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Título: | Hydrodynamics and hydrogeochemical changes in the mixing zone of a coastal aquifer during a heavy rain event |
Autor: | Goyetche, Tybaud CSIC ORCID; Diego-Feliu, Marc; Luquot, Linda CSIC ORCID; García-Orellana, Jordi; Rodellas, Valentí; del Val, Laura; Martínez-Pérez, Laura CSIC ORCID; Palacios, Andrea CSIC; Ledo, J.; Pezard, P.; Folch, Albert; Carrera, Jesús CSIC ORCID | Palabras clave: | Hydrodynamics Aquifers |
Fecha de publicación: | 2020 | Resumen: | The coastal aquifers are the place where meet fresh water and seawater. This confluence between both of them is called mixing zone which is in equilibrium due to the different density of the two masses and where various biogeochemical reactions takes place. We know that this equilibrium can be canceled during an important recharge event. Within the aquifer, such events displace the mixing zone over a short time period. This study is aims at the identification and description at high frequency of spatial and temporal response of the mixing zone and its impact on geochemical processes during one such fast water inflow event. We choose the experimental site of Argentona as the place of this study. Located in the northeast of Spain this site is subjected to a Mediterranean climate characterized by heavy rainfall amount recorded during Fall and early Spring period, concentrated during a few hours. Furthermore, this site is located on an alluvial aquifer, equipped with 16 shallow boreholes over a 100 m scale (Fig.1). The geological cross section presented in Fig.2 shows that the aquifer is multilayered and we suspect an effect of a clay/silt layer located at around 12 m. | URI: | http://hdl.handle.net/10261/202159 |
Aparece en las colecciones: | (IDAEA) Comunicaciones congresos |
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Hydrodynamics and hydrogeochemical changes in the mixing zone.pdf | Póster | 936,99 kB | Adobe PDF | Visualizar/Abrir |
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