放射輝度分布の不規則性と雲の状態による要因 : 日射の直散分離に影響を及ぼす気象要素の特性研究(その2)

概要

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It is important to understand properties of the essences of the specific meteorological elements, to improve the precision of the separation of global to direct and diffuse solar irradiance. In this paper, we picked two meteorological elements up, one is the irregularity of the sky radiance distribution and the other is the cloud status, and examined the characteristics of each factor. For the irregularity of the sky radiance distribution, we proposed the expressive index of this factor, and showed the relationship with the irradiance separation. For the cloud status, we showed the characteristics of appearance of the cloud combination each altitude of the sky. When the correction model based on the cloud status was applied to the irradiance separation, the precision of prediction was slightly improved.
2007-01-30