Waterfall help

[Meyer Jordan]

Here is Florida, even with generally above average humidity, it was typical for my pond to loose anywhere from 1/4 gallon/ sq.ft. surface area to 3/4/ gallons/sq.ft. of surface area per day.

 

[Mmathis]

Here is Florida, even with generally above average humidity, it was typical for my pond to loose anywhere from 1/4 gallon/ sq.ft. surface area to 3/4/ gallons/sq.ft. of surface area per day.

Our humidity is probably a tad lower than yours, Meyer, but I know I lose a good bit of water than can only be the result of evaporation. It's amazing!

 

[Usman]

in fact lower humidity will have more evaporation then higher humidity

 

[addy1]

I add water everyday, once the heat and sun gets going. The plants and the surface area lose a lot of water. I use a irrigation timer to do a auto watering. On a well so no worries about chlorine.

 

[MitchM]

In my signature below, "pond heat loss formula", a person can figure out their actual evaporative loss rate.

 

[Meyer Jordan]

In my signature below, "pond heat loss formula", a person can figure out their actual evaporative loss rate.

Works fine if you own a wet-bulb thermometer and know how to calculate pond water vapor pressure.

 

[Lisak1]

Works fine if you own a wet-bulb thermometer and know how to calculate pond water vapor pressure.

Well doesn't everyone?!?

 

[MitchM]

Works fine if you own a wet-bulb thermometer and know how to calculate pond water vapor pressure.

There are some given values for some of these numbers, I was working on a simplified version before I was called out to plow a field.

Well doesn't everyone?!?

Hey, don't you give me a hard time too!


So far, according to my calculations, if we have the water temperature, pond surface area, air temperature, wind velocity and saturation pressure, we can arrive at a snapshot of the evaporation rate per minute.
We will need some effort from pond owners for these numbers, but I'll start a separate thread if anyone would want to contribute.
It's just physics. I promise it won't hurt.

 

[Meyer Jordan]

So far, according to my calculations, if we have the water temperature, pond surface area, air temperature, wind velocity and saturation pressure, we can arrive at a snapshot of the evaporation rate per minute.

Can you post this formula that you devised?

 

[MitchM]

Can you post this formula that you devised?

https://www.gardenpondforum.com/threads/evaporation-and-heat-loss-of-your-pond.21500/