✖Rainfall Depth refers to the vertical height of rainwater accumulated over a surface during a specific period, typically measured in millimeters (mm) or inches.ⓘ Rainfall Depth [P_cm]			+10% -10%
✖W-Index refers to the uniform rate of infiltration during a rainstorm after initial infiltration capacity has decreased, typically measured in cm/h.ⓘ W-Index [W]			+10% -10%
✖Rainfall duration refers to the length of time over which a rainfall event occurs, typically measured in hours or minutes, affecting runoff and infiltration.ⓘ Rainfall Duration [t_r]			+10% -10%

✖Runoff depth refers to the vertical height of water from precipitation or irrigation that flows over land surfaces into water bodies, typically measured in centimeters (cm).ⓘ Runoff given W-Index [R]

⎘ Copy

👎

Formula

✖

Runoff given W-Index

Formula

`"R"_{""} = "P"_{"cm"}-("W"*"t"_{"r"})`

Example

`"11.994cm"="12cm"-("1.714cm/h"*"3.5h")`

Calculator

LaTeX

Reset

👍

Download Environmental Engineering Formula PDF PDF Image

Runoff given W-Index Solution

STEP 0: Pre-Calculation Summary

Formula Used

Runoff Depth = Rainfall Depth-(W-Index*Rainfall Duration)
R = P_cm-(W*t_r)
This formula uses 4 Variables

Variables Used

Runoff Depth - (Measured in Millimeter) - Runoff depth refers to the vertical height of water from precipitation or irrigation that flows over land surfaces into water bodies, typically measured in centimeters (cm).
Rainfall Depth - (Measured in Millimeter) - Rainfall Depth refers to the vertical height of rainwater accumulated over a surface during a specific period, typically measured in millimeters (mm) or inches.
W-Index - (Measured in Meter per Second) - W-Index refers to the uniform rate of infiltration during a rainstorm after initial infiltration capacity has decreased, typically measured in cm/h.
Rainfall Duration - (Measured in Second) - Rainfall duration refers to the length of time over which a rainfall event occurs, typically measured in hours or minutes, affecting runoff and infiltration.

STEP 1: Convert Input(s) to Base Unit

Rainfall Depth: 12 Centimeter --> 120 Millimeter (Check conversion here)
W-Index: 1.714 Centimeter per Hour --> 4.76111111111111E-06 Meter per Second (Check conversion here)
Rainfall Duration: 3.5 Hour --> 12600 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R = P_cm-(W*t_r) --> 120-(4.76111111111111E-06*12600)

Evaluating ... ...

R = 119.94001

STEP 3: Convert Result to Output's Unit

0.11994001 Meter -->11.994001 Centimeter (Check conversion here)

FINAL ANSWER

11.994001 ≈ 11.994 Centimeter <-- Runoff Depth

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Environmental Engineering » Surface Water Hydrology » Infiltration Index » Runoff given W-Index

Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2200+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< 6 Infiltration Index Calculators

Runoff Coefficient given W-Index

Go Runoff Coefficient = Rainfall Depth-(W-Index*Rainfall Duration)

W-Index given Duration of Rainfall

Go W-Index = (Rainfall Depth-Runoff Depth)/Rainfall Duration

Duration of Rainfall given W-Index

Go Rainfall Duration = (Rainfall Depth-Runoff Depth)/W-Index

Precipitation given W-Index

Go Rainfall Depth = (W-Index*Rainfall Duration)+Runoff Depth

Runoff given W-Index

Go Runoff Depth = Rainfall Depth-(W-Index*Rainfall Duration)

W-Index given Runoff Coefficient

Go W-Index = Intensity of Rainfall*(1-Runoff Coefficient)

Runoff given W-Index Formula

Runoff Depth = Rainfall Depth-(W-Index*Rainfall Duration)
R = P_cm-(W*t_r)

What is Runoff?

Runoff occurs when there is more water than land can absorb. The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. Runoff can come from both natural processes and human activity. The most familiar type of natural runoff is snowmelt.

How to Calculate Runoff given W-Index?

Runoff given W-Index calculator uses Runoff Depth = Rainfall Depth-(W-Index*Rainfall Duration) to calculate the Runoff Depth, The Runoff given W-Index is defined as excess liquid flows across surface of land and into nearby creeks, streams, or ponds typically measured in cm. Runoff Depth is denoted by R symbol.

How to calculate Runoff given W-Index using this online calculator? To use this online calculator for Runoff given W-Index, enter Rainfall Depth (P_cm), W-Index (W) & Rainfall Duration (t_r) and hit the calculate button. Here is how the Runoff given W-Index calculation can be explained with given input values -> 999.4001 = rainfall_in_cm-(4.76111111111111E-06*12600).

FAQ

What is Runoff given W-Index?

The Runoff given W-Index is defined as excess liquid flows across surface of land and into nearby creeks, streams, or ponds typically measured in cm and is represented as R = P_cm-(W*t_r) or Runoff Depth = Rainfall Depth-(W-Index*Rainfall Duration). Rainfall Depth refers to the vertical height of rainwater accumulated over a surface during a specific period, typically measured in millimeters (mm) or inches, W-Index refers to the uniform rate of infiltration during a rainstorm after initial infiltration capacity has decreased, typically measured in cm/h & Rainfall duration refers to the length of time over which a rainfall event occurs, typically measured in hours or minutes, affecting runoff and infiltration.

How to calculate Runoff given W-Index?

The Runoff given W-Index is defined as excess liquid flows across surface of land and into nearby creeks, streams, or ponds typically measured in cm is calculated using Runoff Depth = Rainfall Depth-(W-Index*Rainfall Duration). To calculate Runoff given W-Index, you need Rainfall Depth (P_cm), W-Index (W) & Rainfall Duration (t_r). With our tool, you need to enter the respective value for Rainfall Depth, W-Index & Rainfall Duration and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search