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Aeronet and Esr Sun Direct Products Comparison Performed on Cimel Ce318 and Prede Pom01 Solar Radiometers : Volume 12, Issue 2 (07/02/2012)

By Estellés, V.

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Book Id: WPLBN0003975329
Format Type: PDF Article :
File Size: Pages 31
Reproduction Date: 2015

Title: Aeronet and Esr Sun Direct Products Comparison Performed on Cimel Ce318 and Prede Pom01 Solar Radiometers : Volume 12, Issue 2 (07/02/2012)  
Author: Estellés, V.
Volume: Vol. 12, Issue 2
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Smyth, T. J., Campanelli, M., Utrillas, M. P., Martínez-Lozano, J. A., & Estellés, V. (2012). Aeronet and Esr Sun Direct Products Comparison Performed on Cimel Ce318 and Prede Pom01 Solar Radiometers : Volume 12, Issue 2 (07/02/2012). Retrieved from http://www.ebooklibrary.org/


Description
Description: Dept. Física de la Terra i Termodinámica, Universitat de València, C/ Dr. Moliner 50, 46100 Burjassot, Spain. The European Skynet Radiometers network (EuroSkyRad or ESR) has been recently established as a research network of European Prede POM sun – sky radiometers. Moreover, ESR is federated with SKYNET (SKYrad NETwork), an international network mostly present in East Asia. In contrast to SKYNET, the European network also integrates users of the Cimel CE318 sunphotometer. Keeping instrumental duality in mind, a set of open source algorithms has been developed consisting of two modules for: (1) the retrieval of direct sun products from the sun extinction measurements; and (2) the inversion of the sky radiance to derive aerosol optical properties. In this study we evaluate the ESR direct sun products (spectral aerosol optical depth, Angström wavelength exponent and columnar content of water vapour) in comparison with the AERosol RObotic NETwork (AERONET) products. Specifically, we have applied the ESR algorithm to a Cimel CE318 and Prede POM01L simultaneously for a 4 yr database measured at the Burjassot site (Valencia, Spain), and compared the resultant products with the AERONET direct sun retrievals obtained with the same Cimel CE318 instrument. The comparison show that aerosol optical depth differences are mostly within the nominal uncertainty of 0.003 for a standard calibration instrument, and fall within the nominal AERONET uncertainty of 0.01–0.02 for a field instrument. Therefore, we present an open source code that can be used for both radiometers and whose results are comparable to those of AERONET and SKYNET.

Summary
AERONET and ESR sun direct products comparison performed on Cimel CE318 and Prede POM01 solar radiometers

Excerpt
Smirnov, A., Holben, B. N., Eck, T. F., Dubovik, O., and Slutsker, I.: Cloud screening and quality control algorithms for the \textsc{AERONET} database, Remote Sens. Environ., 73, 337–349, 2000.; Young, A. T.: On the Rayleigh scattering optical depth of atmosphere, J. Appl. Meteorol., 20, 328–330, 1981.; AERONET website, http://aeronet.gsfc.nasa.gov, 2011.; Blanco-Muriel, M., Alarcón-Padilla, D. C., López-Moratalla, T., and Lara-Coira, M.: Computing the solar vector, Solar Energy, 70, 431–441, 2001.; Bodhaine, B. A., Wood, N. B., Dutton, E. G. and Slusser, J. R.: On Rayleigh optical depth calculations, J. Atmos. and Ocean Tech., 16, 1854–1861, 1999.; Bruegge, C. J., Conel, J. E., Green, R. O., Margolis, J. S., Holm, R. G., and Toon, G.: Water Vapor Column Abundance Retrievals During \textsc{FIFE}, J. Geophys. Res., 97, 18759–18768, 1992.; Red Ibérica de Medida de Aerosoles, http://www.rima.uva.es, 2011.; Campanelli, M., Nakajima, T., and Olivieri, B.: Determination of the Solar Calibration Constant for a Sun-Sky Radiometer: Proposal of an In-Situ Procedure, Appl. Optics, 43, 651–659, 2004.; Campanelli, M., Gobbi, G., Tomasi, C., and Nakajima, T.: Intercomparison between aerosol characteristics retrieved simultaneously with a Cimel and Prede sun-sky radiometers in Rome (Tor Vergata \textsc{AERONET} site), Óptica Pura y Aplicada, 37, 3159–3164, 2004.; Fröhlich, C. and Shaw, G. E.: New determination of Rayleigh scattering in the terrestrial atmosphere, Appl. Optics, 19, 1773–1775, 1980.; Campanelli, M., Lupi, A., Nakajima, T., Malvestuto, V., Tomasi, C., and Estellés V.: Summertime columnar content of atmospheric water vapor from ground based Sun sky radiometer measurements through a new in situ procedure, J. Geophys. Res., 115, D19304, doi:10.1029/2009JD013211, 2010.; Campanelli, M., Estelles, V., Smyth, T., Tomasi, C., Martnez-Lozano, J. A., Claxton, B., Muller, P., Pappalardo, G., Pietruczuk, A., Shanklin, J., Colwell, S., Wrench, C., Lupi, A., Mazzola, M., Lanconelli, C., Vitale, V., Congeduti, F., Dionisi, D., Cardillo, F., Cacciani, M., Casasanta, G. P., and Nakajima, T.: Monitoring of Eyjafjallajoekull volcanic aerosol by the new European SkyRad users (ESR) sun-sky radiometer network, Atmos. Environ., 48, 33–45, doi:10.1016/j.atmosenv.2011.09.070, 2012.; Che, H., Shi, G., Uchiyama, A., Yamazaki, A., Chen, H., Goloub, P., and Zhang, X.: Intercomparison between aerosol optical properties by a PREDE skyradiometer and CIMEL sunphotometer over Beijing, China, Atmos. Chem. Phys., 8, 3199–3214, doi:10.5194/acp-8-3199-2008, 2008.; Eck, T., Holben, B. N., Reid, J. S., Dubovik, O., Smirnov, A., O'{}Neill, N. T., Slutsker, I., and Kinne, S.: Wavelength dependence of the optical depth of biomass burning urban and desert dust aerosols, J. Geophys. Res., 104, 31333–31349, 1999.; Estellés, V., Utrillas, M. P., Mart\'inez-Lozano, J. A., Alcántara, A., Olmo, F. J., Alados-Arboledas, L., Lorente, J., Cachorro, V., Horvath, H., Labajo, L., de la Morena, B., Vilaplana, J. M., D\'iaz, A. M., D\'iaz, J. P., Elias, T., Silva, A. M., Pujadas, M., and Rodr\'iguez, J. A.: Aerosol related parameters intercomparison of Cimel sunphotometers in the frame of the VELETA 2002 field campaign, Óptica Pura y Aplicada, 37, 3289–3297, 2004.; Estellés, V., Utrillas, M. P., Mart\'inez–Lozano, J. A., Alcántara, A., Alados-Arboledas, L., Olmos, F. J., Lorente, J., De Cabo, X., Cachorro, V., Horvath, H., Labajo, A., De La Morena, B., D\'iaz, J. P., D\'iaz, A. M., Silva, El\'ias, T., Pujadas, M., Rodriguez, J. A., Cañada, J., and Garc\'ia, Y.: Intercomparison of spectroradiometers and sunphotometers for the determination of the aerosol optical depth during the VELETA

 

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