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Measurements on pointing error and field of view of Cimel-318 Sun photometers in the scope of AERONET [Discussion paper]
Título : Measurements on pointing error and field of view of Cimel-318 Sun photometers in the scope of AERONET [Discussion paper]
Autor : Torres, BenjamínToledano, CarlosBerjón, AlbertoFuertes, DavidMolina, V.González, R.Canini, MariusCachorro, Victoria E.Goloub, PhilippePodvin, T.Blarel, L.Dubovik, OlegBennouna, Yasmine
Palabras clave : Radiometer observations; Error; Desert dust aerosol; AErosol RObotic NETwork; Sun photometer
Fecha de publicación : 2013
Editor: European Geosciences Union
Citación : Atmospheric Measurement Techniques Discussion. 2013, 6, p. 3013–3057
Versión del editor: https://dx.doi.org/10.5194/amtd-6-3013-2013
Resumen : Sensitivity 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.
Patrocinador: We thank the AERONET, PHOTONS, RIMA and WRC staff for their scientifc 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 Nr. 262254 [ACTRIS].
URI : http://hdl.handle.net/20.500.11765/7544
ISSN : 1867-8610
Colecciones: Artículos científicos 2010-2014


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