez, M.
Pietrzak, J.D.
Cea, L.
Puertas, J.
Stelling, G.S.
De Boer, G.J.

Civil Engineering and Geosciences

Hydraulic Engineering

2013-06-24

In this paper we explore the role of the river run-off, the tidal regime and the local winds in the dynamics of the Ria de Arousa estuary during the summer period, using for that purpose the numerical model Delft3D. First of all, a simulation under real hydrological and meteorological conditions is conducted in order to validate the ability of the model to reproduce measured salinity and temperature profiles. Subsequently, a series of simulations considering simplified meteorological input data and river discharge conditions are carried out in order to study the sensitivity of stratification conditions in the estuary to the various external forcings of the model. The results are analyzed using potential energy anomaly arguments, which allow quantifying and ranking the contribution of the different processes to the stratification of the estuarine system.

Ria de Arousa estuary
3D numerical model
potential energy anomaly
mixing and stratification

http://resolver.tudelft.nl/uuid:40962f3b-3ffe-4d39-bca6-30b4d9f27ffc

Bordeaux University

Coastal Dynamics 2013: 7th International Conference on Coastal Dynamics, Arcachon, France, 24-28 June 2013

Institutional Repository

conference paper

(c) 2013 The Author(s)