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High Turbidity Solis Clear Sky Model: Development and Validation

Published in Remote Sensing. 2018, vol. 10, no. 3, p. 435
Abstract The Solis clear sky model is a spectral scheme based on radiative transfer calculations and the Lambert–Beer relation. Its broadband version is a simplified fast analytical version; it is limited to broadband aerosol optical depths lower than 0.45, which is a weakness when applied in countries with very high turbidity such as China or India. In order to extend the use of the original simplified version of the model for high turbidity values, we developed a new version of the broadband Solis model based on radiative transfer calculations, valid for turbidity values up to 7, for the three components, global, beam, and diffuse, and for the four aerosol types defined by Shettle and Fenn. A validation of low turbidity data acquired in Geneva shows slightly better results than the previous version. On data acquired at sites presenting higher turbidity data, the bias stays within ±4% for the beam and the global irradiances, and the standard deviation around 5% for clean and stable condition data and around 12% for questionable data and variable sky conditions.
Keywords Solis schemeClear skyRadiation modelRadiative transferHigh turbidityWater vapor
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Research groups Systèmes énergétiques
ISE Pôle Sciences
ISE Energie
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INEICHEN, Pierre. High Turbidity Solis Clear Sky Model: Development and Validation. In: Remote Sensing, 2018, vol. 10, n° 3, p. 435. doi: 10.3390/rs10030435 https://archive-ouverte.unige.ch/unige:103002

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Deposited on : 2018-03-19

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