Question: The rainfall pattern recorded over a catchment 5 0 0 km 2 surface area, is as indicated in table 1 : Table 1 : Rainfall

The rainfall pattern recorded over a catchment 500km2 surface area, is as indicated
in table 1:
Table 1: Rainfall records
TIME (hr)1234567
Rainfall (mm)15234521172234
Calculate the Phi Index for the catchment if the total depth of water recorded as
surface runoff is 59mm.

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