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5 results for “flood”

Formulae (5)

T = \frac{n+1}{m}

The average interval between floods of a given size (Weibull plotting position).

P = 1 - \left(1 - \frac{1}{T}\right)^{n}

Chance of experiencing at least one flood of return period T over n years.

Q = C\,i\,A

Estimates peak stormwater discharge from a catchment.

V = \frac{1}{n}\,R^{2/3}\,S^{1/2}

Average velocity of water flowing in an open channel or river.

Q = A\,v

Volume of water flowing past a point per unit time.