The factors affecting the runoff are as follows: 1. Precipitation 2. Size and Shape of the Catchment Area 3. Geographical Characteristics 4. Meteorological Characteristics 5. Drainage Net 6. Other Factors. Factor # 1. Precipitation: The runoff is clearly a function of precipitation, its intensity, its duration and its coverage. More the intensity, more will be the runoff. The infiltration rate [...]
In this article we will discuss about:- 1. Meaning of Runoff 2. Process of Runoff 3. Sources or Components. Meaning of Runoff: Runoff is that part of precipitation that appears in a drainage channel as surface flow in a perennial or an intermittent from. It is that part of water, which can be used for engineering purposes and hence is [...]
In this article we will discuss about:- 1. Meaning of Catchment Area 2. Slope of a Catchment Area 3. Relation of Catchment Area with Its Length 4. Watershed Leakage 5. Classification of Catchment Areas 6. Karst Topography 7. Catchment Flow Characteristics. Meaning of Catchment Area: Catchment area may be defined as the area from which the surface runoff is derived. [...]