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Duration of Rainfall Excess given Total Runoff Depth Formula

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Duration of Rainfall Excess is the total time in which the rainfall intensity the greater than the average rate of infiltration (in hours). Check FAQs

t e = \frac{P - R d}{φ}

t_e - Duration of Rainfall Excess?P - Total Storm Precipitation?R_d - Total Direct Runoff?φ - Φ-Index?

Duration of Rainfall Excess given Total Runoff Depth Example

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Here is how the Duration of Rainfall Excess given Total Runoff Depth equation looks like with Values.

Here is how the Duration of Rainfall Excess given Total Runoff Depth equation looks like with Units.

Here is how the Duration of Rainfall Excess given Total Runoff Depth equation looks like.

4.3011 = \frac{118 - 117.88}{0.0279}

4.3011h = \frac{118cm - 117.88cm}{0.0279}

4.3011 = \frac{118 - 117.88}{0.0279}

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Duration of Rainfall Excess given Total Runoff Depth Solution

Follow our step by step solution on how to calculate Duration of Rainfall Excess given Total Runoff Depth?

FIRST Step Consider the formula

t e = \frac{P - R d}{φ}

Next Step Substitute values of Variables

∴

t e = \frac{118cm - 117.88cm}{0.0279}

Next Step Prepare to Evaluate

∴

t e = \frac{118 - 117.88}{0.0279}

Next Step Evaluate

∴

t e = 15483.8709677425s

Next Step Convert to Output's Unit

∴

t e = 4.30107526881737h

LAST Step Rounding Answer

∴

t e = 4.3011h

Duration of Rainfall Excess given Total Runoff Depth Formula Elements

Variables

Duration of Rainfall Excess

Duration of Rainfall Excess is the total time in which the rainfall intensity the greater than the average rate of infiltration (in hours).

Symbol: t_e

Measurement: TimeUnit: h

Note: Value should be greater than 0.

Formulas to find Duration of Rainfall Excess

Total Storm Precipitation

Total Storm Precipitation is the annual precipitation of the current year.

Symbol: P

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Total Storm Precipitation

Total Direct Runoff

Total Direct Runoff is the runoff entering stream channels promptly after rainfall or snowmelt.

Symbol: R_d

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Total Direct Runoff

Φ-Index

Φ-Index of a catchment is the constant infiltration capacity that would yield the actual total runoff for a given rainfall amount.

Symbol: φ

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Φ-Index

Other formulas in Φ Index category

Go Duration of Rainfall from Rainfall Hyetograph

D = N \cdot Δt

Go Time Interval of Rainfall Hyetograph

Δt = \frac{D}{N}

Go Pulses of Time Interval from Rainfall Hyetograph

N = \frac{D}{Δt}

Go Total Direct Runoff Depth

R d = P - (φ \cdot t e)

How to Evaluate Duration of Rainfall Excess given Total Runoff Depth?

Duration of Rainfall Excess given Total Runoff Depth evaluator uses Duration of Rainfall Excess = (Total Storm Precipitation-Total Direct Runoff)/Φ-Index to evaluate the Duration of Rainfall Excess, The Duration of Rainfall Excess given Total Runoff Depth formula is defined as a process controlled at the surface of the soil. This occurs when rainfall reaches the soil at a rate in excess of the soil's ability to absorb, which is called infiltrability. Duration of Rainfall Excess is denoted by t_e symbol.

How to evaluate Duration of Rainfall Excess given Total Runoff Depth using this online evaluator? To use this online evaluator for Duration of Rainfall Excess given Total Runoff Depth, enter Total Storm Precipitation (P), Total Direct Runoff (R_d) & Φ-Index (φ) and hit the calculate button.

FAQs on Duration of Rainfall Excess given Total Runoff Depth

What is the formula to find Duration of Rainfall Excess given Total Runoff Depth?

The formula of Duration of Rainfall Excess given Total Runoff Depth is expressed as Duration of Rainfall Excess = (Total Storm Precipitation-Total Direct Runoff)/Φ-Index. Here is an example- 0.001195 = (1.18-1.1788)/0.0279.

How to calculate Duration of Rainfall Excess given Total Runoff Depth?

With Total Storm Precipitation (P), Total Direct Runoff (R_d) & Φ-Index (φ) we can find Duration of Rainfall Excess given Total Runoff Depth using the formula - Duration of Rainfall Excess = (Total Storm Precipitation-Total Direct Runoff)/Φ-Index.

Can the Duration of Rainfall Excess given Total Runoff Depth be negative?

No, the Duration of Rainfall Excess given Total Runoff Depth, measured in Time cannot be negative.

Which unit is used to measure Duration of Rainfall Excess given Total Runoff Depth?

Duration of Rainfall Excess given Total Runoff Depth is usually measured using the Hour[h] for Time. Second[h], Millisecond[h], Microsecond[h] are the few other units in which Duration of Rainfall Excess given Total Runoff Depth can be measured.

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Duration of Rainfall Excess given Total Runoff Depth Formula

Duration of Rainfall Excess given Total Runoff Depth Example

Duration of Rainfall Excess given Total Runoff Depth Solution

Duration of Rainfall Excess given Total Runoff Depth Formula Elements

Other formulas in Φ Index category

How to Evaluate Duration of Rainfall Excess given Total Runoff Depth?

FAQs on Duration of Rainfall Excess given Total Runoff Depth

Variable Name