I should add (and I'll try to post each of my notes only once -- something is wrong where there are multiple copies of many of your messages, so it would be good if you looked into and fixed that):
I make plots of solar radiation and UV from my archive, and decided to plot them together and made up factor for plotting -- without claiming that it's meaningful, just to get things at a similar scale to look at. Basically when I started plotting, I picked a pure sunny day and divided, and used that. It's clear that the actual ratio of irradiance to UV index changes between winter and summer (for the daily peaks). This isn't really surprising, as the peak sun angle is much lower in winter and either of these being angle dependent isn't odd, but it was interesting to see. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/rmia7a7jviu.fsf%40s1.lexort.com.
