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On the statistical distribution of clear-sky index and solar radiation transmittances: A worldwide analysis
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DOI：10.1016/j.solener.2026.114805.png)
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Abstract
En 中文
• Solar k-indexes are modeled using 3-component truncated skew-normal mixtures. • The mixture model is bounded, asymmetric, and physically interpretable. • Validation uses 1-min radiation data from 126 stations worldwide. • A novel radiation climate classification is proposed using fitted densities.
Keywords:
Statistical distribution
Mixture model
Clear-sky index
Transmittance
Climate classification
Solar drought characterization
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6.2W
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