Renewable Energy, Vol.28, No.10, 1523-1544, 2003
Methodology for generating daily clearness index index values K-t starting from the monthly average daily value (K)over-bar(t). Determining the daily sequence using stochastic models
The facility to generate weather data from limited inputs and independently of specific locations would allow simulations of energetic systems to be run at locations for which detailed weather records do not exist. This article presents a methodology to calculate synthetic daily solar radiation values and describes how sequences of daily global radiation can be generated using as input the monthly average radiation. A stochastic model, ARIMA(1,1,1) is presented, as well. (C) 2003 Published by Elsevier Science Ltd.
Keywords:daily clearness index;monthly average daily clearness index;stochastic models;autocorrelation correlograms;partial correlation correlograms;ARIMA;time series