Calibration of a lumped karst system model and application to the Qachqouch karst spring (Lebanon) under climate change conditions

Dubois, Emmanuel; Doummar, Joanna; Pistre, Séverin et Larocque, Marie (2020). « Calibration of a lumped karst system model and application to the Qachqouch karst spring (Lebanon) under climate change conditions ». Hydrology and Earth System Sciences, 24(9), pp. 4275-4290.

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Résumé

Flow in complex karst aquifers is challenging to conceptualize and model, especially in poorly investigated areas, in semiarid climates, and under changing climatic conditions; however, it is necessary in order to implement longterm sustainable water management practices. Thus, the objectives of this work were to propose a calibration approach based on time series analyses for a karst aquifer and to assess the impact of climate change on spring discharge. Based on more than 3 years of high-resolution continuous monitoring, a semi-distributed lumped model was calibrated and validated for the Qachqouch karst spring, north of Beirut (Lebanon). Time series analyses and decomposition of spring hydrographs revealed that the system has a high regulatory function, with considerable storage capacity providing stable flow (minimum flow of 0.2m3 s

Type:	Article de revue scientifique
Informations complémentaires:	© Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
Mots-clés ou Sujets:	Aquifère karstique, modèle conceptuel par réservoirs, analyse des séries temporelles, calage, région méditerranéenne, changements climatiques
Unité d'appartenance:	Centres institutionnels > Centre de recherche en géochimie et géodynamique (GEOTOP) Faculté des sciences > Département des sciences de la Terre et de l'atmosphère
Déposé par:	Marie Larocque
Date de dépôt:	02 sept. 2020 14:17
Dernière modification:	24 nov. 2021 14:14
Adresse URL :	http://archipel.uqam.ca/id/eprint/13498

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