Articles | Volume 17, issue 3
https://doi.org/10.5194/esd-17-843-2026
https://doi.org/10.5194/esd-17-843-2026
Research article
 | 
26 Jun 2026
Research article |  | 26 Jun 2026

Regional impacts of irrigation on the atmospheric and terrestrial water cycle of the Iberian Peninsula in a climate model

Pierre Tiengou, Agnès Ducharne, and Frédérique Cheruy

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Short summary
This study analyses simulations of regional climate over the Iberian Peninsula, with and without an explicit simulation of irrigation. It shows that the model matches observations much better with irrigation, particularly river discharge and evapotranspiration. The presence of simulated irrigation also makes the air cooler over irrigated areas and more humid over the whole Peninsula, leading to increases in rainfall, mostly located in the mountains that surround the highly irrigated Ebro Valley.
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