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Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess Formula

GoLag Time of 1-h Unit Hydrograph Formula

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Lag Time of a 1-h Unit Hydrograph is the time interval from the midpoint of the rainfall excess to the peak. Check FAQs

T p1 = \frac{D}{1.1}

T_p1 - Lag Time of a 1-h Unit Hydrograph?D - Duration of Excess Rainfall in Hours?

Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess Example

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Here is how the Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess equation looks like with Values.

Here is how the Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess equation looks like with Units.

Here is how the Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess equation looks like.

2.2 = \frac{2.42}{1.1}

2.2h = \frac{2.42h}{1.1}

2.2 = \frac{2.42}{1.1}

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Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess Solution

Follow our step by step solution on how to calculate Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess?

FIRST Step Consider the formula

T p1 = \frac{D}{1.1}

Next Step Substitute values of Variables

∴

T p1 = \frac{2.42h}{1.1}

Next Step Convert Units

∴

T p1 = \frac{8712s}{1.1}

Next Step Prepare to Evaluate

∴

T p1 = \frac{8712}{1.1}

Next Step Evaluate

∴

T p1 = 7920s

LAST Step Convert to Output's Unit

∴

T p1 = 2.2h

Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess Formula Elements

Variables

Lag Time of a 1-h Unit Hydrograph

Lag Time of a 1-h Unit Hydrograph is the time interval from the midpoint of the rainfall excess to the peak.

Symbol: T_p1

Measurement: TimeUnit: h

Note: Value should be greater than 0.

Formulas to find Lag Time of a 1-h Unit Hydrograph

Duration of Excess Rainfall in Hours

Duration of Excess Rainfall in Hours is time during which continuous rain is observed at a given point or within a given area.

Symbol: D

Measurement: TimeUnit: h

Note: Value should be greater than 0.

Formulas to find Duration of Excess Rainfall in Hours

Other Formulas to find Lag Time of a 1-h Unit Hydrograph

Go Lag Time of 1-h Unit Hydrograph

T p1 = \frac{1.56}{{(\frac{Q pd}{A})}^{0.9}}

Other formulas in The Indian Practice category

Go Peak Discharge of D-h Unit Hydrograph

Q pd = 1.79 \cdot A^{\frac{3}{4}}

Go Peak Discharge of D-h Unit Hydrograph for Weighted Mean Slope Lesser than 0.0028

Q pd = 37.4 \cdot A^{\frac{3}{4}} \cdot {S m}^{\frac{2}{3}}

Go Catchment Area given Peak Discharge of D-h Unit Hydrograph

A = {(\frac{Q pd}{1.79})}^{\frac{4}{3}}

Go Weighted Mean Slope given Peak Discharge of D-h Unit Hydrograph

S m = {(\frac{Q pd}{37.4 \cdot A^{\frac{3}{4}}})}^{\frac{3}{2}}

How to Evaluate Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess?

Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess evaluator uses Lag Time of a 1-h Unit Hydrograph = Duration of Excess Rainfall in Hours/1.1 to evaluate the Lag Time of a 1-h Unit Hydrograph, The Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess formula is defined as the delay between the maximum rainfall amount and the peak discharge. Lag Time of a 1-h Unit Hydrograph is denoted by T_p1 symbol.

How to evaluate Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess using this online evaluator? To use this online evaluator for Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess, enter Duration of Excess Rainfall in Hours (D) and hit the calculate button.

FAQs on Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess

What is the formula to find Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess?

The formula of Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess is expressed as Lag Time of a 1-h Unit Hydrograph = Duration of Excess Rainfall in Hours/1.1. Here is an example- 0.000611 = 8712/1.1.

How to calculate Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess?

With Duration of Excess Rainfall in Hours (D) we can find Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess using the formula - Lag Time of a 1-h Unit Hydrograph = Duration of Excess Rainfall in Hours/1.1.

What are the other ways to Calculate Lag Time of a 1-h Unit Hydrograph?

Here are the different ways to Calculate Lag Time of a 1-h Unit Hydrograph-

Lag Time of a 1-h Unit Hydrograph=1.56/((Peak discharge of a D-h Unit hydrograph/Area of Catchment)^0.9)

Can the Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess be negative?

No, the Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess, measured in Time cannot be negative.

Which unit is used to measure Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess?

Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess is usually measured using the Hour[h] for Time. Second[h], Millisecond[h], Microsecond[h] are the few other units in which Lag Time of 1-h Unit Hydrograph given Duration of Rainfall Excess can be measured.

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