This paper introduces SKYSPECTRA, an open-source data package comprising spectral daylight measurements collected from various sources worldwide. The dataset encompasses measurements from both long-term measurement sites and specific periods or experiments. The paper describes the data collection, selection, and organisation process within a standardised framework, ensuring consistency in naming conventions, formats, and units across all datasets. It also describes how the data is structured for operability in programming languages like R or Python for data analysis. SKYSPECTRA aims to facilitate further research and development of daylight applications that leverage spectral sky data by providing a comprehensive and standardised sample spectral daylight dataset that represents geographical locations, seasons, atmospheric conditions, and times of day.
Balakrishnan, P., Diakite-Kortlever, A., Dumortier, D., Hernández-Andrés, J., Kenny, P., Maskarenj, M., Pierson, C., Thorseth, A., Xue, P., & Knoop, M. (2023). SKYSPECTRA: An opensource data package of worldwide spectral daylight. Proceedings of the 30th Session of the CIE Ljubljana, Slovenia, September 15 – 23, 2023, Volume 1 – Part 1. Published. 30th Quadrennial Session of the CIE, Ljubljana, Slovenia. https://doi.org/10.25039/x50.202