Total Solar Radiation in relation to duration of sunshine


  • B. R. YADAV Meteorological office, New Delhi



An attempt has been made to establish a relation between the total radiation from sun and sky and the duration of bright sunshine based On the formula., Q;Q A = a+b’n/N), Q and QA being the radiation amounts On one square centimeter of horizontal surface at the surface of the earth and at the top of .the atmosphere respectively and n and N being the actual and the maxi mum possible hours of bright sunshine respectively. The values of the regression constants a and b have been computed for daily, weekly and monthly data. Data from daily observations have been grouped for the dry and the monsoon seasons, and the constants a and b calculated and compared with those obtained by others.


Mean monthly total radiation at a few places in north India, having the same cloud regime as at Delhi, has also been computed and discussed.




How to Cite

B. R. YADAV, “Total Solar Radiation in relation to duration of sunshine”, MAUSAM, vol. 16, no. 2, pp. 261–266, Apr. 1965.



Shorter Contribution