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Modelling design flood waves in small ungauged basins using GIS

In: Acta Hydrologica Slovaca, vol. 12, no. 2
Michal Danko - Kamila Hlavčová - Silvia Kohnová - Ján Szolgay

Details:

Year, pages: 2011, 340 - 348
Keywords:
design flood waves, GIS, time of concentration, method of CN curves
Original source URL: http://www.ih.savba.sk/ah
About article:
MODELLING DESIGN FLOOD WAVES IN SMALL UNGAUGED BASINS USING GIS. In the paper a GIS based approach for simulating design discharges and flood waves in small ungauged catchments is presented. The methodology proposed is taking account spatial variability of physical and geographical catchment’s properties and formation of runoff on the basin. The flood wave is simulated from the design precipitation with the duration equals to time of concentration. For determining effective precipitation the CN curves are applied. Time of concentration is calculated in GIS on the base of spatially distributed flow trajectories and velocities on the basin; the flood wave is calculated using the methodology of time area hydrogram. The value of maximum discharge of the simulated design flood wave with the return period of 100 years for a selected basin is compared with values achieved by statistical and regional methods.
How to cite:
ISO 690:
Danko, M., Hlavčová, K., Kohnová, S., Szolgay, J. 2011. Modelling design flood waves in small ungauged basins using GIS. In Acta Hydrologica Slovaca, vol. 12, no.2, pp. 340-348. 2644-4690.

APA:
Danko, M., Hlavčová, K., Kohnová, S., Szolgay, J. (2011). Modelling design flood waves in small ungauged basins using GIS. Acta Hydrologica Slovaca, 12(2), 340-348. 2644-4690.