Coefficient of Runoff when Peak Discharge for Field Application is Considered Calculator

✖Peak Discharge is the maximum volume flow rate passing a particular location during an event.ⓘ Peak Discharge [Q_p]			+10% -10%
✖Mean Intensity of Precipitation (mm/hr) for a duration equal to tc and an exceedance probability P.ⓘ Mean Intensity of Precipitation [i_tcp]			+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%

✖Runoff Coefficient is a dimensionless coefficient relating the amount of runoff to the amount of precipitation received.ⓘ Coefficient of Runoff when Peak Discharge for Field Application is Considered [C_r]

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Coefficient of Runoff when Peak Discharge for Field Application is Considered Solution

STEP 0: Pre-Calculation Summary

Formula Used

Runoff Coefficient = Peak Discharge/((1/3.6)*Mean Intensity of Precipitation*Drainage Area)
C_r = Q_p/((1/3.6)*i_tcp*A_D)
This formula uses 4 Variables

Variables Used

Runoff Coefficient - Runoff Coefficient is a dimensionless coefficient relating the amount of runoff to the amount of precipitation received.
Peak Discharge - (Measured in Cubic Meter per Second) - Peak Discharge is the maximum volume flow rate passing a particular location during an event.
Mean Intensity of Precipitation - (Measured in Meter per Second) - Mean Intensity of Precipitation (mm/hr) for a duration equal to tc and an exceedance probability P.
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.

STEP 1: Convert Input(s) to Base Unit

Peak Discharge: 4 Cubic Meter per Second --> 4 Cubic Meter per Second No Conversion Required
Mean Intensity of Precipitation: 5.76 Millimeter per Hour --> 1.6E-06 Meter per Second (Check conversion here)
Drainage Area: 18 Square Kilometer --> 18000000 Square Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

C_r = Q_p/((1/3.6)*i_tcp*A_D) --> 4/((1/3.6)*1.6E-06*18000000)

Evaluating ... ...

C_r = 0.5

STEP 3: Convert Result to Output's Unit

0.5 --> No Conversion Required

FINAL ANSWER

0.5 <-- Runoff Coefficient

(Calculation completed in 00.004 seconds)

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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

Coefficient of Runoff when Peak Discharge for Field Application is Considered Formula

LaTeX Go

Runoff Coefficient = Peak Discharge/((1/3.6)*Mean Intensity of Precipitation*Drainage Area)
C_r = Q_p/((1/3.6)*i_tcp*A_D)

What is Surface Runoff & Drainage Area?

Surface runoff is water, from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called overland flow. A land area which produces runoff draining to a common point is called a watershed.
A Drainage area is the total surface area, upstream of a point on a stream, where the water from rain, snowmelt, or irrigation which is not absorbed into the ground flows over the ground surface, back into streams, to finally reach that point.

What is Peak Discharge & explain use of Runoff Coefficient?

The maximum rate of discharge during the period of runoff caused by a storm is called a peak flow. The information about peak flows and associated volume of runoff during various floods that have been observed in the past can be compiled by the analysis of the observed discharge data and runoff hydrographs.
Runoff coefficient is a dimensionless factor that is used to convert the rainfall amounts to runoff. It represents the integrated effect of catchment losses and hence depends upon the nature of the land surface, slope, degree of saturation, and rainfall intensity. It is a larger value for areas with low infiltration and high runoff (pavement, steep gradient), and lower for permeable, well-vegetated areas (forest, flat land).

How to Calculate Coefficient of Runoff when Peak Discharge for Field Application is Considered?

Coefficient of Runoff when Peak Discharge for Field Application is Considered calculator uses Runoff Coefficient = Peak Discharge/((1/3.6)*Mean Intensity of Precipitation*Drainage Area) to calculate the Runoff Coefficient, The Coefficient of Runoff when Peak Discharge for Field Application is Considered formula is defined as the dimensionless coefficient relating the amount of runoff to the amount of precipitation received. Runoff Coefficient is denoted by C_r symbol.

How to calculate Coefficient of Runoff when Peak Discharge for Field Application is Considered using this online calculator? To use this online calculator for Coefficient of Runoff when Peak Discharge for Field Application is Considered, enter Peak Discharge (Q_p), Mean Intensity of Precipitation (i_tcp) & Drainage Area (A_D) and hit the calculate button. Here is how the Coefficient of Runoff when Peak Discharge for Field Application is Considered calculation can be explained with given input values -> 0.5 = 4/((1/3.6)*1.6E-06*18000000).

FAQ

What is Coefficient of Runoff when Peak Discharge for Field Application is Considered?

The Coefficient of Runoff when Peak Discharge for Field Application is Considered formula is defined as the dimensionless coefficient relating the amount of runoff to the amount of precipitation received and is represented as C_r = Q_p/((1/3.6)*i_tcp*A_D) or Runoff Coefficient = Peak Discharge/((1/3.6)*Mean Intensity of Precipitation*Drainage Area). Peak Discharge is the maximum volume flow rate passing a particular location during an event, Mean Intensity of Precipitation (mm/hr) for a duration equal to tc and an exceedance probability P & 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.

How to calculate Coefficient of Runoff when Peak Discharge for Field Application is Considered?

The Coefficient of Runoff when Peak Discharge for Field Application is Considered formula is defined as the dimensionless coefficient relating the amount of runoff to the amount of precipitation received is calculated using Runoff Coefficient = Peak Discharge/((1/3.6)*Mean Intensity of Precipitation*Drainage Area). To calculate Coefficient of Runoff when Peak Discharge for Field Application is Considered, you need Peak Discharge (Q_p), Mean Intensity of Precipitation (i_tcp) & Drainage Area (A_D). With our tool, you need to enter the respective value for Peak Discharge, Mean Intensity of Precipitation & Drainage Area 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 Runoff Coefficient?

In this formula, Runoff Coefficient uses Peak Discharge, Mean Intensity of Precipitation & Drainage Area. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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