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 […]
Computation of Runoff Rate from a Watershed: 3 Methods | Geography
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Estimation of Runoff from a Catchment | Precipitation | Geography
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The runoff from a catchment is estimated by the following methods: 1. Standard Tables 2. Empirical Formulae 3. Rainfall Runoff Correlation. Method # 1. Standard Tables: Observations of precipitation and the resulting runoff were taken for a number of catchments having different characteristics. Tables are prepared showing the relation between precipitation and the resulting runoff, […]
Factors Affecting Runoff | Functions | Precipitation | Geography
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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 […]