Duration of Effective Rainfall for given Time of Peak Calculator

✖Time of Peak is the time interval from the start of rainfall to the peak discharge.ⓘ Time of Peak [T_p]			+10% -10%
✖Time of Concentration is a concept used in hydrology to measure the response of a watershed to a rain event.ⓘ Time of Concentration [t_c]			+10% -10%

✖Standard Duration of Effective Rainfall as adopted by Snyder.ⓘ Duration of Effective Rainfall for given Time of Peak [t_r]

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Formula

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Duration of Effective Rainfall for given Time of Peak

Formula

`"t"_{"r"} = 2*("T"_{"p"}-0.6*"t"_{"c"})`

Example

`"2h"=2*("7h"-0.6*"10h")`

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Duration of Effective Rainfall for given Time of Peak Solution

STEP 0: Pre-Calculation Summary

Formula Used

Standard Duration of Effective Rainfall = 2*(Time of Peak-0.6*Time of Concentration)
t_r = 2*(T_p-0.6*t_c)
This formula uses 3 Variables

Variables Used

Standard Duration of Effective Rainfall - (Measured in Hour) - Standard Duration of Effective Rainfall as adopted by Snyder.
Time of Peak - (Measured in Hour) - Time of Peak is the time interval from the start of rainfall to the peak discharge.
Time of Concentration - (Measured in Hour) - Time of Concentration is a concept used in hydrology to measure the response of a watershed to a rain event.

STEP 1: Convert Input(s) to Base Unit

Time of Peak: 7 Hour --> 7 Hour No Conversion Required
Time of Concentration: 10 Hour --> 10 Hour No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_r = 2*(T_p-0.6*t_c) --> 2*(7-0.6*10)

Evaluating ... ...

t_r = 2

STEP 3: Convert Result to Output's Unit

7200 Second -->2 Hour (Check conversion here)

FINAL ANSWER

2 Hour <-- Standard Duration of Effective Rainfall

(Calculation completed in 00.004 seconds)

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Coorg Institute of Technology (CIT), Coorg

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< 13 SCS Triangular Unit Hydrograph Calculators

Time of Concentration given Time of Peak

Go Time of Concentration = (Time of Peak-(Standard Duration of Effective Rainfall/2))/0.6

Duration of Effective Rainfall for given Time of Peak

Go Standard Duration of Effective Rainfall = 2*(Time of Peak-0.6*Time of Concentration)

Time of Peak given Time of Concentration

Go Time of Peak = 0.6*Time of Concentration+Standard Duration of Effective Rainfall/2

Duration of Effective Rainfall given Time of Peak

Go Standard Duration of Effective Rainfall = 2*(Time of Peak-Basin Lag)

Time of Peak or Time of Rise

Go Time of Peak = (Standard Duration of Effective Rainfall/2)+Basin Lag

Lag Time given Time of Peak

Go Basin Lag = Time of Peak-Standard Duration of Effective Rainfall/2

Catchment Area given Peak Discharge

Go Area of Catchment = Time of Peak*Peak Discharge/2.08

Time of Peak given Peak Discharge

Go Time of Peak = 2.08*Area of Catchment/Peak Discharge

Peak Discharge

Go Peak Discharge = 2.08*Area of Catchment/Time of Peak

Time of Recession as Suggested in SCS

Go Time of Recession = 1.67*Time of Peak

Time of Peak given Time of Recession

Go Time of Peak = Time of Recession/1.67

Base Length in SCS Triangular Unit Hydrograph

Go Base Length = 2.67*Time of Peak

Time of Peak given Base Length

Go Time of Peak = Base Length/2.67

Duration of Effective Rainfall for given Time of Peak Formula

Standard Duration of Effective Rainfall = 2*(Time of Peak-0.6*Time of Concentration)
t_r = 2*(T_p-0.6*t_c)

What is Basin Lag?

Basin lag time, defined as the elapsed time between the occurrences of the centroids of the effective rainfall. and of the storm runoff hydrograph, is an important factor in determining the time to peak of the unit. hydrograph and the intensity of peak discharge.

What is Baseflow?

Baseflow is a portion of streamflow that is not directly generated from the excess rainfall during a storm event. In other words, this is the flow that would exist in the stream without the contribution of direct runoff from the rainfall.

How to Calculate Duration of Effective Rainfall for given Time of Peak?

Duration of Effective Rainfall for given Time of Peak calculator uses Standard Duration of Effective Rainfall = 2*(Time of Peak-0.6*Time of Concentration) to calculate the Standard Duration of Effective Rainfall, The Duration of Effective Rainfall for given Time of Peak formula is defined as the precipitation equals the difference between total rainfall and actual evapotranspiration. Standard Duration of Effective Rainfall is denoted by t_r symbol.

How to calculate Duration of Effective Rainfall for given Time of Peak using this online calculator? To use this online calculator for Duration of Effective Rainfall for given Time of Peak, enter Time of Peak (T_p) & Time of Concentration (t_c) and hit the calculate button. Here is how the Duration of Effective Rainfall for given Time of Peak calculation can be explained with given input values -> 0.000556 = 2*(25200-0.6*36000).

FAQ

What is Duration of Effective Rainfall for given Time of Peak?

The Duration of Effective Rainfall for given Time of Peak formula is defined as the precipitation equals the difference between total rainfall and actual evapotranspiration and is represented as t_r = 2*(T_p-0.6*t_c) or Standard Duration of Effective Rainfall = 2*(Time of Peak-0.6*Time of Concentration). Time of Peak is the time interval from the start of rainfall to the peak discharge & Time of Concentration is a concept used in hydrology to measure the response of a watershed to a rain event.

How to calculate Duration of Effective Rainfall for given Time of Peak?

The Duration of Effective Rainfall for given Time of Peak formula is defined as the precipitation equals the difference between total rainfall and actual evapotranspiration is calculated using Standard Duration of Effective Rainfall = 2*(Time of Peak-0.6*Time of Concentration). To calculate Duration of Effective Rainfall for given Time of Peak, you need Time of Peak (T_p) & Time of Concentration (t_c). With our tool, you need to enter the respective value for Time of Peak & Time of Concentration 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 Standard Duration of Effective Rainfall?

In this formula, Standard Duration of Effective Rainfall uses Time of Peak & Time of Concentration. We can use 1 other way(s) to calculate the same, which is/are as follows -

Standard Duration of Effective Rainfall = 2*(Time of Peak-Basin Lag)

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