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Temperature driven vapor fluxes in soils cause a net recharge

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Gran Esforzado, Meritxell
Saaltink, Maarten WillemMés informacióMés informacióMés informació
Dandar, Enkhbayar
Carrera Ramírez, JesúsMés informació
Document typeConference lecture
Defense date2017
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
Temperature gradients can drive vapor diffusion by controlling vapor pressure in the soil. We studied vapor diffusion for soils in two different climates: A semiarid climate at El Cabril (Córdoba, Spain) and a subarctic climate in the Upper Tuul River basin (Mongolia). For El Cabril vapor diffusive fluxes were studied by means of the measured temperatures and an analytical model. For the second site (Upper Tuul) a physically based soil water and energy balance model was developed accounting for relevant processes such as melting-freezing of water and vapor diffusion in the soil. Results of both sites show that vapor diffuses downwards during summer and upwards during winter, while yearly averaged fluxes diffuse downwards. The overall amount is small for El Cabril, but significant for the Upper Tuul. The latter large values can be explained by the large temperature oscillations of the Mongolian climate and the freezing/thawing of subsoil layer.
CitationGran, M., Saaltink, M., Dandar, E., Carrera, J. Temperature driven vapor fluxes in soils cause a net recharge. A: Jornadas de Investigación de la Zona no Saturada del Suelo. "Estudios en la zona no saturada del suelo vol. XIII. ZNS’17". 11/2017, p. 439-447. 
URIhttp://hdl.handle.net/2117/114866
ISBN978-84-947468-9-5
Publisher versionhttp://zonanosaturada.com/wp-content/uploads/2017/11/estudios_zona_mno_saturada_suelo_vol_XIII.pdf
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  • Departament d'Enginyeria Civil i Ambiental - Ponències/Comunicacions de congressos [1.135]
  • GHS - Grup d'Hidrologia Subterrània - Ponències/Comunicacions de congressos [85]
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