Pages: (22-48 )
Abstract
One of the problems in Nigeria is power supply, thus, the need for generating power from alternative source cannot be overemphasized. The use of solar energy for power generation and other uses is on the increase, this demand necessitates a better understanding of the underlying dynamics for better prediction, the solar radiation and relative humidity data collected are analyzed for a better understanding of the dynamics for the purpose of good prediction and modelling. The main aim of this study, is to investigate the nonlinear behavior of some selected atmospheric parameters within the University of Lagos Akoka.In this study, solar radiation and relative humidity acquired from the University of Lagos environs was analyzed using the recurrence plot(RP), and Recurrence Quantification Analysis (RQA) to reveal the nonlinear feature of the underlying dynamics during dry and wet seasons.Nonlinear dynamics and its associated tools readily lend itself for such analysis. In this research, nonlinearity in solar radiation and relative humidity data is tested using recurrence plot (RP) and recurrence quantification analysis (RQA) at the University of Lagos, Akoka. The result from the prediction and modelling for solar radiation shows that a high chaoticity exists for wet months than it does for dry months, due to strong and weak west Africa monsoonal effect during the wet and dry seasons respectively, and also, the result from the prediction and modelling for relative humidity, a high chaoticity exist for dry months than it does for wet months due to strong and weak west africa monsoonal effect during the wet and dry seasons respectively and also the effect of continental airmass (harmattan) that affect the relative humidity during the dry season.The result from the prediction and modelling of solar radiation reveals that a high chaoticity exists for wet months than it does for dry months, and also, the prediction and modelling for relative humidity, reveals that a high chaoticity exists for dry months than it does for wet months.
Keywords: Chaoticity; Relative humidity; Solar radiation; Dry season; Wet season,