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dc.contributor.authorObiso, Vincenzo
dc.contributor.authorJorba, Oriol
dc.contributor.otherBarcelona Supercomputing Center
dc.date.accessioned2018-01-29T16:12:20Z
dc.date.available2018-01-29T16:12:20Z
dc.date.issued2018-01
dc.identifier.citationObiso, V.; Jorba, O. Aerosol-radiation interaction in atmospheric models: Idealized sensitivity study of simulated short-wave direct radiative effects to particle microphysical properties. "Journal of Aerosol Science", Gener 2018, vol. 115, p. 46-61.
dc.identifier.issn0021-8502
dc.identifier.urihttp://hdl.handle.net/2117/113346
dc.description.abstractWe assessed the impact of the microphysical parameterization of natural and anthropogenic aerosols on simulated short-wave radiative effects due to Aerosol-Radiation Interaction (ARI). Layer radiative properties (optical depth, single scattering albedo and asymmetry factor) of dry mineral dust, organic carbon and a black carbon-sulfate mixture have been calculated with a T-matrix code in the short-wave spectral region, after perturbing relevant particle microphysical properties (size distribution, refractive index, mixing state). For each aerosol species, an idealized atmospheric layer and three events of increasing intensity have been set. Then, short-wave direct radiative effects (clear-sky) have been simulated at the top-of-atmosphere (TOA) and at surface (SFC) using the radiative transfer model RRTMG_SW (widely used in atmospheric models), separately for each aerosol species. We observed considerably variable impacts of the particle microphysical perturbations on the layer radiative properties for mineral dust and organic carbon, mainly due to the different sizes of the two species. For the black carbon-sulfate mixture, the single scattering albedo has been found to be much lower in the internal mixing case. Regarding the direct radiative effects, we observed perturbation-induced variability ranges (evaluated against the base net fluxes in absence of aerosols) always within the perturbation range set for the particle microphysical properties . This work, therefore, quantitatively demonstrates that small uncertainties on the aerosol microphysical parameterization propagate on the simulated direct radiative effects mainly with a loss of strength. Considerable perturbation-induced absolute variations of the direct radiative effects have been found (above all for large aerosol amounts), which could significantly affect the model assessments of the ARI radiative effects and therefore meteorological forecasts and climate predictions.
dc.description.sponsorshipThis work has been funded by the Spanish Ministry of Economy and Competitiveness [grant: CGL2013-46736-R] and by the ACTRIS Research Infrastructure Project of the European Union's Horizon 2020 research and innovation programme [grant agreement: No. 654169]. Further support has been provided by the Severo Ochoa Program, awarded by the Spanish Government [grant: SEV-2011-00067]. Vincenzo Obiso is funded by the Spanish Ministry of Economy and Competitiveness [‘FPI-SO’ grant: SVP-2013- 067953].
dc.format.extent16 p.
dc.language.isoeng
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivs 4.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/es/
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subject.lcshAerosols--Environmental aspects
dc.subject.lcshAtmospheric circulation
dc.subject.otherAerosol microphysical properties
dc.subject.otherAerosol optical properties
dc.subject.otherRadiative transfer simulations
dc.subject.otherAerosol-radiation interaction
dc.subject.otherAerosol direct radiative effects
dc.titleAerosol-radiation interaction in atmospheric models: Idealized sensitivity study of simulated short-wave direct radiative effects to particle microphysical properties
dc.typeArticle
dc.subject.lemacCirculació atmosfèrica
dc.subject.lemacAerosols atmosfèrics
dc.identifier.doi10.1016/j.jaerosci.2017.10.004
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0021850216304050#!
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO//CGL2013-46736-R/ES/PREDICCION DE AEROSOLES Y EVALUACION DEL FORZAMIENTO RADIATIVO PARA APLICACIONES METEOROLOGICAS Y CLIMATICAS CON EL MODELO ON-LINE NMMB%2FBSC-CTM/
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/654109/EU/Aerosols, Clouds, and Trace gases Research InfraStructure/ACTRIS-2
local.citation.publicationNameJournal of Aerosol Science
local.citation.volume115
local.citation.startingPage46
local.citation.endingPage61


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