Nijaguna, B.T.2020-03-302020-03-301986, 1986, Vol.4, , pp.2528-2532https://idr.nitk.ac.in/handle/123456789/6592In an attempt to obtain the applicable correlation for the estimation of solar intensity at Surathkal, the number of bright sunshine hours and actual solar insolation were monitored. Regression analysis of the measured data when fitted by a least squares technique resulted in constants in an Armstrong-Page type correlation on a monthly, seasonal and annual basis. The obtained correlations are least erroneous when compared with the actual measured data and are also more appropriate compared to estimates obtained from formulae reported by other studies.Book chapter