The Spinning Enhanced Visible and Infra Red Imager (SEVIRI) radiometer, on board on Meteosat Second Generation(MSG) geostationary satellite, collects, each 15 minutes, images of the underneath part of the globe in 12 spectral bandswith a spatial resolution of 3 km. In this work the Aerosol Optical Thickness (AOT) retrieval over land using SEVIRIdata is presented. AOT at 0.55 μm is estimated minimizing the difference between measured and computed radiances inthe visible channel centered at 0.6 μm by means Look-Up Tables (LUT) obtained using 6S radiative transfer code. The0.6 μm surface reflectance has been computed using different procedures based on SEVIRI channels 3 and 4 centeredrespectively around 1.6 and 3.9 μm. For the 0.6 μm surface reflectance retrieval using the 1.6 μm procedure, themeasurements of five automatic sun-photometers of the Aerosols Robotic Network (AERONET) located in theMediterranean area (Avignon, Laegeren, Modena, Rome and Lecce) has been used. The procedures show encouragingresults in case of 1.6 μm procedure retrieval and the inadequacy of 3.9 μm procedure. An AOT map of the Po Valley(Italy), obtained from an MSG image taken during a typical winter polluted day, is shown in the paper and comparedwith MODIS retrieval.

AN AEROSOL OPTICAL THICKNESS RETRIEVAL ALGORITHM FOR METEOSAT SECOND GENERATION (MSG) DATA OVER LAND: APPLICATION IN THE MEDITERRANEAN AREA / Guerrieri, Lorenzo; Corradini, Stefano; Pugnaghi, Sergio; Santangelo, Renato. - STAMPA. - 6745:(2007), pp. Vol. 6745 67450D-01-Vol. 6745 67450D-11. ((Intervento presentato al convegno Remote Sensing of Clouds and the Atmosphere XII tenutosi a Florence, Italy nel 17 September 2007.

AN AEROSOL OPTICAL THICKNESS RETRIEVAL ALGORITHM FOR METEOSAT SECOND GENERATION (MSG) DATA OVER LAND: APPLICATION IN THE MEDITERRANEAN AREA

GUERRIERI, Lorenzo;CORRADINI, Stefano;PUGNAGHI, Sergio;SANTANGELO, Renato
2007

Abstract

The Spinning Enhanced Visible and Infra Red Imager (SEVIRI) radiometer, on board on Meteosat Second Generation(MSG) geostationary satellite, collects, each 15 minutes, images of the underneath part of the globe in 12 spectral bandswith a spatial resolution of 3 km. In this work the Aerosol Optical Thickness (AOT) retrieval over land using SEVIRIdata is presented. AOT at 0.55 μm is estimated minimizing the difference between measured and computed radiances inthe visible channel centered at 0.6 μm by means Look-Up Tables (LUT) obtained using 6S radiative transfer code. The0.6 μm surface reflectance has been computed using different procedures based on SEVIRI channels 3 and 4 centeredrespectively around 1.6 and 3.9 μm. For the 0.6 μm surface reflectance retrieval using the 1.6 μm procedure, themeasurements of five automatic sun-photometers of the Aerosols Robotic Network (AERONET) located in theMediterranean area (Avignon, Laegeren, Modena, Rome and Lecce) has been used. The procedures show encouragingresults in case of 1.6 μm procedure retrieval and the inadequacy of 3.9 μm procedure. An AOT map of the Po Valley(Italy), obtained from an MSG image taken during a typical winter polluted day, is shown in the paper and comparedwith MODIS retrieval.
Remote Sensing of Clouds and the Atmosphere XII
Florence, Italy
17 September 2007
Guerrieri, Lorenzo; Corradini, Stefano; Pugnaghi, Sergio; Santangelo, Renato
AN AEROSOL OPTICAL THICKNESS RETRIEVAL ALGORITHM FOR METEOSAT SECOND GENERATION (MSG) DATA OVER LAND: APPLICATION IN THE MEDITERRANEAN AREA / Guerrieri, Lorenzo; Corradini, Stefano; Pugnaghi, Sergio; Santangelo, Renato. - STAMPA. - 6745:(2007), pp. Vol. 6745 67450D-01-Vol. 6745 67450D-11. ((Intervento presentato al convegno Remote Sensing of Clouds and the Atmosphere XII tenutosi a Florence, Italy nel 17 September 2007.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/641837
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