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dc.contributor.authorRomán, Robertoes_ES
dc.contributor.authorTorres, B.es_ES
dc.contributor.authorFuentes, D.es_ES
dc.contributor.authorCachorro, V. E.es_ES
dc.contributor.authorDuvobik, O.es_ES
dc.contributor.authorToledano, C.es_ES
dc.contributor.authorCazorla Cabrera, Albertoes_ES
dc.contributor.authorBarreto, A.es_ES
dc.contributor.authorBosch, J. L.es_ES
dc.contributor.authorTapionok, T.es_ES
dc.contributor.authorGonzález, R.es_ES
dc.contributor.authorGoloub, P.es_ES
dc.contributor.authorPerrone, R.-M.es_ES
dc.contributor.authorOlmo Reyes, Francisco José es
dc.contributor.authorAlados-Arboledas, Lucases
dc.identifier.citationRomán, R.; et al. Remote sensing of lunar aureole with a sky camera: Adding information in the nocturnal retrieval of aerosol properties with GRASP code. Remote Sensing of Environment, 196: 238-252 (2017). []es_ES
dc.description.abstractThe use of sky cameras for nocturnal aerosol characterization is discussed in this study. Two sky cameras are configured to take High Dynamic Range (HDR) images at Granada and Valladolid (Spain). Some properties of the cameras, like effective wavelengths, sky coordinates of each pixel and pixel sensitivity, are characterized. After that, normalized camera radiances at lunar almucantar points (up to 20° in azimuth from the Moon) are obtained at three effective wavelengths from the HDR images. These normalized radiances are compared in different case studies to simulations fed with AERONET aerosol information, giving satisfactory results. The obtained uncertainty of normalized camera radiances is around 10% at 533 nm and 608 nm and 14% for 469 nm. Normalized camera radiances and six spectral aerosol optical depth values (obtained from lunar photometry) are used as input in GRASP code (Generalized Retrieval of Aerosol and Surface Properties) to retrieve aerosol properties for a dust episode over Valladolid. The retrieved aerosol properties (refractive indices, fraction of spherical particles and size distribution parameters) are in agreement with the nearest diurnal AERONET products. The calculated GRASP retrieval at night time shows an increase in coarse mode concentration along the night, while fine mode properties remained constant.en_EN
dc.description.sponsorshipThis work was supported by the Andalusia Regional Government (project P12-RNM-2409) and by the “Consejería de Educación, Junta de Castilla y León” (project VA100U14); the Spanish Ministry of Economy and Competitiveness and FEDER funds under the projects CGL2013-45410-R, CMT2015-66742-R, CGL2016-81092-R and “Juan de la Cierva-Formación” program (FJCI-2014-22052); and the European Union's Horizon 2020 research and innovation programme through project ACTRIS-2 (grant agreement No 654109).en_EN
dc.description.sponsorshipGrupo de Investigación Física de la Atmósfera (RNM119)es_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Licenseen_EN
dc.subjectSky cameraes_ES
dc.subjectMoon es_ES
dc.subjectHigh dynamic rangees_ES
dc.titleRemote sensing of lunar aureole with a sky camera: Adding information in the nocturnal retrieval of aerosol properties with GRASP codeen_EN

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