Pan Evaporation Loss Calculator

✖Lake Evaporation is a sensitive indicator of the hydrological response to climate change. Variability in annual lake evaporation is assumed to be controlled by the surface solar radiation.ⓘ Lake Evaporation [E_lake]			+10% -10%
✖Number of Days in a Month with respect to pan evaporation loss. Pan evaporation is a measurement that combines or integrates the effects of several climate elements.ⓘ Number of Days in a Month [n]			+10% -10%

✖Pan Evaporation Loss during the month. Pan evaporation is a measurement that combines or integrates the effects of several climate elements.ⓘ Pan Evaporation Loss [E_pm]

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Formula

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Pan Evaporation Loss

Formula

`"E"_{"pm"} = "E"_{"lake"}*"n"*10^-3`

Example

`"0.369m"="12.3"*"30"*10^-3`

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Pan Evaporation Loss Solution

STEP 0: Pre-Calculation Summary

Formula Used

Pan Evaporation Loss = Lake Evaporation*Number of Days in a Month*10^-3
E_pm = E_lake*n*10^-3
This formula uses 3 Variables

Variables Used

Pan Evaporation Loss - (Measured in Meter) - Pan Evaporation Loss during the month. Pan evaporation is a measurement that combines or integrates the effects of several climate elements.
Lake Evaporation - Lake Evaporation is a sensitive indicator of the hydrological response to climate change. Variability in annual lake evaporation is assumed to be controlled by the surface solar radiation.
Number of Days in a Month - Number of Days in a Month with respect to pan evaporation loss. Pan evaporation is a measurement that combines or integrates the effects of several climate elements.

STEP 1: Convert Input(s) to Base Unit

Lake Evaporation: 12.3 --> No Conversion Required
Number of Days in a Month: 30 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

E_pm = E_lake*n*10^-3 --> 12.3*30*10^-3

Evaluating ... ...

E_pm = 0.369

STEP 3: Convert Result to Output's Unit

0.369 Meter --> No Conversion Required

FINAL ANSWER

0.369 Meter <-- Pan Evaporation Loss

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Engineering Hydrology » Losses from Precipitation » Reservoir Evaporation and Methods of Reduction » Pan Evaporation Loss

Credits

Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 2000+ more calculators!

Verified by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has verified this Calculator and 1700+ more calculators!

< 5 Reservoir Evaporation and Methods of Reduction Calculators

Average Reservoir Area during Month given Volume of Water Lost in Evaporation

Go Average Reservoir Area = Volume of Water Lost in Evaporation/(Pan Evaporation Loss*Relevant Pan Coefficient)

Relevant Pan Coefficient given Volume of Water Lost in Evaporation in Month

Go Relevant Pan Coefficient = Volume of Water Lost in Evaporation/(Average Reservoir Area*Pan Evaporation Loss)

Pan Evaporation Loss given Volume of Water Lost in Evaporation in Month

Go Pan Evaporation Loss = Volume of Water Lost in Evaporation/(Average Reservoir Area*Relevant Pan Coefficient)

Volume of Water Lost in Evaporation in Month

Go Volume of Water Lost in Evaporation = Average Reservoir Area*Pan Evaporation Loss*Relevant Pan Coefficient

Pan Evaporation Loss

Go Pan Evaporation Loss = Lake Evaporation*Number of Days in a Month*10^-3

Pan Evaporation Loss Formula

Pan Evaporation Loss = Lake Evaporation*Number of Days in a Month*10^-3
E_pm = E_lake*n*10^-3

What is Pan Evaporation & What is Pan coefficient?

Pan Evaporation is a measurement that combines or integrates the effects of several climate elements: temperature, humidity, rainfall, drought dispersion, solar radiation, and wind. Pan coefficient is the ratio of the amount of evaporation from a large body of water to that measured in an evaporation pan. An evaporation pan provides a measurement of the combined effect of temperature, humidity, windspeed and sunshine on the reference crop evapotranspiration.

What is the Pan Evaporation Rate?

The Rate of Evaporation is determined daily by recording the depth of water. The initial quantity of the water is set at exactly two inches; at the end of the day, the water is then refilled. The amount of water it takes to fill the pan back to two inches is the rate of evaporation.

How to Calculate Pan Evaporation Loss?

Pan Evaporation Loss calculator uses Pan Evaporation Loss = Lake Evaporation*Number of Days in a Month*10^-3 to calculate the Pan Evaporation Loss, The Pan Evaporation Loss formula is defined as the depth of water that evaporates from the pan. Sometimes precipitation is greater than evaporation, and measured increments of water must be dipped from the pan. Pan Evaporation Loss is denoted by E_pm symbol.

How to calculate Pan Evaporation Loss using this online calculator? To use this online calculator for Pan Evaporation Loss, enter Lake Evaporation (E_lake) & Number of Days in a Month (n) and hit the calculate button. Here is how the Pan Evaporation Loss calculation can be explained with given input values -> 0.2691 = 12.3*30*10^-3.

FAQ

What is Pan Evaporation Loss?

The Pan Evaporation Loss formula is defined as the depth of water that evaporates from the pan. Sometimes precipitation is greater than evaporation, and measured increments of water must be dipped from the pan and is represented as E_pm = E_lake*n*10^-3 or Pan Evaporation Loss = Lake Evaporation*Number of Days in a Month*10^-3. Lake Evaporation is a sensitive indicator of the hydrological response to climate change. Variability in annual lake evaporation is assumed to be controlled by the surface solar radiation & Number of Days in a Month with respect to pan evaporation loss. Pan evaporation is a measurement that combines or integrates the effects of several climate elements.

How to calculate Pan Evaporation Loss?

The Pan Evaporation Loss formula is defined as the depth of water that evaporates from the pan. Sometimes precipitation is greater than evaporation, and measured increments of water must be dipped from the pan is calculated using Pan Evaporation Loss = Lake Evaporation*Number of Days in a Month*10^-3. To calculate Pan Evaporation Loss, you need Lake Evaporation (E_lake) & Number of Days in a Month (n). With our tool, you need to enter the respective value for Lake Evaporation & Number of Days in a Month and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Pan Evaporation Loss?

In this formula, Pan Evaporation Loss uses Lake Evaporation & Number of Days in a Month. We can use 1 other way(s) to calculate the same, which is/are as follows -

Pan Evaporation Loss = Volume of Water Lost in Evaporation/(Average Reservoir Area*Relevant Pan Coefficient)

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