Total Storm Runoff given W Index Calculator

✖Total Storm Precipitation is the annual precipitation of the current year.ⓘ Total Storm Precipitation [P]			+10% -10%
✖Depression and Interception Losses is the portion of the precipitation that is returned to the atmosphere through evaporation from plant surfaces .ⓘ Depression and Interception Losses [I_a]			+10% -10%
✖W-Index is the average infiltration rate during the time when the rainfall intensity exceeds the infiltration rate.ⓘ W-Index [W]			+10% -10%
✖Duration of Rainfall Excess is the total time in which the rainfall intensity the greater than the average rate of infiltration (in hours).ⓘ Duration of Rainfall Excess [t_e]			+10% -10%

✖Total Storm Runoff is rain that flows off building rooftops, driveways, lawns, streets, parking lots, construction sites, and industrial storage yards.ⓘ Total Storm Runoff given W Index [R]

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Formula

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Total Storm Runoff given W Index

Formula

`"R" = "P"-"I"_{"a"}-("W"*"t"_{"e"})`

Example

`"48cm"="118cm"-"6.0cm"-("16.0cm"*"4h")`

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Total Storm Runoff given W Index Solution

STEP 0: Pre-Calculation Summary

Formula Used

Total Storm Runoff = Total Storm Precipitation-Depression and Interception Losses-(W-Index*Duration of Rainfall Excess)
R = P-I_a-(W*t_e)
This formula uses 5 Variables

Variables Used

Total Storm Runoff - (Measured in Centimeter) - Total Storm Runoff is rain that flows off building rooftops, driveways, lawns, streets, parking lots, construction sites, and industrial storage yards.
Total Storm Precipitation - (Measured in Centimeter) - Total Storm Precipitation is the annual precipitation of the current year.
Depression and Interception Losses - (Measured in Centimeter) - Depression and Interception Losses is the portion of the precipitation that is returned to the atmosphere through evaporation from plant surfaces .
W-Index - (Measured in Centimeter) - W-Index is the average infiltration rate during the time when the rainfall intensity exceeds the infiltration rate.
Duration of Rainfall Excess - (Measured in Hour) - Duration of Rainfall Excess is the total time in which the rainfall intensity the greater than the average rate of infiltration (in hours).

STEP 1: Convert Input(s) to Base Unit

Total Storm Precipitation: 118 Centimeter --> 118 Centimeter No Conversion Required
Depression and Interception Losses: 6 Centimeter --> 6 Centimeter No Conversion Required
W-Index: 16 Centimeter --> 16 Centimeter No Conversion Required
Duration of Rainfall Excess: 4 Hour --> 4 Hour No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R = P-I_a-(W*t_e) --> 118-6-(16*4)

Evaluating ... ...

R = 48

STEP 3: Convert Result to Output's Unit

0.48 Meter -->48 Centimeter (Check conversion here)

FINAL ANSWER

48 Centimeter <-- Total Storm Runoff

(Calculation completed in 00.020 seconds)

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Home » Engineering » Civil » Engineering Hydrology » Abstractions from Precipitation » Infiltration Indices » W-Index » Total Storm Runoff given W Index

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Coorg Institute of Technology (CIT), Coorg

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< 5 W-Index Calculators

Duration of Rainfall Excess given W Index

Go Duration of Rainfall Excess = (Total Storm Precipitation-Total Storm Runoff-Depression and Interception Losses)/W-Index

Total Storm Precipitation when W Index

Go Total Storm Precipitation = (W-Index*Duration of Rainfall Excess)+Total Storm Runoff+Depression and Interception Losses

Total Storm Runoff given W Index

Go Total Storm Runoff = Total Storm Precipitation-Depression and Interception Losses-(W-Index*Duration of Rainfall Excess)

Initial Losses given W-Index

Go Depression and Interception Losses = Total Storm Precipitation-Total Storm Runoff-(W-Index*Duration of Rainfall Excess)

W-Index

Go W-Index = (Total Storm Precipitation-Total Storm Runoff-Depression and Interception Losses)/Duration of Rainfall Excess

Total Storm Runoff given W Index Formula

Total Storm Runoff = Total Storm Precipitation-Depression and Interception Losses-(W-Index*Duration of Rainfall Excess)
R = P-I_a-(W*t_e)

What is W-Index?

W-Index is the average infiltration rate during the time when the rainfall intensity exceeds the infiltration rate. Thus, W may be mathematically calculated by dividing the total infiltration. (expressed as a depth of water) divided by the time during which the rainfall occurs.

What is Total Storm Runoff?

Total storm runoff is rain and melting snow that flows off building rooftops, driveways, lawns, streets, parking lots, construction sites, and industrial storage yards. Developed areas are covered by buildings and pavement, which do not allow water to soak into the ground.

How to Calculate Total Storm Runoff given W Index?

Total Storm Runoff given W Index calculator uses Total Storm Runoff = Total Storm Precipitation-Depression and Interception Losses-(W-Index*Duration of Rainfall Excess) to calculate the Total Storm Runoff, The Total Storm Runoff given W Index formula is defined as the flow of water occurring on the ground surface when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate into the soil. Total Storm Runoff is denoted by R symbol.

How to calculate Total Storm Runoff given W Index using this online calculator? To use this online calculator for Total Storm Runoff given W Index, enter Total Storm Precipitation (P), Depression and Interception Losses (I_a), W-Index (W) & Duration of Rainfall Excess (t_e) and hit the calculate button. Here is how the Total Storm Runoff given W Index calculation can be explained with given input values -> 4800 = 1.18-0.06-(0.16*14400).

FAQ

What is Total Storm Runoff given W Index?

The Total Storm Runoff given W Index formula is defined as the flow of water occurring on the ground surface when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate into the soil and is represented as R = P-I_a-(W*t_e) or Total Storm Runoff = Total Storm Precipitation-Depression and Interception Losses-(W-Index*Duration of Rainfall Excess). Total Storm Precipitation is the annual precipitation of the current year, Depression and Interception Losses is the portion of the precipitation that is returned to the atmosphere through evaporation from plant surfaces , W-Index is the average infiltration rate during the time when the rainfall intensity exceeds the infiltration rate & Duration of Rainfall Excess is the total time in which the rainfall intensity the greater than the average rate of infiltration (in hours).

How to calculate Total Storm Runoff given W Index?

The Total Storm Runoff given W Index formula is defined as the flow of water occurring on the ground surface when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate into the soil is calculated using Total Storm Runoff = Total Storm Precipitation-Depression and Interception Losses-(W-Index*Duration of Rainfall Excess). To calculate Total Storm Runoff given W Index, you need Total Storm Precipitation (P), Depression and Interception Losses (I_a), W-Index (W) & Duration of Rainfall Excess (t_e). With our tool, you need to enter the respective value for Total Storm Precipitation, Depression and Interception Losses, W-Index & Duration of Rainfall Excess and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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