Abstract
A study of the depletion of solar radiation at Helwan Observatory has shown, for Egypt, that:a) Diffuse reflexion and absorption by suspended particles in the atmosphere constitute about 20 percent of the total depletion;b) Absorption by water vapour is the only factor that should be evaluated at any place to give an estimation of the solar radiation received at that place. This can be obtained either from the mean values of the surface water vapour pressure which have been considered in detail, or, for individual cases, from spectroscopic measurements of the precipitable water content whose daily variations have been studied.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
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 call
