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Modified Basin Lag for an effective duration rainfall. Check FAQs
t'p=tp+tR-tr4
t'p - Modified Basin Lag?tp - Basin Lag?tR - Non-standard rainfall duration?tr - Standard Duration of Effective Rainfall?

Modified Equation for Basin Lag for Effective Duration Example

With values
With units
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Here is how the Modified Equation for Basin Lag for Effective Duration equation looks like with Values.

Here is how the Modified Equation for Basin Lag for Effective Duration equation looks like with Units.

Here is how the Modified Equation for Basin Lag for Effective Duration equation looks like.

6Edit=6Edit+2Edit-2Edit4
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Modified Equation for Basin Lag for Effective Duration Solution

Follow our step by step solution on how to calculate Modified Equation for Basin Lag for Effective Duration?

FIRST Step Consider the formula
t'p=tp+tR-tr4
Next Step Substitute values of Variables
t'p=6h+2h-2h4
Next Step Convert Units
t'p=21600s+7200s-7200s4
Next Step Prepare to Evaluate
t'p=21600+7200-72004
Next Step Evaluate
t'p=21600s
LAST Step Convert to Output's Unit
t'p=6h

Modified Equation for Basin Lag for Effective Duration Formula Elements

Variables
Modified Basin Lag
Modified Basin Lag for an effective duration rainfall.
Symbol: t'p
Measurement: TimeUnit: h
Note: Value should be greater than 0.
Basin Lag
Basin Lag is the elapsed time between the occurrences of the centroids of the effective rainfall.
Symbol: tp
Measurement: TimeUnit: h
Note: Value should be greater than 0.
Non-standard rainfall duration
Non-standard rainfall duration to derive modified basin lag.
Symbol: tR
Measurement: TimeUnit: h
Note: Value should be greater than 0.
Standard Duration of Effective Rainfall
Standard Duration of Effective Rainfall as adopted by Snyder.
Symbol: tr
Measurement: TimeUnit: h
Note: Value should be greater than 0.

Other Formulas to find Modified Basin Lag

​Go Modified Basin Lag given Peak Discharge for Nonstandard Effective Rainfall
t'p=2.78CrAQp
​Go Modified Basin Lag for Effective Duration
t'p=(21tp22)+(tR4)
​Go Modified Basin Lag given Time Base
t'p=tb-723

Other formulas in Synder's Synthetic Unit Hydrograph category

​Go Peak Discharge for Nonstandard Effective Rainfall
Qp=2.78CpAt'p
​Go Regional Constant given Peak Discharge for Nonstandard Effective Rainfall
Cp=Qpt'p2.78A
​Go Catchment Area given Peak Discharge for Nonstandard Effective Rainfall
A=Qpt'p2.78Cr
​Go Basin Lag given Modified Basin Lag
tp=t'p-(tR4)2122

How to Evaluate Modified Equation for Basin Lag for Effective Duration?

Modified Equation for Basin Lag for Effective Duration evaluator uses Modified Basin Lag = Basin Lag+(Non-standard rainfall duration-Standard Duration of Effective Rainfall)/4 to evaluate the Modified Basin Lag, The Modified Equation for Basin Lag for Effective Duration formula is 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. Modified Basin Lag is denoted by t'p symbol.

How to evaluate Modified Equation for Basin Lag for Effective Duration using this online evaluator? To use this online evaluator for Modified Equation for Basin Lag for Effective Duration, enter Basin Lag (tp), Non-standard rainfall duration (tR) & Standard Duration of Effective Rainfall (tr) and hit the calculate button.

FAQs on Modified Equation for Basin Lag for Effective Duration

What is the formula to find Modified Equation for Basin Lag for Effective Duration?
The formula of Modified Equation for Basin Lag for Effective Duration is expressed as Modified Basin Lag = Basin Lag+(Non-standard rainfall duration-Standard Duration of Effective Rainfall)/4. Here is an example- 0.00173 = 21600+(7200-7200)/4.
How to calculate Modified Equation for Basin Lag for Effective Duration?
With Basin Lag (tp), Non-standard rainfall duration (tR) & Standard Duration of Effective Rainfall (tr) we can find Modified Equation for Basin Lag for Effective Duration using the formula - Modified Basin Lag = Basin Lag+(Non-standard rainfall duration-Standard Duration of Effective Rainfall)/4.
What are the other ways to Calculate Modified Basin Lag?
Here are the different ways to Calculate Modified Basin Lag-
  • Modified Basin Lag=2.78*Regional Constant*Area of Catchment/Peak DischargeOpenImg
  • Modified Basin Lag=(21*Basin Lag/22)+(Non-standard rainfall duration/4)OpenImg
  • Modified Basin Lag=(Time Base-72)/3OpenImg
Can the Modified Equation for Basin Lag for Effective Duration be negative?
No, the Modified Equation for Basin Lag for Effective Duration, measured in Time cannot be negative.
Which unit is used to measure Modified Equation for Basin Lag for Effective Duration?
Modified Equation for Basin Lag for Effective Duration is usually measured using the Hour[h] for Time. Second[h], Millisecond[h], Microsecond[h] are the few other units in which Modified Equation for Basin Lag for Effective Duration can be measured.
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