Abstract
This paper focuses on the flash flood assessmentusing a spatially-distributed hydrological model based onthe Monte Carlo simulation method. The model is implementedas r.sim.water module in GRASS GIS and was appliedto the Malá Svinka Basin in Eastern Slovakia where aheavy rainfall (100 mm/hr.) caused a flash flood event withdeadly consequences in July 1998. The event was simulatedusing standard datasets representing elevation, soilsand land cover. The results were captured in time seriesof water depth maps showing gradual changes in waterdepths across the basin. The hydrological effects of roadsin the study area were simulated using the preferentialflow feature of the model. This simulation helped to identifysource areas contributing to flooding in built-up areas.The implementation in a GIS environment simplifiesthe data preparation and eventual modification for variousscenarios and flood protection measures. The simulationconfirmed excellent robustness and flexibility of themethod.
References
[1] Marchi, L., Borga, M., Preciso, E., Gaume, E., Characterisationof selected flash floods in Europe and implications for flood riskmanagement, J. Hydrol., 2010, 394, 118–133.10.1016/j.jhydrol.2010.07.017Search in Google Scholar
[2] Loóczy, D., Czigány, S., Pirkhoffer, E., Flash Flood Hazards, In:Kumarasamy, M. (Ed.) Studies onWaterManagement Issues, In-Tech, 2012.10.5772/28775Search in Google Scholar
[3] Solín, L., Feranec, J., Novácek, J., Land cover changes in smallcatchments in Slovakia during 1990-2006 and their effects onfrequency of flood events, Nat. Hazards, 2010, 56, 195–214.10.1007/s11069-010-9562-1Search in Google Scholar
[4] Minea, G., Assessment of the Flash Flood Potential of BascaRiver Catchment (Romania) Based on Physiographic Factors.Cent. Eur. J. Geosci., 2013, 5, 344–353.10.2478/s13533-012-0137-4Search in Google Scholar
[5] Maidment, D.R., Handbook of Hydrology, McGraw-Hill, NewYork, 1993.Search in Google Scholar
[6] Saghafian, B., Implementation of a distributed hydrologicmodel within Geographic Resources Analysis Support System(GRASS), Proceedings of the Second International Conferenceon Integrating Environmental Models and GIS, Breckenridge,CO, USA, 1993.Search in Google Scholar
[7] Neteler, M., Mitasova, H., Open Source GIS: A GRASS GIS Approach,Third Edition, The International Series in Engineeringand Computer Science: Vol. 773, Springer New York Inc., 2008.10.1007/978-0-387-68574-8Search in Google Scholar
[8] Hofierka, J., Mitasova, H., Mitas, L., GRASS and modeling landscapeprocesses using duality between particles and fields. In:Ciolli M., Zatelli P. (Eds.): Proceedings of the Open Source FreeSoftware GIS - GRASS users conference 2002, Trento, Italy 11-13September, 2002.Search in Google Scholar
[9] Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore,A., Mitas L., Path sampling method for modeling overland waterflow, sediment transport and short term terrain evolution inOpen Source GIS. In: C.T. Miller, M.W. Farthing, V.G. Gray, G.F.Pinder (Eds.): Proceedings of the XVth International Conferenceon Computational Methods inWater Resources (CMWRXV), June13-17 2004, Chapel Hill, NC, USA, Elsevier, 2004, 1479–1490.Search in Google Scholar
[10] Mitas, L., Mitasova, H., Distributed soil erosion simulation foreffective erosion prevention,Water Resour. Res. 1998, 34, 505–516.Search in Google Scholar
[11] Julien, P. Y., Saghafian, B., Ogden, F. L., Raster-based hydrologicmodeling of spatially-varied surface runoff.Water Resour. Bull.,AWRA, 31, 1995, 523–536.10.1111/j.1752-1688.1995.tb04039.xSearch in Google Scholar
[12] Vieux, B.E., Distributed Hydrologic Modeling Using GIS, KluwerAcademic Publishers, Dordrecht, Water Trans. 48, 2004.Search in Google Scholar
[13] Engman, E.T., Roughness coefficient for routing surface runoff.J. Irrig. Drain. Eng., 1986, 112, 39–53.10.1061/(ASCE)0733-9437(1986)112:1(39)Search in Google Scholar
[14] Syme, W.J., Flooding in urban areas - 2D modelling approachesfor buildings and fences. In: Engineers Australia, 9th NationalConference on Hydraulics inWater Engineering, Darwin Convention Centre, Australia, 2008.Search in Google Scholar
[15] Kidwell, M.R., Weltz, M.A., Guertin, D.P., Estimation of Green-Ampt effective hydraulic conductivity for rangelands, J. RangeManage., 1997, 50, 290–299.10.2307/4003732Search in Google Scholar
[16] Svoboda A., Pekárová P., Katastrofálna povoden z júla 1998 vpovodíMalej Svinky - simulácia jej priebehu, Catastrophic floodof July 1998 in the Malá Svinka catchment - its simulation.J. Hydrol. Hydromech., 1998, 46, 356–365 (in Slovak with Englishsummary).10.1177/216507999804600708Search in Google Scholar
[17] Gallay, M., Lloyd, C. McKinley, J., Barry, L., Assessing modernground survey methods and airborne laser scanning for digitalterrain modelling: A case study from the Lake District, England.Comput. Geosci., 2013, 51, 216–227. 10.1016/j.cageo.2012.08.015Search in Google Scholar
©2015 J. Hofierka and M. Knutová
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