Distributed memory parallel groundwater modeling for the Netherlands Hydrological Instrument
Environmental Modelling & Software, vol. 143, pp. 105092
Abstract
Worldwide, billions of people rely on fresh groundwater reserves for their domestic, agricultural and industrial water use. Extreme droughts and excessive groundwater pumping put pressure on water authorities in maintaining sustainable water usage. High-resolution integrated models are valuable assets in supporting them. The Netherlands Hydrological Instrument (NHI) provides the Dutch water authorities with open source modeling software and data. However, NHI integrated groundwater models often require long run times and large memory usage, therefore strongly limiting their application. As a solution, we present a distributed memory parallelization, focusing on the National Hydrological Model. Depending on the level of integration, we show that significant speedups can be obtained up to two orders of magnitude. As far as we know, this is the first reported integrated groundwater parallelization of an operational hydrological model used for national-scale integrated water management and policy making. The parallel model code and data are freely available.
Authors 6
-
Jarno Verkaik corresponding
Affiliation as printed
Department of Physical Geography, Utrecht University, Utrecht, the Netherlands
Unit Subsurface and Groundwater Systems, Deltares, Utrecht, the Netherlands
-
United States Geological Survey
Affiliation as printed
U.S. Geological Survey Integrated Modeling and Prediction Division, Chicago, United States
-
Wageningen University & Research
Affiliation as printed
Wageningen Environmental Research, Wageningen, the Netherlands
-
Affiliation as printed
Department of Physical Geography, Utrecht University, Utrecht, the Netherlands
Unit Subsurface and Groundwater Systems, Deltares, Utrecht, the Netherlands
-
Leiden University · Delft University of Technology
Affiliation as printed
Delft Institute of Applied Mathematics, Delft University of Technology, Delft, the Netherlands
Institute of Environmental Sciences, Leiden University, Leiden, the Netherlands
-
Affiliation as printed
Department of Physical Geography, Utrecht University, Utrecht, the Netherlands
Unit Subsurface and Groundwater Systems, Deltares, Utrecht, the Netherlands
Cited by 22 stored of 22
No patents citing this paper on Lens.org (checked 2026-10-11).