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Reference evapotranspiration variability and trends in Spain, 1961–2011
Título : Reference evapotranspiration variability and trends in Spain, 1961–2011
Autor : Vicente Serrano, Sergio MartínAzorín Molina, CésarSánchez Lorenzo, ArturoRevuelto, JesúsLópez Moreno, Juan IgnacioGonzález Hidalgo, José CarlosMorán Tejeda, EnriqueEspejo Gil, FranciscoAutor AEMET
Palabras clave : Reference evapotranspiration; Penman-Monteith; Climate change; Mediterranean region; Global warming; Drought
Fecha de publicación : 2014
Editor: Elsevier
Citación : Global and Planetary Change. 2014, 121, p. 26-40
Versión del editor: https://doi.org/10.1016/j.gloplacha.2014.06.005
Resumen : In this study we analyzed the spatial distribution, temporal variability and trends in reference evapotranspiration (ET0) in Spain from 1961 to 2011. Twelve methods were analyzed to quantify ET0 from quality controlled and homogeneous series of various meteorological variables measured at 46 meteorological stations. Some of the models used are temperature based (e.g., Thornthwaite, Hargreaves, Linacre), whereas others are more complex and require more meteorological variables for calculation (e.g., Priestley–Taylor, Papadakis, FAO–Blaney–Criddle). The Penman–Monteith equation was used as a reference to quantify ET0, and for comparison among the other methods applied in the study. No major differences in the spatial distribution of the average ET0 were evident among the various methods. At annual and seasonal scales some of the ET0 methods requiring only temperature data for calculation provided better results than more complex methods requiring more variables. Among them the Hargreaves (HG) equation provided the best results, at both the annual and seasonal scales.
Patrocinador: This work has been supported by 510 the research projects CGL2011-27574-CO2-02, CGL2011-27536 and CGL2010-18546 financed by 511 the Spanish Commission of Science and Technology and FEDER.
URI : http://hdl.handle.net/20.500.11765/14869
ISSN : 0921-8181
1872-6364
Colecciones: Artículos científicos 2010-2014


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