Measurement of solar radiation—I. Radiation instruments ...
1993-6-1 · Pergamon Press Ltd MEASUREMENT OF SOLAR RADIATION--I. RADIATION INSTRUMENTS H. P. GARG and S. N. GARG Centre for Energy studies, Indian Institute of Technology, Hauz Khas, New Delhi-110016, India 1. INTRODUCTION In order to assess the availability of solar energy arriving on the earth, measurement of solar radiation at some