Abstract

DEVELOPING INSTANTANEOUS UNIT HYDROGRAPHS
Track: Water Resources
Authors: Kalpalatha Nandalal

Developing Instantaneous Unit Hydrograph (IUH) is very important. Developing such hydrograph is a tough task without observed runoff data. In this study it is attempted to build such hydrograph using ArcGIS software for few catchments in Sri Lanka.
In this study the hydrology tool set and raster math tool were used.
The results shows that this method can be apply successfully to derive IUH for basins with promising accuracy.