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Evapotranspiration information


Water cycle of the Earth's surface, showing the individual components of transpiration and evaporation that make up evapotranspiration. Other closely related processes shown are runoff and groundwater recharge.
pet
Global distribution of potential evapotranspiration averaged over the years 1981–2010 from the CHELSA-BIOCLIM+ data set[1]

Evapotranspiration (ET) refers to the combined processes which move water from the Earth's surface (open water and ice surfaces, bare soil and vegetation) into the atmosphere.[2]: 2908  It covers both water evaporation (movement of water to the air directly from soil, canopies, and water bodies) and transpiration (evaporation that occurs through the stomata, or openings, in plant leaves). Evapotranspiration is an important part of the local water cycle and climate, and measurement of it plays a key role in agricultural irrigation and water resource management.[3]

  1. ^ Brun, P., Zimmermann, N.E., Hari, C., Pellissier, L., Karger, D.N. (preprint): Global climate-related predictors at kilometre resolution for the past and future. Earth Syst. Sci. Data Discuss. https://doi.org/10.5194/essd-2022-212 Archived 2023-01-08 at the Wayback Machine
  2. ^ IPCC, 2022: Annex II: Glossary [Möller, V., R. van Diemen, J.B.R. Matthews, C. Méndez, S. Semenov, J.S. Fuglestvedt, A. Reisinger (eds.)]. In: Climate Change 2022: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [H.-O. Pörtner, D.C. Roberts, M. Tignor, E.S. Poloczanska, K. Mintenbeck, A. Alegría, M. Craig, S. Langsdorf, S. Löschke, V. Möller, A. Okem, B. Rama (eds.)]. Cambridge University Press, Cambridge, UK and New York, NY, USA, pp. 2897–2930, doi:10.1017/9781009325844.029.
  3. ^ "Evapotranspiration - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2022-05-02.

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Evapotranspiration

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Evapotranspiration (ET) refers to the combined processes which move water from the Earth's surface (open water and ice surfaces, bare soil and vegetation)...

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Potential evapotranspiration

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Potential evapotranspiration (PET) or potential evaporation (PE) is the amount of water that would be evaporated and transpired by a specific crop, soil...

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Standardised Precipitation Evapotranspiration Index

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The Standardized Precipitation Evapotranspiration Index (SPEI) is a multiscalar drought index based on climatic data. It was developed by Vicente-Serrano...

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Vascular plant

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osmosis creating root pressure. It is possible for there to be no evapotranspiration and therefore no pull of water towards the shoots and leaves. This...

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Desert

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each year. The potential evapotranspiration may be large but (in the absence of available water) the actual evapotranspiration may be close to zero. Semi-deserts...

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Water cycle

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though together they are specifically referred to as evapotranspiration. Total annual evapotranspiration amounts to approximately 505,000 km3 (121,000 cu mi)...

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Horticulture

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automatic watering. Shade houses provide shading to limit water loss by evapotranspiration. Commercial horticulture is required to support a rapidly growing...

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Thornthwaite climate classification

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precipitation evapotranspiration {\displaystyle P/E{\text{ ratio}}={\frac {\text{total monthly precipitation}}{\text{evapotranspiration}}}} Similarly...

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Holdridge life zones

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logarithmic) biotemperature (mean annual, logarithmic) potential evapotranspiration ratio (PET) to mean total annual precipitation. Further indicators...

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Aridity index

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precipitation and potential evapotranspiration for those months when the normal precipitation is less than the normal evapotranspiration; and where n {\displaystyle...

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Eddy covariance

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approach to modeling evapotranspiration using an energy balance and the latent heat flux to find evapotranspiration rates. Evapotranspiration (ET) is a part...

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Atmometer

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by farmers and growers to measure evapotranspiration (ET) rates of crops at any field location. Evapotranspiration is a measure of all of the water that...

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Climate

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classification. The Thornthwaite system, in use since 1948, incorporates evapotranspiration along with temperature and precipitation information and is used in...

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Crop coefficient

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Crop coefficients are properties of plants used in predicting evapotranspiration (ET). The most basic crop coefficient, Kc, is simply the ratio of ET observed...

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Landslide

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on temperature, both average rainfall and rainfall extremes, and evapotranspiration may affect landslide distribution, frequency and intensity (62). However...

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Steppe

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addition to the precipitation level, its combination with potential evapotranspiration defines a steppe climate. Steppe can be classified by climate: Temperate...

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SEBAL

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balance to estimate aspects of the hydrological cycle. SEBAL maps evapotranspiration, biomass growth, water deficit and soil moisture. Its main creator...

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Evaporation

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involves evaporation within plant stomata) are collectively termed evapotranspiration. Evaporation of water occurs when the surface of the liquid is exposed...

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Mediterranean climate

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precipitation usually decreases in both the winter and summer due to higher evapotranspiration. Toward the polar latitudes, total moisture usually increases; for...

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Taiga

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between the Taiga and the Steppe biomes, (in warmer climates), where evapotranspiration exceeds precipitation, restricting vegetation to mostly grasses. In...

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Tundra

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pressure of water in the chilly atmosphere, but as a rule potential evapotranspiration is extremely low, allowing soggy terrain of swamps and bogs even in...

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Albedo

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Scientists generally treat evapotranspiration as a net cooling impact, and the net climate impact of albedo and evapotranspiration changes from deforestation...

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Lysimeter

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over time. Lysimeters can be used to measure the amount of actual evapotranspiration which is released by plants (usually crops or trees). By recording...

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Tropical rainforest

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annual temperature greater than 24 degrees Celsius, with a potential evapotranspiration ratio (PET) value of <0.25. However, most lowland tropical forests...

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Climate of France

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ETPQ (Daily Potential Evapotranspiration) model was built to meet the need for real-time monitoring of potential evapotranspiration over the whole country...

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Natural environment

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Wladimir Köppen. The Thornthwaite system, in use since 1948, uses evapotranspiration as well as temperature and precipitation information to study animal...

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Metric

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METRIC, a model that uses Landsat satellite data to compute and map evapotranspiration (ET) in climatology/meteorology The word metric is often used to mean...

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