Estimation of Runoff from a Catchment | Precipitation | Geography

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, taking into consideration the catchments. [...]