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Duration of Rainfall Excess given W Index 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 - I a}{W}

t_e - Duration of Rainfall Excess?P - Total Storm Precipitation?R - Total Storm Runoff?I_a - Depression and Interception Losses?W - W-Index?

Duration of Rainfall Excess given W Index Example

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Here is how the Duration of Rainfall Excess given W Index equation looks like with Values.

Here is how the Duration of Rainfall Excess given W Index equation looks like with Units.

Here is how the Duration of Rainfall Excess given W Index equation looks like.

4 = \frac{118 - 48 - 6}{16}

4h = \frac{118cm - 48cm - 6cm}{16cm}

4 = \frac{118 - 48 - 6}{16}

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Duration of Rainfall Excess given W Index Solution

Follow our step by step solution on how to calculate Duration of Rainfall Excess given W Index?

FIRST Step Consider the formula

t e = \frac{P - R - I a}{W}

Next Step Substitute values of Variables

∴

t e = \frac{118cm - 48cm - 6cm}{16cm}

Next Step Prepare to Evaluate

∴

t e = \frac{118 - 48 - 6}{16}

Next Step Evaluate

∴

t e = 14400s

LAST Step Convert to Output's Unit

∴

t e = 4h

Duration of Rainfall Excess given W Index 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 Storm Runoff

Total Storm Runoff is rain that flows off building rooftops, driveways, lawns, streets, parking lots, construction sites, and industrial storage yards.

Symbol: R

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Total Storm Runoff

Depression and Interception Losses

Depression and Interception Losses is the portion of the precipitation that is returned to the atmosphere through evaporation from plant surfaces .

Symbol: I_a

Measurement: LengthUnit: cm

Note: Value can be positive or negative.

Formulas to find Depression and Interception Losses

W-Index

W-Index is the average infiltration rate during the time when the rainfall intensity exceeds the infiltration rate.

Symbol: W

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find W-Index

Other formulas in W Index category

Go W-Index

W = \frac{P - R - I a}{t e}

Go Total Storm Precipitation when W Index

P = (W \cdot t e) + R + I a

Go Total Storm Runoff given W Index

R = P - I a - (W \cdot t e)

Go Initial Losses given W-Index

I a = P - R - (W \cdot t e)

How to Evaluate Duration of Rainfall Excess given W Index?

Duration of Rainfall Excess given W Index evaluator uses Duration of Rainfall Excess = (Total Storm Precipitation-Total Storm Runoff-Depression and Interception Losses)/W-Index to evaluate the Duration of Rainfall Excess, The Duration of Rainfall Excess given W Index formula is defined as the time during which continuous rain is observed, or occurs, at a given point or within a given area. Duration of Rainfall Excess is denoted by t_e symbol.

How to evaluate Duration of Rainfall Excess given W Index using this online evaluator? To use this online evaluator for Duration of Rainfall Excess given W Index, enter Total Storm Precipitation (P), Total Storm Runoff (R), Depression and Interception Losses (I_a) & W-Index (W) and hit the calculate button.

FAQs on Duration of Rainfall Excess given W Index

What is the formula to find Duration of Rainfall Excess given W Index?

The formula of Duration of Rainfall Excess given W Index is expressed as Duration of Rainfall Excess = (Total Storm Precipitation-Total Storm Runoff-Depression and Interception Losses)/W-Index. Here is an example- 0.001111 = (1.18-0.48-0.06)/0.16.

How to calculate Duration of Rainfall Excess given W Index?

With Total Storm Precipitation (P), Total Storm Runoff (R), Depression and Interception Losses (I_a) & W-Index (W) we can find Duration of Rainfall Excess given W Index using the formula - Duration of Rainfall Excess = (Total Storm Precipitation-Total Storm Runoff-Depression and Interception Losses)/W-Index.

Can the Duration of Rainfall Excess given W Index be negative?

No, the Duration of Rainfall Excess given W Index, measured in Time cannot be negative.

Which unit is used to measure Duration of Rainfall Excess given W Index?

Duration of Rainfall Excess given W Index 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 W Index can be measured.

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Duration of Rainfall Excess given W Index Formula

Duration of Rainfall Excess given W Index Example

Duration of Rainfall Excess given W Index Solution

Duration of Rainfall Excess given W Index Formula Elements

Other formulas in W Index category

How to Evaluate Duration of Rainfall Excess given W Index?

FAQs on Duration of Rainfall Excess given W Index

Variable Name