Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
[ meld een fout in dit record ] | mandje (1): toevoegen | toon |
![]() |
one publication added to basket [367210] | |
Regional evaluation of groundwater-surface water interactions using a coupled geohydrological model (SWAT+gwflow) Yimer, E.A.; Bailey, R.T.; Van Schaeybroeck, B.; Van de Vyver, H.; Villani, L.; Nossent, J.; Van Griensven, A. (2023). Regional evaluation of groundwater-surface water interactions using a coupled geohydrological model (SWAT+gwflow). Journal of Hydrology: Regional Studies 50: 101532. https://dx.doi.org/10.1016/j.ejrh.2023.101532
In: Journal of Hydrology: Regional Studies. Elsevier B.V.: Amsterdam. e-ISSN 2214-5818, meer
| ![]() |
Beschikbaar in | Auteurs |
|
Trefwoorden |
Numerical modelling Water management > Hydrology > Physically based models Water management > Risk > Low water strategies Water management > Water quantity > Water system knowledge |
Author keywords |
|
Project | Top | Auteurs |
|
Auteurs | Top | |
|
|
Abstract |
Study focus: A proper representation of groundwater–surface water interactions with (geo)hydrological models is possible via a coupled model. However, such models have disadvantages, such as complex code modifications and new tunings, and are computationally expensive. Therefore, their application on large spatial scales is limited. A newly developed model, SWAT+gwflow integrates the Soil Water Assessment Tool (SWAT+) with the groundwater module gwflow and has the potential to overcome these limitations. However, this coupled model has not yet been evaluated at a regional scale; hence, we present the evaluation of this model for regional studies using a global aquifer data over the seven watersheds in the Scheldt basin. Furthermore, we have investigated and quantified water balance components within the basin, with a focus on groundwater-surface water exchange. New Hydrological Insights for the Region: From the results (Nash-Sutcliffe efficiency (NSE) of 0.8–0.9 for all catchments based on monthly average streamflow during calibration and validation periods), we consider the model to be a good simulator of hydrology in the basin. In addition, the simulated groundwater head shows good agreement with observed well data (with a mean absolute error of less than 0.42 m). Also, the rivers in five of the seven watersheds are found to be strongly dependent on groundwater discharge to the streams. We conclude that (1) the SWAT+gwflow model is capable of accurately modeling hydrological processes and state variables in the seven watersheds using global aquifer data and limited computational time, (2) the climate-gridded dataset can successfully be used for (geo)hydrological studies, and (3) the groundwater-surface water interaction increases over the years (from 1975 to 2021) with a strong increment found in the Grote Nete (3.7 fold) and upper Scheldt (2.3 fold) watersheds. These results are, moreover, promising for data-scarce regions where geohydrological modeling relies on the use of global datasets, but the mere success of this modeling application does not guarantee the accuracy of the dataset for other locations, hence, further verification is required. Furthermore, although in this study, the gwflow module is integrated into the SWAT+ model, it could also be integrated into other surface water models for other studies. |
Top | Auteurs |