ABSTRACT
Runoff is the portion of rainfall which flows over the land surface and reaches the watershed outlet and discharges into any stream or channel. The application of appropriate rainwater harvesting technology is important for the utilization of rainwater as a water resource. The fan shaped watershed produces higher peak runoff rate as compared to the fern shaped watershed. Under given rainfall characteristics, the size of watershed directly affects the runoff yield. The land use of the watershed has a prominent effect on the runoff. Vegetation intercepts the rain water and increases the infiltration in the soil. The term topographic characteristics mean the undulating nature of the watershed. The drainage density is defined as the ratio of the length of all the channels in the watershed to the total area of the watershed. The graphic recorder provides a continuous pen and ink trace of the water level on a chart, which is graduated to record both water level and time.
