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Open Geosciences

formerly Central European Journal of Geosciences

Editor-in-Chief: Jankowski, Piotr

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IMPACT FACTOR 2016 (Open Geosciences): 0.475

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2391-5447
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Simulating spatial aspects of a flash flood using the Monte Carlo method and GRASS GIS: a case study of the Malá Svinka Basin (Slovakia)

Jaroslav Hofierka
  • Institute of Geography, Faculty of Science, Pavol Jozef Šafárik University in Košice, Jesenná 5, 04001 Košice, Slovak Republic
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Monika Knutová
Published Online: 2015-04-01 | DOI: https://doi.org/10.1515/geo-2015-0013

Abstract

This paper focuses on the flash flood assessment using a spatially-distributed hydrological model based on the Monte Carlo simulation method. The model is implemented as r.sim.water module in GRASS GIS and was applied to the Malá Svinka Basin in Eastern Slovakia where a heavy rainfall (100 mm/hr.) caused a flash flood event with deadly consequences in July 1998. The event was simulated using standard datasets representing elevation, soils and land cover. The results were captured in time series of water depth maps showing gradual changes in water depths across the basin. The hydrological effects of roads in the study area were simulated using the preferential flow feature of the model. This simulation helped to identify source areas contributing to flooding in built-up areas. The implementation in a GIS environment simplifies the data preparation and eventual modification for various scenarios and flood protection measures. The simulation confirmed excellent robustness and flexibility of the method.

Keywords: flash flood; overland flow; Monte Carlo; GRASS GIS; SIMWE

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About the article

Received: 2014-06-03

Accepted: 2014-09-26

Published Online: 2015-04-01


Citation Information: Open Geosciences, ISSN (Online) 2391-5447, DOI: https://doi.org/10.1515/geo-2015-0013.

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©2015 J. Hofierka and M. Knutová. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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