Spatial distribution of nutrients in the Ebro estuary and plume

Sierra, Joan Pau; Sánchez‐Arcilla, Agustín; Río, J. González del; Flos, Jordi; Movellán, E.; Mösso, C.; Martínez, Rosario de Vicente; Rodilla, M.; Falco, S.; Romero, I.

doi:10.1016/s0278-4343(01)00061-9

Cited by 53 publications

(31 citation statements)

References 25 publications

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“…To understand water and salt exchange, it is important to study hydrodynamic factors controlling the total longitudinal flux ( Officer and Kester, 1991 ) . Estuarine hydrodynamics is controlled by riverine factors ( river discharge) , marine factors ( tides, waves, and currents) , meteorological factors ( winds, atmospheric pressure, and temperature variability) , and geomorphologic factors ( topography and bathymetry ) ( Sierra et al, 2002) . Understanding salt exchange mechanism is the basis for predicting the transport of nutrients, pollutants, and planktonic organisms.…”

Section: Introductionmentioning

confidence: 99%

Salt Fluxes within a Very Shallow Subtropical Estuary

Ali¹,

Lemckert²,

Dunn³

2010

Journal of Coastal Research

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Section: Introductionmentioning

confidence: 99%

Salt Fluxes within a Very Shallow Subtropical Estuary

Ali¹,

Lemckert²,

Dunn³

2010

Journal of Coastal Research

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“…Distribution pattern of Chl-a was also observed higher near the coast towards the south at river mouths. River mouths are greatly associated with plume loaded with high composition of suspended particular matter (Sierra et al 2002). This water discharge is also well known as a major source of nutrients in coastal areas (Tesi et al 2007).…”

Section: Results and Discusionmentioning

confidence: 99%

Factors Influencing the Distribution of Chl-a along Coastal Waters of East Peninsular Malaysia

Shaari¹,

Mustapha²

2017

JSM

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“…The differences observed in the circulation patterns obtained from the hydrodynamic model suggest that, for river discharges lower than 200 m 3 /s, the spreading of the freshwater plume will be highly dependent on the prevailing wind field, as suggested by field observations (Sierra et al, 2002). In particular, for Cases 1 and 2 the plume extent is expected to be limited to the northern part of the delta, whereas for Case 3 the plume is going to "spill" over the easternmost tip of the Delta, following the coast to the south.…”

Section: Hydrodynamicsmentioning

confidence: 90%

“…As observed during the field campaigns, the overall spreading of the plume follows the direction of the wind even for relatively low wind velocities (less than 4 m/s). Therefore, the persistence of the river plume in a given direction depends on the wind variability, which is of the order of hours (Sierra et al, 2002).…”

Section: Field Campaigns In the Ebro River Plumementioning

confidence: 99%

Modelling of the Ebro River plume. Validation with field observations

Mestres¹,

Sierra²,

Sánchez‐Arcilla³

et al. 2003

Sci. Mar.

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SUMMARY: The spreading of the plume induced by the freshwater discharge from the Ebro River into northwestern Mediterranean coastal waters was modelled using two numerical codes. The coastal current field was obtained with a finite difference hydrodynamic model based on a steady-state version of the shallow-water equations, whereas the freshwater dispersion was calculated with a Lagrangian code that solves the 3D convection-diffusion equation and reproduces turbulent diffusion using a "random-walk" algorithm. The agreement obtained between numerical results, satellite observations and field measurements allows an analysis of the more relevant physical mechanisms and the corresponding "tuning" of the two models. The results show that local hydrodynamics near the river mouth, and consequently the spreading of the river plume, are highly dependent on the driving river discharge and wind field characteristics.Key words: Ebro River, river plume, numerical modelling, hydrodynamics, dispersion.RESUMEN: MODELADO DEL PENACHO DEL RÍO EBRO. VALIDACIÓN CON MEDIDAS DE CAMPO. -Se presenta la simulación del penacho de agua dulce resultante de la descarga del río Ebro en el Mediterráneo mediante el uso secuencial de dos modelos numéricos. La hidrodinámica costera ha sido obtenida con un modelo en diferencias finitas, basado en una versión estacionaria de las ecuaciones para aguas someras, mientras que la dispersión del agua aportada por el Ebro se ha calculado con un modelo lagrangiano de partículas que resuelve la ecuación de transporte 3D. El ajuste obtenido entre los resultados numé-ricos, medidas de campo y observaciones desde satélite permiten analizar los mecanismos físicos más relevantes, así como realizar el correspondiente calibrado de ambos modelos. Los resultados muestran que la hidrodinámica local cerca de la desembocadura del río y, por consiguiente, la dispersión del penacho del río, dependen principalmente del volumen de descarga del río y de la características del viento dominante.Palabras clave: río Ebro, penacho de agua dulce, modelado numérico, hidrodinámica, dispersión.

show abstract

Spatial distribution of nutrients in the Ebro estuary and plume

Cited by 53 publications

References 25 publications

Salt Fluxes within a Very Shallow Subtropical Estuary

Salt Fluxes within a Very Shallow Subtropical Estuary

Factors Influencing the Distribution of Chl-a along Coastal Waters of East Peninsular Malaysia

Modelling of the Ebro River plume. Validation with field observations

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