Consulta: creatorFacets:"Leitao, P"
Registros recuperados: 2
Data/hora: 11/06/2024 01:25:07

A two-dimensional particle tracking model for pollution dispersion in A Coruna and Vigo Rias (NW Spain)
Provedor de dados: 5
Autores: Gomez-gesteira, M; Montero, P; Prego, R; Taboada, Jj; Leitao, P; Ruiz-villarreal, M; Neves, R; Perez-villar, V.
A two-dimensional hydrodynamic model coupled to a particle tracking model is applied to study the dispersion processes and residence time in two Galician rias (A Coruna and Vigo, NW Spain) under summer conditions. In A Coruna a long residence time was found in the harbour area due to the existence of a dock, and a short one in the river area. On the contrary, in Vigo, the residence time is smaller in the harbour area, due to the Rande Strait, beyond which the river effect is negligible.
Tipo: Text
Palavras-chave: Modèle bidimensionnel; Traceur passif; Circulation résiduelle; Pollution; Rias de Galice; Two-dimensional model; Passive tracers; Residual currents; Pollution; Galician rias.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43618/43312.pdf

3D modelling in the Sado estuary using a new generic vertical discretization approach
Provedor de dados: 5
Autores: Martins, F; Leitao, P; Silva, A; Neves, R.
Sado estuary (Portugal) is a mesotidal well-mixed estuary. The flow however, displays strong three-dimensional features associated with bathymetry variations. The flow is simulated using a three-dimensional primitive equation model based on the finite-volume method and incorporating a new concept for the vertical discretization. The innovative features of the model are analysed and the advantages of the finite-volume method to implement the generic vertical discretization are put into evidence. The model was validated using water level, velocity and salinity measurements in several stations along the estuary. Results show the influence of main channel's strong curvature on the generation of secondary flows inside the estuary. The steep bathymetry of the...
Tipo: Text
Palavras-chave: Estuaires; Modélisation numérique; Écoulements secondaires; Recirculation verticale; Discrétisation verticale générique; Estuaries; Numerical modelling; Secondary flows; Vertical recirculation; Generic vertical discretization.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00291/40270/38641.pdf