A water balance approach for quantifying subsurface exchange fluxes and associated errors in hill reservoirs in semiarid regions

Maroua Bouteffeha; Cécile Dages; Rachida Bouhlila; Jérôme Molenat

doi:10.1002/hyp.10308

journal article Sep 05, 2014

A water balance approach for quantifying subsurface exchange fluxes and associated errors in hill reservoirs in semiarid regions

Maroua Bouteffeha Cécile Dages Rachida Bouhlila Jérôme Molenat

Hydrological Processes Vol. 29 No. 7 pp. 1861-1872 · Wiley

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Abstract

AbstractHill reservoirs are rain water‐harvesting structures that have been increasingly adopted in arid and semi‐arid regions, such as North Africa, to capture and conserve runoff water and for use as alternative water resources in agricultural development. Currently, process‐based information on reservoir hydrology is needed to improve reservoir management practices.The study aims to develop an approach to estimate the reservoir–subsurface exchange flux and its associated error at the annual, monthly, and intra‐monthly time scales to better understand the hydrological functioning and dynamics of hill reservoirs. This approach is based on a hydrological water balance of the hill reservoir by considering all water input and output fluxes and their associated errors.The results demonstrate the ability and relevance of the approach in estimating the net reservoir–subsurface exchange flux and its error estimations at various time scales. Its application on the Kamech catchment (Northern Tunisia) for the 2009–2012 period demonstrates that the net reservoir–subsurface exchange flux is positive, i.e. the infiltration from the hill reservoir to the aquifer dominates over the discharge from the aquifer to the reservoir. Moreover, reservoir–subsurface exchange constitutes the main output component in the water balance. Copyright © 2014 John Wiley & Sons, Ltd.

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Details

Published: Sep 05, 2014
Vol/Issue: 29(7)
Pages: 1861-1872
License: View

Authors

M

Maroua Bouteffeha

ENIT‐LMHE Tunis El Manar University 37, 1002 Tunis Belvédère Tunisia; INRA UMR 1221 LISAH F‐34060 Montpellier France; IRD UMR 1221 LISAH F‐34060 Montpellier France; Montpellier SupAgro UMR 1221 LISAH F‐34060 Montpellier France

C

Cécile Dages

INRA UMR 1221 LISAH F‐34060 Montpellier France; IRD UMR 1221 LISAH F‐34060 Montpellier France; Montpellier SupAgro UMR 1221 LISAH F‐34060 Montpellier France

R

Rachida Bouhlila

ENIT‐LMHE Tunis El Manar University 37, 1002 Tunis Belvédère Tunisia

J

Jérôme Molenat

INRA UMR 1221 LISAH F‐34060 Montpellier France; IRD UMR 1221 LISAH F‐34060 Montpellier France; Montpellier SupAgro UMR 1221 LISAH F‐34060 Montpellier France

Cite This Article

Maroua Bouteffeha, Cécile Dages, Rachida Bouhlila, et al. (2014). A water balance approach for quantifying subsurface exchange fluxes and associated errors in hill reservoirs in semiarid regions. Hydrological Processes, 29(7), 1861-1872. https://doi.org/10.1002/hyp.10308

A water balance approach for quantifying subsurface exchange fluxes and associated errors in hill reservoirs in semiarid regions

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