Presentation on theme: "flood Modelling of Kalu-Ganga river basin"— Presentation transcript:
1 flood Modelling of Kalu-Ganga river basin H. K. NandalalDepartment of Civil Engineering University of Peradeniya Peradeniya Sri Lanka
2 IntroductionProblems related to flooding have greatly increased over recent decades because ofpopulation growthdevelopment of extensive infrastructures in close proximity to riversIt is importance to find solutions byutilizing modern technology like Geographic Information Systems (GIS), Remote Sensing (RS) andflood modeling
3 Outline of the Presentation Study areaData usedSoftware usedApplication of SoftwareHEC-HMSHEC-RASENVI
4 Study Area Kalu-Ganga river basin in Sri Lanka Total catchment area is km2Entire basin lies within the wet zone.Average annual runoff is around 7600 MCM.Catchment experiences average annual rainfall of 4000 mm.
5 Study Area Study concentrates on the lower reaches of the river Area of interest is nearly 500 km2This includes 5 Divisional Administrative Divisions (DSD)