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Title: Lagrangian transport of particles in Ria de Aveiro lagoon, Portugal
Author: Dias, J. M.
Lopes, J. F.
Dekeyser, I.
Issue Date: 2001
Publisher: Elsevier
Abstract: A two-dimensional vertically integrated hydrodynamic model coupled to a particle tracking model is applied to study the dispersion processes and residence time in Ria de Aveiro lagoon (Portugal). The only dispersion process that is considered in this study is the advection, according to the main characteristics of the local hydrodynamic. The particle tracking model computes the particles position at each time step, using a fourth-order Runge-Kutta integration method. The dispersion of passive particles released along the lagoon and in critical areas are studied in this work. The residence time is also determined for the entire lagoon. The results show that the mixture between particles coming from different channels of the lagoon is negligible in a time scale higher than 2 tidal cycles. The residence time for the lagoon central area is about 2 days, revealing a strong marine influence in this area. At the upper reaches of the channels were found values higher than 2 weeks.
Peer review: yes
DOI: 10.1016/s1464-1917(01)00076-9
ISSN: 1474-7065
Appears in Collections:CESAM - Artigos
Ria de Aveiro - Artigos

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