The Relationship between Solar Radiation and Sunshine Duration for Baghdad City


The aim of this research is to estimate the values of global solarradiation from sunshine duration measurements for Baghdad city.Angstrom Prescott formula was used as a standard relationship betweenglobal solar radiation and sunshine duration. Measurements of thesetwo variables for five years (1984-1988) are used to establish therelationship between these variables for winter, sprig, summer and fall,and for annual results showed the correlation coefficients (r) were(0.35, 0.50, 0.36, 0.51, 0.50) respectively. The correlation coefficientsmay be enhanced by introducing other Meteorological parameters