Effective Rainfall or Useful Rainfall Calculator

✖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.ⓘ Consumptive Use of Water in Irrigation [C_u]			+10% -10%
✖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.ⓘ Concentration of Salt in Irrigation Water [C]			+10% -10%
✖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.ⓘ Total Quantity of Water Applied to Soil [Q]			+10% -10%
✖Salinity concentration of soil solution is a measure of the minerals and salts that can be dissolved in water.ⓘ Salinity Concentration of Soil Solution [C_s]			+10% -10%

✖Effective rainfall equal to the difference between total rainfall and actual evapotranspiration.ⓘ Effective Rainfall or Useful Rainfall [R_eff]

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Formula

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Effective Rainfall or Useful Rainfall

Formula

`"R"_{"eff"} = "C"_{"u"}+("C"*"Q"/"C"_{"s"})-"Q"`

Example

`"29mm"="34cm"+("200ppm"*"35L"/"1794.872ppm")-"35L"`

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Effective Rainfall or Useful Rainfall Solution

STEP 0: Pre-Calculation Summary

Formula Used

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
R_eff = C_u+(C*Q/C_s)-Q
This formula uses 5 Variables

Variables Used

Effective Rainfall - (Measured in Centimeter) - Effective rainfall equal to the difference between total rainfall and actual evapotranspiration.
Consumptive Use of Water in Irrigation - (Measured in Centimeter) - 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.
Concentration of Salt in Irrigation Water - (Measured in Parts per Million) - 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.
Total Quantity of Water Applied to Soil - (Measured in Liter) - 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.
Salinity Concentration of Soil Solution - (Measured in Parts per Million) - Salinity concentration of soil solution is a measure of the minerals and salts that can be dissolved in water.

STEP 1: Convert Input(s) to Base Unit

Consumptive Use of Water in Irrigation: 34 Centimeter --> 34 Centimeter No Conversion Required
Concentration of Salt in Irrigation Water: 200 Parts per Million --> 200 Parts per Million No Conversion Required
Total Quantity of Water Applied to Soil: 35 Liter --> 35 Liter No Conversion Required
Salinity Concentration of Soil Solution: 1794.872 Parts per Million --> 1794.872 Parts per Million No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_eff = C_u+(C*Q/C_s)-Q --> 34+(200*35/1794.872)-35

Evaluating ... ...

R_eff = 2.89999955428576

STEP 3: Convert Result to Output's Unit

0.0289999955428576 Meter -->28.9999955428576 Millimeter (Check conversion here)

FINAL ANSWER

28.9999955428576 ≈ 29 Millimeter <-- Effective Rainfall

(Calculation completed in 00.004 seconds)

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< 4 Irrigation Water Quality Calculators

Consumptive Use of Water

Go Consumptive Use of Water in Irrigation = Total Quantity of Water Applied to Soil-((Concentration of Salt in Irrigation Water*Total Quantity of Water Applied to Soil)/(Salinity Concentration of Soil Solution))+(Effective Rainfall)

Concentration of Salt in Irrigation Water

Go Concentration of Salt in Irrigation Water = (Salinity Concentration of Soil Solution*(Total Quantity of Water Applied to Soil-(Consumptive Use of Water in Irrigation-Effective Rainfall)))/Total Quantity of Water Applied to Soil

Salinity Concentration of Soil Solution

Go Salinity Concentration of Soil Solution = (Concentration of Salt in Irrigation Water*Total Quantity of Water Applied to Soil)/(Total Quantity of Water Applied to Soil-(Consumptive Use of Water in Irrigation-Effective Rainfall))

Effective Rainfall or Useful Rainfall

Go 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

Effective Rainfall or Useful Rainfall Formula

How do you analyze Rainfall Data?

For statistical analysis rainfall data from a single series should ideally possess property of homogeneity - i.e., properties or characteristics of different portion of the data series do not vary significantly. Rainfall data for multiple series at neighboring stations should ideally possess spatial homogeneity.

What causes Rainfall Variability?

Climate change will cause an intensification of rainfall variability, thus resulting in river flow fluctuations and a higher frequency of droughts or floods.

How to Calculate Effective Rainfall or Useful Rainfall?

Effective Rainfall or Useful Rainfall calculator 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 calculate 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 calculate Effective Rainfall or Useful Rainfall using this online calculator? To use this online calculator 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. Here is how the Effective Rainfall or Useful Rainfall calculation can be explained with given input values -> 3.9E+7 = 0.34+(0.2*0.035/1.794872)-0.035.

FAQ

What is Effective Rainfall or Useful Rainfall?

The Effective Rainfall or Useful Rainfall formula is defined as equal to the difference between total rainfall and actual evapotranspiration and is represented as R_eff = C_u+(C*Q/C_s)-Q or 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. 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, 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, 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 & Salinity concentration of soil solution is a measure of the minerals and salts that can be dissolved in water.

How to calculate Effective Rainfall or Useful Rainfall?

The Effective Rainfall or Useful Rainfall formula is defined as equal to the difference between total rainfall and actual evapotranspiration is calculated using 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 calculate Effective Rainfall or Useful Rainfall, you need 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). With our tool, you need to enter the respective value for Consumptive Use of Water in Irrigation, Concentration of Salt in Irrigation Water, Total Quantity of Water Applied to Soil & Salinity Concentration of Soil Solution 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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