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Geographical Information System module for deriving the flash flood hydrograph in mountainous areas

Domenii publicaţii > Ştiinţele pământului şi planetare + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: Domniţa M., Craciun A.I, Haidu I., Magyari-Sáska Z.

Editorial: WSEAS Press, The 4th European Computing Conference, p.260-265, 2010.

Rezumat:

This work presents a methodology of determining the surface runoff hydrograph when the storm
characteristics are known. The methodology was automated in a Geographic Information System model that can be sed in any study if the user can input the necesarry parameters. The model, built by implementing some well known hydrologic methods in GIS, consists of four components that address the following requirements: the runoff
depth in mm, the runoff coefficient, the travel/concentration time and the discharge. The discharge calculation is
carried out by applying the rational method in each pixel of the watershed to determine the specific discharge for
that pixel. The model was built using a GIS modular approach, and each module can be used independently if the
result of the module is needed for another scope. If data from the meteorological predictions is used as an input, the model can be used as a tool included in a warning system as a method to anticipate flash flood.

Cuvinte cheie: Flash-Flood, Model, Hydrograph, Small Basins, GIS, Hydrology, Automation