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  2. Pan evaporation - Wikipedia

    en.wikipedia.org/wiki/Pan_evaporation

    An evaporation pan is used to hold water during observations for the determination of the quantity of evaporation at a given location. Such pans are of varying sizes and shapes, the most commonly used being circular or square. [3] The best known of the pans are the "Class A" evaporation pan and the "Sunken Colorado Pan". [4]

  3. Evaporation - Wikipedia

    en.wikipedia.org/wiki/Evaporation

    Evaporation is an essential part of the water cycle. The sun (solar energy) drives evaporation of water from oceans, lakes, moisture in the soil, and other sources of water. In hydrology, evaporation and transpiration (which involves evaporation within plant stomata) are collectively termed evapotranspiration. Evaporation of water occurs when ...

  4. Penman equation - Wikipedia

    en.wikipedia.org/wiki/Penman_equation

    The Penman equation describes evaporation (E) from an open water surface, and was developed by Howard Penman in 1948. Penman's equation requires daily mean temperature, wind speed, air pressure, and solar radiation to predict E. Simpler Hydrometeorological equations continue to be used where obtaining such data is impractical, to give comparable results within specific contexts, e.g. humid vs ...

  5. Potential evapotranspiration - Wikipedia

    en.wikipedia.org/wiki/Potential_evapotranspiration

    Monthly estimated potential evapotranspiration and measured pan evaporation for two locations in Hawaii, Hilo and Pahala. Potential evapotranspiration is usually measured indirectly, from other climatic factors, but also depends on the surface type, such as free water (for lakes and oceans), the soil type for bare soil, and also the density and diversity of vegetation.

  6. Penman–Monteith equation - Wikipedia

    en.wikipedia.org/wiki/Penman–Monteith_equation

    However, observations revealed that actual evaporation was 1.26 times greater than reference evaporation. Therefore, the equation for actual evaporation was found by taking reference evapotranspiration and multiplying it by α {\displaystyle \alpha } . [ 8 ]

  7. Salt pan (geology) - Wikipedia

    en.wikipedia.org/wiki/Salt_pan_(geology)

    Salt pan at Lake Karum in Ethiopia. Natural salt pans or salt flats are flat expanses of ground covered with salt and other minerals, usually shining white under the sun. They are found in deserts and are natural formations (unlike salt evaporation ponds, which are artificial). A salt pan forms by evaporation of a water pool, such as a lake or ...

  8. Dollar drops, European stocks jump on Trump tariff delay

    www.aol.com/news/dollar-drops-european-stocks...

    The pan-European STOXX 600 rose 0.3%, with the region's main indices all up roughly 0.5%. MSCI's All-World index was last up 0.4%. The dollar tumbled by as much as 1.3% at one point, falling ...

  9. Leidenfrost effect - Wikipedia

    en.wikipedia.org/wiki/Leidenfrost_effect

    Leidenfrost droplet Demonstration of the Leidenfrost effect Leidenfrost effect of a single drop of water. The Leidenfrost effect is a physical phenomenon in which a liquid, close to a solid surface of another body that is significantly hotter than the liquid's boiling point, produces an insulating vapor layer that keeps the liquid from boiling rapidly.

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