Abstract: In this paper, we report the results of a preliminary investigation to determine the precision and accuracy of Volz sunphotometry. We find that errors may be introduced into turbidities obtained from such photometry through ...

Abstract: In a previous paper, we presented evidence for a large apparent day-to-day variation of the outside-atmosphere deflections of two Volz sunphotometers and discussed the consequences for Volz sunphotometry should such variation ...