An analysis of climatic parameters and sky condition classification

摘要: Abstract In modelling solar radiation, of the required data daylight illuminance, luminous efficacy, radiance and luminance sky distributions, are always analysed under various types. Sky conditions frequently categorised into overcast, partly cloudy clear using some common climatic including cloud cover ( CLD ), sunshine hour SH ) radiation. This paper presents study these parameters their applications in classification condition. Frequency occurrence cumulative frequency distribution each indicator have been established to interpret prevailing Hong Kong. Special features on defining clearness highlighted implications for energy-efficient building designs discussed.