evapotranspiration


Also found in: Acronyms, Encyclopedia, Wikipedia.
Related to evapotranspiration: Potential evapotranspiration

e·vap·o·tran·spi·ra·tion

 (ĭ-văp′ō-trăn′spə-rā′shən)
n.
1. The combined processes of evaporation, sublimation, and transpiration of the water from the earth's surface into the atmosphere.
2. The total amount of water transferred from the earth to the atmosphere.

[evapo(ration) and transpiration.]

evapotranspiration

(ɪˌvæpəʊˌtrænspəˈreɪʃən)
n
(Environmental Science) the return of water vapour to the atmosphere by evaporation from land and water surfaces and by the transpiration of vegetation

e•vap•o•tran•spi•ra•tion

(ɪˌvæp oʊˌtræn spəˈreɪ ʃən)

n.
the transfer of moisture from the earth to the atmosphere by evaporation of water and transpiration from plants.
[1945–50; evapo(ration) + transpiration]
Mentioned in ?
References in periodicals archive ?
Considering table 3, one can say that Jensen-Haise is the most inappropriate method to measure evapotranspiration in the area studied.
Forests are among the biggest biomasses around the world and return a large portion of precipitation of water from the atmosphere through evapotranspiration. Thus, evapotranspiration of forests observed in different parts of the world [6] greatly affect the regional and global climate to the flow of rivers, which in turn impacts upon the resources of bodies of water in the transport of sediment and biodiversity from the very forests [7].
The stochastic model had 13 parameters, and six of these were related to the vegetation: [Z.sub.r] (active root depth), [DELTA] (canopy interception), [s.sub.e_w] (permanent wilting point), [s.sub.e.sup.*] (relative soil water content below which plants begin closing their stomata), [E.sub.max] (mean daily evapotranspiration rate at [s.sub.e_fc]) and [E.sub.w] (mean daily evaporation rate at [s.sub.e_w]).
LM will help EM conduct investigations on the effectiveness of evapotranspiration covers at the Crescent Junction Site, provide recommendations and expertise on cover design, and assist with regulatory approvals.
Therefore, these models differ by the mathematical expression used for the reduction factor, the soil routine employed for maintaining the water balance, or the partitioning of evapotranspiration into transpiration and evaporation.
The service, he said, had already been informing the farmers of 41 districts (irrigated areas) about their net weekly irrigation requirements, considering Evapotranspiration (ET) and precipitation.
This study aimed to model the behavior of the time series of reference evapotranspiration in the municipality of Ariquemes (RO), using a GMDH-type artificial neural network, and compare it to the SARIMA (Seasonal Autoregressive Integrated Moving Average) model.
This approach, exclusively based on remotely sensed data, allows for the quantitative estimates of evapotranspiration and can be extended towards catchments with no or limited in situ networks.
Attempts to describe these mechanisms and physical processes with greater realism led to the development of the land surface modeling systems proposed for application, for example, using images of surface radiant temperature (Ts) and fractional vegetation cover (Fr), to provide moisture content in the soil surface (Mo), and fractional evapotranspiration (EF, the ratio of evapotranspiration ET to net radiation Rn), through a methodology known as the "triangle method".
Each station in the network provides 50,000 measurements a second to power a fully built artificial intelligence core that provides precise hail, rainfall, temperature, humidity, evapotranspiration and growing degree units.
Moreover, temperature controls the evapotranspiration processes taking place at the soil surface; thus, an increase or a decrease in temperature leads to different precipitation quotas that return to the atmosphere by means of plants transpiration.
A study of meteorological drought over the one-year period ending August 22, based on the Standardized Precipitation Evapotranspiration Index (SPEI), shows that 88 percent of the country's area grappled with different levels of drought.