Accurate computation of runoff amount from a watershed is difficult, as it depends on several factors concerned with the atmosphere and watershed characteristics, to evaluate which effect on runoff is not so easy. On the basis of field experiences and observations, the following methods are frequently used in the field of soil and water conservation for estimating the maximum or [...]
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 [...]