Empirical Models for the Correlation of Monthly Average Daily Global Solar Radiation with Hours of Sunshine on a Horizontal Surface at Karachi, Pakistan

Authors : Firoz AHMAD, İntikhab ULFAT

Pages : 301-307

Doi:10.3906/sag-1205-102

View : 12 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A new set of constants for Angstrom-type correlation of first and second order, to estimate monthly average daily global solar radiation, has been obtained employing sunshine hours data recorded at Karachi, Pakistan insert ignore into journalissuearticles values(Lat. 24° 54` N, Long. 67° 08` E);. Least square regression is performed to derive these constants. The correlation equations developed are employed to calculate the monthly average daily global solar radiation. These results are then compared with various other existing correlations and the measured data. Excellent agreement has been found between the estimated and the measured values.
Keywords : Turk J Phys, 28, 2004, 301 307 Turk J Phys, vol 28, iss 5