Articles | Volume 19, issue 2
Hydrol. Earth Syst. Sci., 19, 823–837, 2015
https://doi.org/10.5194/hess-19-823-2015
Hydrol. Earth Syst. Sci., 19, 823–837, 2015
https://doi.org/10.5194/hess-19-823-2015

Research article 06 Feb 2015

Research article | 06 Feb 2015

A high-resolution global-scale groundwater model

I. E. M. de Graaf et al.

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Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2016-121,https://doi.org/10.5194/hess-2016-121, 2016
Revised manuscript not accepted
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Cited articles

Beven, K. J. and Kirkby, M. J.: Considerations in the development and validation of a simple physically based, variable contributing area model of catchment hydrology, in: Surface and subsurface hydrology, Proc. Fort Collins 3rd international hydrology symposium, July 1977, Fort Collins, 23–36, 1979.
Bierkens, M. F. P. and van den Hurk, B. J. J. M.: Groundwater convergence as a possible mechanism for multi-year persistence in rainfall, Geophys. Res. Lett., 34, L02402, https://doi.org/10.1029/2006GL028396, 2007.
Clark, B. and Hart, R.: The Mississippi Embayment Regional Aquifer Study (MERAS): Documentation of a groundwater-flow model contructed to assess water Availability in the Mississippi Embayment, Tech. Rep. 5172, US Geological Survey Scientific Investigations Report, US Geological Survey, Reston, Virginia, 2009.
de Graaf, I. E. M., van Beek, L. P. H., Wada, Y., and Bierkens, M. F. P.: Dynamic attribution of global water demand to surface water and groundwater resources: effects of abstractions and return flows on river discharges, Adv. Water Resour., 64, 21–33, https://doi.org/10.1016/j.advwatres.2013.12.002, 2014.
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In this paper we present a high-resolution global-scale groundwater model of an upper aquifer. An equilibrium water table at its natural state is constructed. Aquifer parameterization is based on available global datasets on lithology and conductivity combined with estimated aquifer thickness. The results showed groundwater levels are well simulated for many regions of the world. Simulated flow paths showed the relevance of including lateral groundwater flows in global scale hydrological models.