Peak value of runoff Calculator

✖Runoff Coefficient is a dimensionless coefficient relating the amount of runoff to the amount of precipitation received.ⓘ Runoff Coefficient [C_r]			+10% -10%
✖Drainage Area is the total surface area, where the water from rain which is not absorbed into the ground flows over the ground surface, back into streams, to finally reach that point.ⓘ Drainage Area [A_D]			+10% -10%
✖Intensity of Rainfall is the ratio of the total amount of rain (rainfall depth) falling during a given period to the duration of the period.ⓘ Intensity of Rainfall [i]			+10% -10%

✖Peak Discharge is the maximum volume flow rate passing a particular location during an event.ⓘ Peak value of runoff [Q_p]

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Peak value of runoff Solution

STEP 0: Pre-Calculation Summary

Formula Used

Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall
Q_p = C_r*A_D*i
This formula uses 4 Variables

Variables Used

Peak Discharge - (Measured in Cubic Meter per Second) - Peak Discharge is the maximum volume flow rate passing a particular location during an event.
Runoff Coefficient - Runoff Coefficient is a dimensionless coefficient relating the amount of runoff to the amount of precipitation received.
Drainage Area - (Measured in Square Meter) - Drainage Area is the total surface area, where the water from rain which is not absorbed into the ground flows over the ground surface, back into streams, to finally reach that point.
Intensity of Rainfall - (Measured in Meter per Second) - Intensity of Rainfall is the ratio of the total amount of rain (rainfall depth) falling during a given period to the duration of the period.

STEP 1: Convert Input(s) to Base Unit

Runoff Coefficient: 0.5 --> No Conversion Required
Drainage Area: 18 Square Kilometer --> 18000000 Square Meter (Check conversion here)
Intensity of Rainfall: 1.6 Millimeter per Hour --> 4.44444444444444E-07 Meter per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_p = C_r*A_D*i --> 0.5*18000000*4.44444444444444E-07

Evaluating ... ...

Q_p = 4

STEP 3: Convert Result to Output's Unit

4 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

4 Cubic Meter per Second <-- Peak Discharge

(Calculation completed in 00.020 seconds)

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Coorg Institute of Technology (CIT), Coorg

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< Rational Method to Estimate the Flood Peak Calculators

Intensity of Rainfall when Peak Discharge is Considered

LaTeX Go Intensity of Rainfall = Peak Discharge/(Runoff Coefficient*Drainage Area)

Coefficient of Runoff when Peak Value is Considered

LaTeX Go Runoff Coefficient = Peak Discharge/(Drainage Area*Intensity of Rainfall)

Drainage Area when Peak Discharge is Considered

LaTeX Go Drainage Area = Peak Discharge/(Intensity of Rainfall*Runoff Coefficient)

Value of Peak Discharge

LaTeX Go Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall

Peak value of runoff Formula

LaTeX Go

Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall
Q_p = C_r*A_D*i

What is Peak Value of the Runoff?

Peak Runoff or the variations of runoff with time (hydrograph) at the watershed outlet by the rational methods. The maximum flow at outlet thus attained is called peak flow of runoff.

How to Calculate Peak value of runoff?

Peak value of runoff calculator uses Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall to calculate the Peak Discharge, The Peak Value of Runoff formula is defined as the product of the C runoff coefficient, the rainfall intensity I, and A the sub-catchment area. Peak Discharge is denoted by Q_p symbol.

How to calculate Peak value of runoff using this online calculator? To use this online calculator for Peak value of runoff, enter Runoff Coefficient (C_r), Drainage Area (A_D) & Intensity of Rainfall (i) and hit the calculate button. Here is how the Peak value of runoff calculation can be explained with given input values -> 4 = 0.5*18000000*4.44444444444444E-07.

FAQ

What is Peak value of runoff?

The Peak Value of Runoff formula is defined as the product of the C runoff coefficient, the rainfall intensity I, and A the sub-catchment area and is represented as Q_p = C_r*A_D*i or Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall. Runoff Coefficient is a dimensionless coefficient relating the amount of runoff to the amount of precipitation received, Drainage Area is the total surface area, where the water from rain which is not absorbed into the ground flows over the ground surface, back into streams, to finally reach that point & Intensity of Rainfall is the ratio of the total amount of rain (rainfall depth) falling during a given period to the duration of the period.

How to calculate Peak value of runoff?

The Peak Value of Runoff formula is defined as the product of the C runoff coefficient, the rainfall intensity I, and A the sub-catchment area is calculated using Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall. To calculate Peak value of runoff, you need Runoff Coefficient (C_r), Drainage Area (A_D) & Intensity of Rainfall (i). With our tool, you need to enter the respective value for Runoff Coefficient, Drainage Area & Intensity of Rainfall and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Peak Discharge?

In this formula, Peak Discharge uses Runoff Coefficient, Drainage Area & Intensity of Rainfall. We can use 3 other way(s) to calculate the same, which is/are as follows -

Peak Discharge = Runoff Coefficient*Drainage Area*Intensity of Rainfall
Peak Discharge = (1/3.6)*Runoff Coefficient*Mean Intensity of Precipitation*Drainage Area
Peak Discharge = (1/3.6)*Runoff Coefficient*Mean Intensity of Precipitation*Drainage Area

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