ds_shortterm generates short-term (down to 1 minute) direct and diffuse irradiance time series from hourly mean values. The program uses a stochastic model which has been developed by Skartveit and Olseth which has been adapted in 2000 for daylight simulations by Oliver Walkenhorst [see references: Walkenhorst et al. 2002]. See also Appendix A.
The program requires the following keywords in the DAYSIM header file: