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Title: Analysing sky luminance scans and predicting frequent sky patterns in Singapore
Authors: Wittkopf, S.K. 
Soon, L.K.
Ng, E.Y.Y.
Issue Date: 2007
Citation: Wittkopf, S.K., Soon, L.K., Ng, E.Y.Y. (2007). Analysing sky luminance scans and predicting frequent sky patterns in Singapore. Lighting Research and Technology 39 (1) : 31-51. ScholarBank@NUS Repository.
Abstract: A thorough analysis of sky distributions can help in the prediction of daylight patterns and thus provides a good understanding of architectural window and building envelope design. This paper introduces three methods of analysis for sky distributions, namely the relative indicatrix and gradation classification, and two other independent methods established by Kittle and Tregenza. All these three methods were verified for their feasibility for analysing the extreme daylight conditions in Singapore, which is located at the equator. The most suitable approach, from Tregenza, was eventually adopted in analysing the measured data from Singapore IDMP station. The prediction of frequent sky patterns in Singapore was based on the CIE Standard General Skies, as well as a complete version considering all 36 theoretical sky types. © The Chartered Institution of Building Services Engineers 2007.
Source Title: Lighting Research and Technology
ISSN: 14771535
DOI: 10.1177/1365782806070683
Appears in Collections:Staff Publications

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