Authors : Gedion Elijah Ahons and Kamoli Makanjuola Kazeem
Abstract: The objective was to examine the relationship between dew point temperature, relative humidity of the air and sun shine hours in Jos, Nigeria and derived the predictive model. The 10 years (2001 to 2010) of measurements were obtained from the weather observatory at the University of Jos, for analyses. The sunshine duration (in hours and tenths) were fundamentally measured while the dew point temperature and the relative humidities were derived from the Mason’s psychrometer with the aid of the Blundell Harling humidity slide rule. Regression analysis techniques were then used to analyse and examine the relationships between the weather elements. The coefficient of regressional analysis R2 and Ra2 (R2 adjusted) were calculated. An empirical equation which was derived was used to compare the measured dew point temperature values and the predicted. That of R2 gave 98.5% while that of Ra2 registered 88.0%. It was discovered that the developed model can be used for the prediction of dew point temperature on a short and long-term basis.
Gedion Elijah Ahons and Kamoli Makanjuola Kazeem, 2014. Dew Point Temperature, Relative Humidity and Sunshine Hours in Jos, Nigeria: Their Relationship and Predictive Model. Environmental Research Journal, 8: 17-20.