Trends in climatic variables and future reference evapotranspiration in Duero Valley (Spain)

Moratiel Yugueros, Ruben and Snyder, Richard L. and Tarquis Alfonso, Ana Maria and Duran Altisent, Jose Maria (2011). Trends in climatic variables and future reference evapotranspiration in Duero Valley (Spain). "Natural Hazards And Earth System Sciences", v. 11 ; pp. 1795-1805. ISSN 1561-8633. https://doi.org/10.5194/nhess-11-1795-2011.

Description

Title: Trends in climatic variables and future reference evapotranspiration in Duero Valley (Spain)
Author/s:
  • Moratiel Yugueros, Ruben
  • Snyder, Richard L.
  • Tarquis Alfonso, Ana Maria
  • Duran Altisent, Jose Maria
Item Type: Article
Título de Revista/Publicación: Natural Hazards And Earth System Sciences
Date: June 2011
Volume: 11
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Matemática Aplicada a la Ingeniería Agronómica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The impact of climate change and its relation with evapotranspiration was evaluated in the Duero River Basin (Spain). The study shows possible future situations 50 yr from now from the reference evapotranspiration (ETo). The maximum temperature (Tmax), minimum temperature (Tmin), dew point (Td), wind speed (U) and net radiation (Rn) trends during the 1980–2009 period were obtained and extrapolated with the FAO-56 Penman-Montheith equation to estimate ETo. Changes in stomatal resistance in response to increases in CO2 were also considered. Four scenarios were done, taking the concentration of CO2 and the period analyzed (annual or monthly) into consideration. The scenarios studied showed the changes in ETo as a consequence of the annual and monthly trends in the variables Tmax, Tmin, Td, U and Rn with current and future CO2 concentrations (372 ppm and 550 ppm). The future ETo showed increases between 118 mm (11 %) and 55 mm (5 %) with respect to the current situation of the river basin at 1042 mm. The months most affected by climate change are May, June, July, August and September, which also coincide with the maximum water needs of the basin’s crops

More information

Item ID: 12361
DC Identifier: http://oa.upm.es/12361/
OAI Identifier: oai:oa.upm.es:12361
DOI: 10.5194/nhess-11-1795-2011
Official URL: http://www.nat-hazards-earth-syst-sci.net/11/1795/2011/nhess-11-1795-2011.pdf
Deposited by: Memoria Investigacion
Deposited on: 10 Aug 2012 11:25
Last Modified: 21 Apr 2016 11:36
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