Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47319
DC FieldValueLanguage
dc.contributor.authorSánchez, M. L.en_US
dc.contributor.authorRodríguez, R.en_US
dc.contributor.authorLópez, A.en_US
dc.date.accessioned2018-11-23T12:35:29Z-
dc.date.available2018-11-23T12:35:29Z-
dc.date.issued1997en_US
dc.identifier.issn1096-2247en_US
dc.identifier.urihttp://hdl.handle.net/10553/47319-
dc.description.abstractOzone dry deposition fluxes and velocities were measured in 1994 in a semi–arid steppe of central Spain and in a forest in southern France during the period of photochemical activity using the gradient method. Downward fluxes were systematically obtained in both sites, with lower values at nighttime and maximum values during the central period of the day, which showed the important role of stomata in ozone uptake. The range of deposition velocities was –0.005 to 1.160 in the forested site and 0.001 to 1.430 cm s–1 in the semi–arid steppe. The nocturnal deposition velocities observed in the semi–arid steppe were considerably higher than in the forest, with values up to 0.35 cm s–1. A single layer canopy model was applied and validated at both sites. The model fitted the daily patterns well but underestimated the observed values by 34% in the forest and by 10% in the semi–arid steppe. To improve the accuracy of the model, both soil and internal stomatal resistances, Rsoil and Ri, were estimated using a least square technique. The interdependence of both parameters and the relative humidity, rH, was evaluated through a statistical analysis of the residual between the observed deposition velocity and the aerodynamic, sub–layer, and stomatal resistances. The comparison between the parameter estimates under wet and dry conditions in both sites showed (1) the influence of rH on stomatal parameter and soil resistance, (2) the large contribution of stomatal conductance to ozone uptake during the daytime, and (3) the importance of soil as an additional pathway for ozone exchange, especially in the steppe. Taking into account the parameter estimates, the underestimate of the modeled results was 3% in the forest and 5% in the semi–arid steppe.en_US
dc.languageengen_US
dc.publisher1096-2247
dc.relationAMB94 (CICYT)en_US
dc.relation.ispartofJournal of the Air and Waste Management Associationen_US
dc.sourceJournal of the Air and Waste Management Association [ISSN 1096-2247], v. 47, p. 792-799en_US
dc.subjectInvestigaciónen_US
dc.titleOzone Dry Deposition in a Semi-Asanchezrid Steppe and in a Coniferous Forest in Southern Europeen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1080/10473289.1997.10463939en_US
dc.identifier.scopus0343488505-
dc.contributor.authorscopusid7401473962-
dc.contributor.authorscopusid56314921800-
dc.contributor.authorscopusid56514512000-
dc.description.lastpage799en_US
dc.description.firstpage792en_US
dc.relation.volume47en_US
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.utils.revisionen_US
dc.identifier.ulpgcen_US
dc.description.sellofecytSello FECYT
dc.description.scieSCIE
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.deptGIR IUNAT: Interacción Radiación-Materia-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Física-
crisitem.author.orcid0000-0002-8326-3169-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.fullNameRodríguez Pérez, Rafael-
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