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Constraint > Evapotranspiration constraint > Reference evapostranspiration

Terme préférentiel

Reference evapostranspiration  

Type

  • Constraint

Définition

  • Reference crop evapotranspiration or reference evapotranspiration, denoted as ETo or ETref, is the estimation of the evapotranspiration from the "reference surface." The reference surface is a hypothetical grass reference crop with an assumed crop height of 0.12 m, a fixed surface resistance of 70 s/m and an albedo of 0.23. The reference surface closely resembles an extensive surface of green, well-watered grass of uniform height, actively growing and completely shading the ground. The fixed surface resistance of 70 s/m implies a moderately dry soil surface resulting from about a weekly irrigation frequency.

    Source: https://www.weap21.org/WebHelp/Mabia_Alg_ETRef.htm

Concept générique

constrains

URI

https://w3id.org/ozcar-theia/c_48a25841

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RDF/XML TURTLE JSON-LD Date de création 07/02/2022, dernière modification le 22/01/2024