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Artículo

Assessment of groundwater recharge and discharge processes in a loessical aquifer using a new computer code

Blarasin, Mónica Teresa; Maldonado, Marina LucianaIcon ; Bécher Quinodóz, Fátima NoeliaIcon ; Alincastro, Nahuel; Cabrera, Adriana Edith; Matteoda, Edel Mara; Giuliano Albo, María JesicaIcon
Fecha de publicación: 05/2015
Editorial: International Association for Environmental Hydrology
Revista: Journal of environmental hydrology
ISSN: 1058-3912
e-ISSN: 1996-7918
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Geociencias multidisciplinaria

Resumen

Rio Cuarto city and its rural surrounding area (400 km2) shows two major geological environments,formed by eolian and fluvial sediments. The main source of groundwater recharge is precipitation (P),with an annual mean rainfall of 799 mm; 75-80% concentrated in spring and summer. The aim of this paper is to show the water table behavior in the unconfined eolian aquifer (very fine sands and silts) taking into consideration recharge (R) and discharge (D) events. R was calculated using the watertable fluctuation method for a selected period (2002-2009) with a new computer code Likqo 1.0. Therecharge was estimated for both the hydrologic and calendar year. The first result was better according to the higher R-P regression coefficient obtained. It is important to highlight the recharge delay (daysor weeks) in relation to rain storms; a fact that can be linked to water table depth. The average R value for the entire series was 12% of P, the largest recharge occurring in the hydrologic periods 2002-2003 and 2007-2008 (14% P) and the lowest in 2004-2005 (10 % P). The ratio R/D for the total series was slightly negative, which means that aquifer discharge was dominant, coinciding with the lowest position of the water table.
Palabras clave: GROUNDWATER , RECHARGE , COMPUTER CODE
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/161973
URL: http://www.hydroweb.com/journal-hydrology-2015-paper-5.html
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Blarasin, Mónica Teresa; Maldonado, Marina Luciana; Bécher Quinodóz, Fátima Noelia; Alincastro, Nahuel; Cabrera, Adriana Edith; et al.; Assessment of groundwater recharge and discharge processes in a loessical aquifer using a new computer code; International Association for Environmental Hydrology; Journal of environmental hydrology; 23; 5; 5-2015; 1-13
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