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Solar irradiance in NW Italy

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Summary

An analysis is made of the monthly mean global and diffuse irradiance values recorded by the Genoa University Geophysical Institute radiation network to derive characteristic elements of the solar climate in four typical NW Italy locations. Diffuse irradiation was estimated for the stations where diffuse irradiation data were not recorded, by using correlations between measured data with clearness parameter and sunshine index. Local factors which affect the attenuation of global irradiance under cloudless skies are discussed.

Zusammenfassung

Die vom Strahlungsaufzeichnungsnetz der Geophysikalischen Hochschule Genua aufgenommenen monatlichen Mittelwerte der Global- und Himmelsstrahlung werden untersucht, wobei charakteristische Elemente des Sonnenklimas von vier typischen Stationen in NW-Italien deduziert werden. Die Himmelsstrahlung wird für diejenigen Stationen, wo diese nicht aufgenommen wird, durch Anwendung von Korrelationen zwischen Meßwerten und einem Klarheitsparameter bzw. einer Sonnenscheinzahl geschätzt. Außerdem werden örtliche Faktoren diskutiert, die die Schwächung der Globalstrahlung unter wolkenlosem Himmel bestimmen.

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Authors and Affiliations

  1. Geophysical Institute, Genoa University, Genoa, Italy

    V. Pasquale

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  1. V. Pasquale
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This paper is dedicated to the memory of Prof. Mario Bossolasco of whom the author had the honour of being a pupil.

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Pasquale, V. Solar irradiance in NW Italy. Theor Appl Climatol 38, 85–92 (1987). https://doi.org/10.1007/BF00868421

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  • DOI: https://doi.org/10.1007/BF00868421

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