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title New insights into the Western Iberian Buoyant Plume: Interaction between the Douro and Minho River plumes under winter conditions
authors Mendes, R; Sousa, MC; deCastro, M; Gomez-Gesteira, M; Dias, JM
author full name Mendes, Renato; Sousa, Magda Catarina; deCastro, Maite; Gomez-Gesteira, Moncho; Dias, Joao Miguel
title New insights into the Western Iberian Buoyant Plume: Interaction between the Douro and Minho River plumes under winter conditions
nationality internacional
source PROGRESS IN OCEANOGRAPHY
language English
document type Review
keywords plus RIAS BAIXAS NW; CIRCULATION WEATHER TYPES; ESTUARY PORTUGAL; CHESAPEAKE BAY; COASTAL DISCHARGES; CONTINENTAL-SHELF; NORTHWEST IBERIA; MODIS IMAGERY; OUTFLOW PLUME; WIND
abstract The Douro and Minho Rivers are the most important freshwater contributors on the northwestern coast of the Iberian Peninsula. Although their interaction is poorly understood, it is well known that they generate the Western Iberian Buoyant Plume (WIBP). This study aims to research the interaction of the Douro and Minho estuarine plumes under winter conditions, with a focus on the changes induced in normal WIBP patterns. Additionally, it will assess the impact of these changes on the Rias Baixas dynamics. An integrated analysis of the dispersion of these plumes was performed through hydrodynamic and Lagrangian numerical simulations of representative winter conditions for January and February 2010. Several simulations were carried out to study the interaction between plumes and their direct and indirect influence on coastal circulation. Under downwelling-favorable winds, the interaction between the Douro and Minho plumes is clear. Both plumes tend to be confined against the coast, as Ekman transport generates a buoyant coastal band with high surface currents. Douro estuary inflow reaches the Minho River coastal region and interacts with the Minho plume to modify freshwater fate. The Douro estuarine plume plays an important role in stabilizing WIBP, by preventing small-scale eddy generation and, consequently, the offshore freshwater transport. In addition, the Douro River has been shown to have a crucial influence on plume stratification, by enhancing the water exchange with the Rias de Vigo and Pontevedra. Interaction between the Douro and Minho plumes is unlikely during upwelling events. Finally, despite the Douro River having the higher discharge, it has a small direct influence on the Rias Baixas. (C) 2015 Elsevier Ltd. All rights reserved.
author address [Mendes, Renato; Sousa, Magda Catarina; Dias, Joao Miguel] Univ Aveiro, Dept Fis, CESAM, P-3810193 Aveiro, Portugal; [deCastro, Maite; Gomez-Gesteira, Moncho] Univ Vigo, EPhysLab Environm Phys Lab, Fac Ciencias, Orense, Spain
reprint address Dias, JM (reprint author), Univ Aveiro, Dept Fis, CESAM, P-3810193 Aveiro, Portugal.
e-mail address joao.dias@ua.pt
orcid number Mendes, Renato/0000-0002-2964-9757
funding agency and grant number Portuguese Science Foundation [SFRH/BD/79555/2011, SFRH/BPD/99707/2014]; National Foundation for Science and Technology - FCT, through CESAM [UID/AMB/50017/2013]; Xunta de Galicia under the project Programa de Consolidacion e Estruturacion de Unidades de Investigacion (Grupos de Referenda Competitiva) - European Regional Development Fund (FEDER) [EM2013/003]
funding text The first and second authors of this work have been supported by the Portuguese Science Foundation through a doctoral grant (SFRH/BD/79555/2011) and a postdoctoral grant (SFRH/BPD/99707/2014), respectively. This study was supported by the National Foundation for Science and Technology - FCT, through CESAM (UID/AMB/50017/2013), Xunta de Galicia under the project Programa de Consolidacion e Estruturacion de Unidades de Investigacion (Grupos de Referenda Competitiva) funded by European Regional Development Fund (FEDER) and under the project EM2013/003.
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cited reference count 71
publisher PERGAMON-ELSEVIER SCIENCE LTD
publisher city OXFORD
publisher address THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
issn 0079-6611
29-character source abbreviation PROG OCEANOGR
iso source abbreviation Prog. Oceanogr.
publication date FEB
year published 2016
volume 141
beginning page 30
ending page 43
digital object identifier (doi) 10.1016/j.pocean.2015.11.006
page count 14
web of science category Oceanography
subject category Oceanography
document delivery number DO9IZ
unique article identifier WOS:000378101200003
link http://dx.doi.org/10.1016/j.pocean.2015.11.006