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Comparison of observed and modeled cloud-free longwave downward radiation (2010–2016) at the high mountain BSRN Izaña station
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dc.contributor.authorGarcía Cabrera, Rosa Deliaes_ES
dc.contributor.authorBarreto Velasco, Áfricaes_ES
dc.contributor.authorCuevas Agulló, Emilioes_ES
dc.contributor.authorGröbner, Julianes_ES
dc.contributor.authorGarcía Rodríguez, Omaira Elenaes_ES
dc.contributor.authorGómez Peláez, Ángel Jesúses_ES
dc.contributor.authorRomero Campos, Pedro Migueles_ES
dc.contributor.authorRedondas, Albertoes_ES
dc.contributor.authorCachorro, Victoria E.es_ES
dc.contributor.authorRamos López, Ramónes_ES
dc.date.accessioned2018-06-13T07:19:29Z-
dc.date.available2018-06-13T07:19:29Z-
dc.date.issued2018-
dc.identifier.citationGeoscientific Model Development. 2018, 11(6), p. 2139–2152es_ES
dc.identifier.issn1991-959X-
dc.identifier.issn1991-9603-
dc.identifier.urihttp://hdl.handle.net/20.500.11765/9318-
dc.description.abstractA 7-year (2010–2016) comparison study between measured and simulated longwave downward radiation (LDR) under cloud-free conditions was performed at the Izaña Atmospheric Observatory (IZO, Spain). This analysis encompasses a total of 2062 cases distributed approximately evenly between day and night. Results show an excellent agreement between Baseline Surface Radiation Network (BSRN) measurements and simulations with libRadtran V2.0.1 and MODerate resolution atmospheric TRANsmission model (MODTRAN) V6 radiative transfer models (RTMs). Mean bias (simulated - measured) of <1.1% and root mean square of the bias (RMS) of <1% are within the instrumental error (2 %). These results highlight the good agreement between the two RTMs, proving to be useful tools for the quality control of LDR observations and for detecting temporal drifts in field instruments. The standard deviations of the residuals, associated with the RTM input parameters uncertainties are rather small, 0.47 and 0.49% for libRadtran and MODTRAN, respectively, at daytime, and 0.49 to 0.51% at night-time. For precipitable water vapor (PWV)>10 mm, the observed night-time difference between models and measurements is +5Wm-2 indicating a scale change of the World Infrared Standard Group of Pyrgeometers (WISG), which serves as reference for atmospheric longwave radiation measurements. Preliminary results suggest a possible impact of dust aerosol on infrared radiation during daytime that might not be correctly parametrized by the models, resulting in a slight underestimation of the modeled LDR, of about -3Wm-2, for relatively high aerosol optical depth (AOD>0.20).es_ES
dc.description.sponsorshipAERONET Sun photometers at Izaña have been calibrated within the AERONET Europe TNA, supported by the European Union’s Horizon 2020 research and innovation program under grant agreement no. 654109 (ACTRIS-2). This research has benefited from the result of the project INMENSE (funded by the Ministerio de Economía y Competividad from Spain, CGL2016-8068.-
dc.language.isoenges_ES
dc.publisherEuropean Geosciences Uniones_ES
dc.rightsLicencia CC: Reconocimiento CC BYes_ES
dc.subjectLongwave downward radiationes_ES
dc.subjectRadiative transfer modelses_ES
dc.subjectBaseline Surface Radiation Networkes_ES
dc.titleComparison of observed and modeled cloud-free longwave downward radiation (2010–2016) at the high mountain BSRN Izaña stationes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttps://dx.doi.org/10.5194/gmd-11-2139-2018es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/654109-
Colecciones: Artículos científicos 2015-2018


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