Abstract
The Angstrom-Page type correlation between monthly average, daily global irradiation on the horizontal and the monthly average relative duration of sunshine has been derived for Kumasi, Ghana, using 20 years data of measured values by the Ghana Meteorological Services Department. The correlations were carried out at three levels: for each month of the year; for the dry, wet and harmattan seasons; and for the full year. At the three levels, the maximum absolute errors in the estimated global irradiation are 0.59, 4.24 and 8.34%, respectively. The analyses were repeated after incorporating multiple reflections between the ground and sky and non-burning of the sunshine recorder chart when the solar elevation was below 4°. These latter considerations did not significantly affect the results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
