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Measurements on pointing error and field of view of Cimel-318 Sun photometers in the scope of AERONET
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dc.contributor.authorTorres, Benjamínes_ES
dc.contributor.authorToledano, Carloses_ES
dc.contributor.authorBerjón, Albertoes_ES
dc.contributor.authorFuertes, Davides_ES
dc.contributor.authorMolina, V.es_ES
dc.contributor.authorGonzález, Ramiroes_ES
dc.contributor.authorCanini, Mariuses_ES
dc.contributor.authorCachorro, Victoria E.es_ES
dc.contributor.authorGoloub, Philippees_ES
dc.contributor.authorPodvin, T.es_ES
dc.contributor.authorBlarel, L.es_ES
dc.contributor.authorDubovik, Oleges_ES
dc.contributor.authorBennouna, Yasminees_ES
dc.contributor.authorFrutos, Ángel M. dees_ES
dc.identifier.citationAtmospheric Measurement Techniques. 2013, 6(8), p. 2207-2220es_ES
dc.description.abstractSensitivity studies indicate that among the diverse error sources of ground-based sky radiometer observations, the pointing error plays an important role in the correct retrieval of aerosol properties. The accurate pointing is specially critical for the characterization of desert dust aerosol. The present work relies on the analysis of two new measurement procedures (cross and matrix) specifically designed for the evaluation of the pointing error in the standard instrument of the Aerosol Robotic Network (AERONET), the Cimel CE-318 Sun photometer. The first part of the analysis contains a preliminary study whose results conclude on the need of a Sun movement correction for an accurate evaluation of the pointing error from both new measurements. Once this correction is applied, both measurements show equivalent results with differences under 0.01° in the pointing error estimations. The second part of the analysis includes the incorporation of the cross procedure in the AERONET routine measurement protocol in order to monitor the pointing error in field instruments. The pointing error was evaluated using the data collected for more than a year, in 7 Sun photometers belonging to AERONET sites.es_ES
dc.description.sponsorshipWe thank the AERONET, PHOTONS, RIMA and WRC staff for their scientific and technical support. Financial support was provided by the Spanish CICYT (CGL2009-09740 and CGL2011-23413, CGL2011-13085-E). The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 262254 [ACTRIS].es_ES
dc.publisherEuropean Geosciences Uniones_ES
dc.rightsLicencia CC: Reconocimiento CC BYes_ES
dc.subjectRadiometer observationses_ES
dc.subjectDesert dust aerosoles_ES
dc.subjectAErosol RObotic NETworkes_ES
dc.subjectSun photometeres_ES
dc.titleMeasurements on pointing error and field of view of Cimel-318 Sun photometers in the scope of AERONETes_ES
Appears in Collections:Artículos científicos 2010-2014

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