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# Questions tagged [evaporation]

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55 views

### Estimation on how cold will my pond get - intent is to know if certain fish can survive in it

I want to get an estimate on how cold my pond will get. It is a 1 acre pond in Central Florida USA. It has an average depth of 4 feet. There is not much circulation in the pond. It gets direct ...
69 views

### ERA5 mean evaporation rates data - Why is that negative?

Please, let me know if this question is too technical/specific for Earth Science. In case, I will remove it and eventually post it elsewhere. I am processing some data extracted from ERA5 to set up a ...
28 views

### How to convert solar radiation into equivalent evaporation

I have come across two (apparently) different equations for this purpose. One is mentioned in BASINS software code here Rad\_len [inday^{-1}] = \frac{SolRad[langleysday^{-1}]}{((597.3 - 0.57 * ...
39 views

### Why estimate evapotranspiration using machine learning techniques while we can calculate it with Penmann monteith equation?

I find many researchers use Machine Learning Techniques and Algorithms to calculate the EvapoTranspiration, while there’s also the Penmann Monteith equation that gives us the result. Does this say we ...
49 views

### is it better to take minimum measure of all measures or the mean of minimum measures as a minimum measure

We have taken the measurments of temperature, humidity, net radiation and pressure in our lab so we can calculate the potential reference EvapoTranspiration. So to find out the potential reference ET ...
58 views

### Deep sea pumps that work on wind power, can they control the weather?

If they used wind power to bring up cold water from far under the ocean in the day time and spray it on prevailing winds going into land, could they make it rain more in arid regions? What weather ...
18 views

### Statistical dependence of mean annual soil evaporation and mean annual precipitation globally

I am studying a simple dynamical system that represents a plant and water system, similar to Klausmeier. In Klausmeier model the mean annual precipitation and the soil evaporation are introduced as ...
24 views

### Data of terrestrial evapotranspiration over large areas?

I have been looking for information regarding the total amount of water that evaporates from terrestrial systems and found some global estimates like this one http://www.waterandclimatechange.eu/...
85 views

### Is my understanding of saturation and cloud formation correct?

I'm trying to see if I understand the concepts of saturation, vapor pressure and cloud formation correctly. When, at a given temperature and height in the atmosphere, the rate of evaporation and ...
216 views

### When sea water evaporates does it carry small amounts of salt into the atmosphere?

I’m interested to know, because we live near the beach and all the metal on the outside of our house is corroded. My dad says it was from the wind picking up spray from the surf, but I’m not so sure.
75 views

### Sulfate salts of magnesium and sodium

What concentrations of magnesium, sodium and sulfate are needed to precipitate solid MgSO4 and Na2SO4 (let's say evaporation is occurring in a system) I'm assuming probably really high because they ...
228 views

### Sun's Effect on Water Vapor in the Air

If the air temperature remains the same, will adding more sun reduce the amount of water vapor in the air - that is, does the sun have any impact on water vapor in the air when temperature is removed ...
65 views

### Can the formation of gypsum evaporites (sand roses) be simulated in the lab?

Has the process of formation of sand roses been simulated in laboratory conditions, or does it take too long?
764 views

### Where does water vapor go/what does the sun do?

For instance, coastal areas are often foggy in the morning. Then the sun “burns it off”. Where does the moisture go? I’m curious of the star’s (i.e. Sun) influence on evaporation effects.
1k views

### Does negative reference evapotranspiration make sense using FAO Penman-Monteith equation?

I computed the daily reference evapotranspiration $ET_0$ using the Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56. The outputs seems ...
1k views

### Why do anticyclones bring clear skies in summertime?

It's obvious that in summer anticyclones bring hot weather. But why clear skies? Heat evaporates the moisture and should lead to the cloud formation, shouldn't it?
134 views

### Recharge calculation for an aquifer

I want to calculate recharge for an aquifer for which I have calculated daily ET by Haude's method and I also have daily precipitation data. How can I calculate recharge per minutes.
697 views

### How to find/calculate the yearly evaporation of a given area?

What I am asking, is exactly the opposite of the yearly rain. It is well measured and it has century long databases. Consider a given, generally dry area. What I am trying to know: if this area ...
317 views

### Cooling effect by evaporation [closed]

Why exactly does water cool down by evaporation? What happens in this process? How much does it cool down? What's the formula to describe this process?
616 views

### In general, does the presence of vegetation increase/decrease gross water loss (evapotranspiration) compared to barren land (evaporation only)?

I am doing some literature review on desertification. However, I could not find any information related to my question. Based on my knowledge, barren land faced greater heating and wind than vegetated ...