Articles | Volume 18, issue 2
Nat. Hazards Earth Syst. Sci., 18, 445–461, 2018
https://doi.org/10.5194/nhess-18-445-2018
Nat. Hazards Earth Syst. Sci., 18, 445–461, 2018
https://doi.org/10.5194/nhess-18-445-2018
Research article
08 Feb 2018
Research article | 08 Feb 2018

Process-based modelling to evaluate simulated groundwater levels and frequencies in a Chalk catchment in south-western England

Simon Brenner et al.

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Cited articles

Adams, B., Peach, D. W. D., and Bloomfield, J. P. J.: The LOCAR hydrogeological infrastructure for the Frome/Piddle catchment, British Geological Survey Internal Report, IR/03/179, 1–3, Keyworth, Nottingham, 2003.
Adams, B., Bloomfield, J. P., Gallagher, A. J., Jackson, C. R., Rutter, H. K., and Williams, A. T.: An early warning system for groundwater flooding in the Chalk, Q. J. Eng. Geol. Hydroge., 43, 185–193, https://doi.org/10.1144/1470-9236/09-026, 2010.
Allen, D. J., Brewerton, L. J., Coleby, L. M., Gibbs, B. R., Lewis, M. A., MacDonald, A. M., Wagstaff, S. J., and Williams, A. T.: The physical properties of major aquifers in England and Wales, British Geological Survey Technical Report WD/97/34, 312 pp., Environment Agency R&D Publication 8, 1997.
Aquilina, L., Ladouche, B., and Dörfliger, N.: Water storage and transfer in the epikarst of karstic systems during high flow periods, J. Hydrol., 327, 472–485, 2006.
Bakalowicz, M.: Karst groundwater: a challenge for new resources, Hydrogeol. J., 13, 148–160, 2005.
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Short summary
In this study we simulate groundwater levels with a semi-distributed karst model. Using a percentile approach we can assess the number of days exceeding or falling below selected groundwater level percentiles. We show that our approach is able to predict groundwater levels across all considered timescales up to the 75th percentile. We then use our approach to assess future changes in groundwater dynamics and show that projected climate changes may lead to generally lower groundwater levels.
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