Ground-based observations of solar radiation at three Italian sites, during the eclipse of 29 March, 2006: Signs of the environment impact on incoming global irradiance

The time-patterns of ground-level solar irradiance during the solar eclipse of 29 March, 2006, were observed at three Italian stations (Lampedusa, Mt. Cimone and Bologna) using different radiometric techniques. The global irradiance measured at the sites was found to reach the minimum at times not coinciding with those predicted by radiative transfer model evaluations, with ahead or lag times depending on the optical characteristics of the surface–atmosphere system in the areas surrounding of the stations. This different behaviour has been mainly attributed to the different influence of the environmental conditions on the diffuse radiance component measured at the observation sites. The present results indicate that the incoming diffuse radiance recorded at the three stations was appreciably affected by contributions arising from extended regions of about 30–100 km range from the stations. Such an explanation agrees very well with the theoretical evaluations obtained in earlier studies. The surrounding environmental areas of impact at ultraviolet wavelengths have been found to be wider than those in the visible and near-infrared spectral ranges

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Paolo Bonasoni (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Vito Vitale (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Claudio Tomasi (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Christian Lanconelli (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Boyan Petkov (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Riccardo Santaguida (Italian Air Force Meteorological Service – C.A.M.M. Mt. Cimone) - Alcide Giorgio Di Sarra (Energy and Environmental Modeling an ENEA Technical Unit) - Elena Benedetti (Institute of Acoustics “O. M. Corbino” (IDAC), CNR) - Damiano Sferlazzo (Energy and Environmental Modeling an ENEA Technical Unit) - Henri Diemoz (Regional Agency for Environmental Protection-ARPAV) - Giovanni Agnesod (Regional Agency for Environmental Protection-ARPAV) (2010) . Ground-based observations of solar radiation at three Italian sites, during the eclipse of 29 March, 2006: Signs of the environment impact on incoming global irradiance. Elsevier Science Publishing Company https://geoportal.mountaingenius.org/geonetwork/srv/api/records/21597d1b-db9a-4183-a479-89f3d75fbe62

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File identifier: 21597d1b-db9a-4183-a479-89f3d75fbe62 XML

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Protocol: WWW:LINK-1.0-http--link

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Metadata language: eng

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Climatology, meteorology, atmosphere
Environment

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Lampedusa , Mt. Cimone , Bologna

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radiometric techniques , radiative transfer model evaluations , solar radiation , incoming global irradiance

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Date ( Publication ): 2010-04-10T00:00:00

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"Ground-based observations of solar radiation at three Italian sites, during the eclipse of 29 March, 2006: Signs of the environment impact on incoming global irradiance".

Atmospheric Research (April 2010), 96 (1), pg. 131-140 .

Petkov, B., Tomasi, C., Vitale, V., di Sarra, A., Bonasoni, P., Lanconelli, C., Benedetti, E., Sferlazzo, D., Diemoz, H., Agnesod, G.