| Popis: |
This paper reports on the preliminary results for Salamanca (Spain) of the relationship between the different components of solar radiation and suspended particulate matter in the atmosphere, characterized as black smoke, during the period from January to September, 1990. Both the total number of days period and clear days only were considered with a view to eliminating the effect of cloud, above all, on the diffuse component of solar radiation. The relationships with diffuse/global and diffuse/direct indices were also studied. |
