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Hydrology 2019, 6(1), 23; https://doi.org/10.3390/hydrology6010023

Assessment of Groundwater Recharge, Evaporation, and Runoff in the Drava Basin in Hungary with the WetSpass Model

1
Doctoral School of Earth Sciences, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary
2
Civil Engineering Department, Faculty of Engineering, Minia University, Minia 61111, Egypt
3
Institute of Geography, Faculty of Sciences, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary
4
Civil Engineering Department, College of Engineering, Shaqra University, Dawadmi 17441, Ar Riyadh, Saudi Arabia
*
Author to whom correspondence should be addressed.
Received: 7 January 2019 / Revised: 12 March 2019 / Accepted: 13 March 2019 / Published: 16 March 2019
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Abstract

The assessment of spatial and temporal distribution of groundwater recharge is required as an input to develop the regional groundwater model in the Drava flood plain for more accurate simulations of different management scenarios. WetSpass-M, a GIS-based spatially-distributed water balance model, was implemented to assess monthly, seasonal, and the annual averages of groundwater recharge, surface runoff and actual evapotranspiration in the Drava basin, Hungary for the period between 2000–2018. The basic relevant input-data for the Wetspass-M model is prepared in grid-maps using the tool ARCGIS tool. It comprises monthly climatological recordings (e.g., rainfall, temperature, wind speed), distributed land cover, soil map, groundwater depth, topography, and slope. The long-term temporal and spatial average monthly precipitation (58 mm) is distributed as 29% (17 mm) surface runoff, 27% (16 mm) actual evapotranspiration, and 44% (25 mm) groundwater recharge. The mean annual groundwater recharge, actual evapotranspiration, and surface runoff were 307, 190, and 199 mm, respectively. The findings of the WetSpass-M model are intended to support integrated groundwater modeling. The analysis of simulation results shows that WetSpass-M model works properly to simulate hydrological water budget components in the Drava basin. Moreover, a better understanding of the simulated long-term average spatial distribution about water balance components is useful for managing and planning the available water resources in the Drava basin. View Full-Text
Keywords: Groundwater Recharge; WetSpass-M Model; Water Balance; Drava Basin; Hungary Groundwater Recharge; WetSpass-M Model; Water Balance; Drava Basin; Hungary
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Salem, A.; Dezső, J.; El-Rawy, M. Assessment of Groundwater Recharge, Evaporation, and Runoff in the Drava Basin in Hungary with the WetSpass Model. Hydrology 2019, 6, 23.

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