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Effective Rainfall or Useful Rainfall Formula

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Effective rainfall equal to the difference between total rainfall and actual evapotranspiration. Check FAQs

R eff = C u + (C \cdot \frac{Q}{C s}) - Q

R_eff - Effective Rainfall?C_u - Consumptive Use of Water in Irrigation?C - Concentration of Salt in Irrigation Water?Q - Total Quantity of Water Applied to Soil?C_s - Salinity Concentration of Soil Solution?

Effective Rainfall or Useful Rainfall Example

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Here is how the Effective Rainfall or Useful Rainfall equation looks like with Values.

Here is how the Effective Rainfall or Useful Rainfall equation looks like with Units.

Here is how the Effective Rainfall or Useful Rainfall equation looks like.

29 = 34 + (200 \cdot \frac{35}{1794.872}) - 35

29mm = 34cm + (200ppm \cdot \frac{35L}{1794.872ppm}) - 35L

29 = 34 + (200 \cdot \frac{35}{1794.872}) - 35

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Effective Rainfall or Useful Rainfall Solution

Follow our step by step solution on how to calculate Effective Rainfall or Useful Rainfall?

FIRST Step Consider the formula

R eff = C u + (C \cdot \frac{Q}{C s}) - Q

Next Step Substitute values of Variables

∴

R eff = 34cm + (200ppm \cdot \frac{35L}{1794.872ppm}) - 35L

Next Step Prepare to Evaluate

∴

R eff = 34 + (200 \cdot \frac{35}{1794.872}) - 35

Next Step Evaluate

∴

R eff = 0.0289999955428576m

Next Step Convert to Output's Unit

∴

R eff = 28.9999955428576mm

LAST Step Rounding Answer

∴

R eff = 29mm

Effective Rainfall or Useful Rainfall Formula Elements

Variables

Effective Rainfall

Effective rainfall equal to the difference between total rainfall and actual evapotranspiration.

Symbol: R_eff

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Effective Rainfall

Consumptive Use of Water in Irrigation

Consumptive use of water in irrigation with- drawn that is evaporated, transpired, incorporated into products or crops, consumed by humans or livestock, removed from the immediate water environment.

Symbol: C_u

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Consumptive Use of Water in Irrigation

Concentration of Salt in Irrigation Water

Concentration of salt in irrigation water has a wide range of total salinity. Most surface irrigation water, whose source is snow-fed rivers, has a total salinity of less than about 0.5 to 0.6 ds/m.

Symbol: C

Measurement: SalinityUnit: ppm

Note: Value should be greater than 0.

Formulas to find Concentration of Salt in Irrigation Water

Total Quantity of Water Applied to Soil

Total quantity of water applied to soil is The net quantity of water to be applied depends upon magnitude of moisture deficit in the soil, leaching requirement and expectancy of rainfall.

Symbol: Q

Measurement: VolumeUnit: L

Note: Value should be greater than 0.

Formulas to find Total Quantity of Water Applied to Soil

Salinity Concentration of Soil Solution

Salinity concentration of soil solution is a measure of the minerals and salts that can be dissolved in water.

Symbol: C_s

Measurement: SalinityUnit: ppm

Note: Value should be greater than 0.

Formulas to find Salinity Concentration of Soil Solution

Other formulas in Irrigation Water Quality category

Go Salinity Concentration of Soil Solution

C s = \frac{C \cdot Q}{Q - (C u - R eff)}

Go Concentration of Salt in Irrigation Water

C = \frac{C s \cdot (Q - (C u - R eff))}{Q}

Go Consumptive Use of Water

C u = Q - (\frac{C \cdot Q}{C s}) + (R eff)

How to Evaluate Effective Rainfall or Useful Rainfall?

Effective Rainfall or Useful Rainfall evaluator uses Effective Rainfall = Consumptive Use of Water in Irrigation+(Concentration of Salt in Irrigation Water*Total Quantity of Water Applied to Soil/Salinity Concentration of Soil Solution)-Total Quantity of Water Applied to Soil to evaluate the Effective Rainfall, The Effective Rainfall or Useful Rainfall formula is defined as equal to the difference between total rainfall and actual evapotranspiration. Effective Rainfall is denoted by R_eff symbol.

How to evaluate Effective Rainfall or Useful Rainfall using this online evaluator? To use this online evaluator for Effective Rainfall or Useful Rainfall, enter Consumptive Use of Water in Irrigation (C_u), Concentration of Salt in Irrigation Water (C), Total Quantity of Water Applied to Soil (Q) & Salinity Concentration of Soil Solution (C_s) and hit the calculate button.

FAQs on Effective Rainfall or Useful Rainfall

What is the formula to find Effective Rainfall or Useful Rainfall?

The formula of Effective Rainfall or Useful Rainfall is expressed as Effective Rainfall = Consumptive Use of Water in Irrigation+(Concentration of Salt in Irrigation Water*Total Quantity of Water Applied to Soil/Salinity Concentration of Soil Solution)-Total Quantity of Water Applied to Soil. Here is an example- 3.9E+7 = 0.34+(0.2*0.035/1.794872)-0.035.

How to calculate Effective Rainfall or Useful Rainfall?

With Consumptive Use of Water in Irrigation (C_u), Concentration of Salt in Irrigation Water (C), Total Quantity of Water Applied to Soil (Q) & Salinity Concentration of Soil Solution (C_s) we can find Effective Rainfall or Useful Rainfall using the formula - Effective Rainfall = Consumptive Use of Water in Irrigation+(Concentration of Salt in Irrigation Water*Total Quantity of Water Applied to Soil/Salinity Concentration of Soil Solution)-Total Quantity of Water Applied to Soil.

Can the Effective Rainfall or Useful Rainfall be negative?

No, the Effective Rainfall or Useful Rainfall, measured in Length cannot be negative.

Which unit is used to measure Effective Rainfall or Useful Rainfall?

Effective Rainfall or Useful Rainfall is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Effective Rainfall or Useful Rainfall can be measured.

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Effective Rainfall or Useful Rainfall Formula

Effective Rainfall or Useful Rainfall Example

Effective Rainfall or Useful Rainfall Solution

Effective Rainfall or Useful Rainfall Formula Elements

Other formulas in Irrigation Water Quality category

How to Evaluate Effective Rainfall or Useful Rainfall?

FAQs on Effective Rainfall or Useful Rainfall

Variable Name