All Sky

Welcome to the PXS All-Sky Irradiance Model!

The PXS All-Sky Irradiance Model is the main physics package that calculates surface irradiance variables. It is primarily comprised of REST2 and FARMS which compute the clear-sky and cloudy irradiances respectively.

References

REST2

Christian A. Gueymard, “REST2: High-performance solar radiation model for cloudless-sky irradiance, illuminance, and photosynthetically active radiation - Validation with a benchmark dataset”, Solar Energy, Volume 82, Issue 3, 2008, Pages 272-285, ISSN 0038-092X, https://doi.org/10.1016/j.solener.2007.04.008. (Science Direct Link).

FARMS

Yu Xie, Manajit Sengupta, Jimy Dudhia, “A Fast All-sky Radiation Model for Solar applications (FARMS): Algorithm and performance evaluation”, Solar Energy, Volume 135, 2016, Pages 435-445, ISSN 0038-092X, https://doi.org/10.1016/j.solener.2016.06.003. (Science Direct Link).