How much water can the sun evaporate a day?

How much water can the sun evaporate a day?

Sun and Wind Pools that are in direct sun and uncovered for 24 hours a day will lose, on average, a quarter-inch of water during dry, hot weather. This is mainly because heat rises as the air cools.

How much water does the sun evaporate each year?

434,000 cubic km of water evaporates from the oceans each year, while 71,000 km3 (about 1/6th as much) rises into the air over land via evaporation and transpiration.

How much water evaporates from the world’s oceans each day?

Each day, 280 mi3 (1,170 km3)of water evaporate or transpire into the atmosphere. If all of the world’s water was poured on the contiguous United States, it would cover the land to a depth of about 107 miles (145 kilometers).

How much water evaporates in a year?

Pools can lose a quarter of an inch to half an inch of water every day from water evaporation. Accumulated, this is already two to four inches per week. This means an average-sized pool can lose 25,000 to 50,000 gallons of water a year – that’s a lot of water!

How much water does pool lose per day?

On average, swimming pools lose about a quarter of an inch of water each day, yet variations in wind intensity, humidity and sunlight can drastically change water loss rates.

How much water evaporates from a lake each day?

If all three ingredients are present, as often occurs in the fall and winter, evaporation rates from the Great Lakes can get as high as 0.4-‐0.6 inches per day.

How much water evaporates from the ocean?

Taken as a whole, the hydrological cycle is characterized by the evaporation of about half a million cubic kilometers of water per year, the bulk of which (86%) is from the ocean, with only 14% originating in the continents [1].

Does water evaporate off the earth?

Evaporation happens on a global scale. Alongside condensation and precipitation, evaporation is one of the three main steps in the Earth’s water cycle. Evaporation accounts for 90 percent of the moisture in the Earth’s atmosphere; the other 10 percent is due to plant transpiration.

Why does deep ground water have the longest residence time?

Underground water below a depth of a few hundred metres moves more slowly through the cycle, and residence times are much longer, up to ten thousand years (Table 2.1 ). Much of this water is saline either because it has had time to dissolve salts from the rocks, or because it originates from seawater.

How much water does a swimming pool lose per day?

How much water evaporates from a pool in summer?

Sources online indicate that an average outdoor swimming pool during the summer can evaporate between 0.25-0.50 inches (0.6 – 1.2 cm) per day. That means a swimming pool could lose up to 3.5 inches of water per week!

How much water does it take to evaporate in a year?

While there were seasonal and daily variations, depending upon the temperature, relative humidity, intensity of the sunlight, and the wind velocity, the overall evaporation rate for this location averages 72 inches per year. That works out to almost 49 gallons per squ

How much water does a pond lose to evaporation per hour?

So an irregular shaped 7 X 11 Pond would have 7 X 11 X .85 = 65 Sq. Ft. X .62 = 40 Gallons per Inch of water. So if we take the numbers in the examples above and assume we have a sheltered pond and are pumping 1000 gallons per hour we should be losing around 5 Gallons per day to evaporation.

How do you calculate the evaporation rate of water from a pool?

The evaporation rate of water from a swimming pool is fairly easy to calculate; given you have access to a psychometric chart or a water vapor tables. W=(A (69.4+30.8 (V)) / Y )(Pw-Pa) W = lb / hr of evaporation. A = surface area of the swimming pool. V = mean wind velocity (mph). Y= Latent heat (approx. 1000). Pw – Sat.

What causes water to evaporate from the air?

Low Relative Humidity – Low amounts of water in the air can increase evaporation. Very Sunny Days – Successive very sunny days can also increase evaporation No Rain – Without the occasional rain to help keep levels up, it will make your water loss seem greater.