Thanks for the thoughtful responses. Inlined.. On Saturday, December 19, 2020 at 2:37:10 PM UTC-5 Greg Troxel wrote:
> > "t...@tom.org" <t...@tom.org> writes: > > > Looks like I might have unlocked some secret of the universe because my > > solar radiation numbers are regularly above the "theoretical max" as > shown > > in the Belchertown skin. > > The theoretical max is for sun on a completely clear day. > > When there are clouds and the sun goes in and out from behind them, I > see values over theoretical max. But I never see that when it's clear. > I see it under both circumstances. > > > I see this on two different stations in two different places, so I doubt > it > > is my station. > > > > Does anyone know how to adjust this max or have another recommendation? > > Don't adjust: I suspect it is right. My recommendation is to accept > that with a cloud edge as a lens, there is a temporary focusing. > > Now, actually looking at your data, things are not making sense. Are > you graphing the max radiation in a 5 min archive interval, or the > average? Your graphs look peaky and irregular and when looking at > average (non-Belchertown) I tend to see a nice approximation of a sine > wave, on clear-sky days. > > The weewx graph and Belchertown are the same. I am graphing the radiation field against the maxSolarRad. My archive interval is 5 mins, and I am not sure whether weewx stores the average or the high from the logger. I assume the high, but I assume that for no reason. Today my measured high radiation was 364 W/m^2 (but I'm down south, at > about 42.5). > 527 just doesn't seem right. I see values like that at times, but > mostly around 250 these days. > Where are you seeing 527? I think I got to 461 in MA (42.5) and 332 in VT at 44.49 but in VT, it was cloudier mid-day so I didn't get a true max. > Also cross check your console vs weewx. > Good idea. I'll do that tomorrow. > > > Or have I unlocked the secrets of the universe? > > I don't see hwo to turn this into a perpetual motion machine. > Read my mind. Anything outside the laws of physics is promising! > > But you have noticed something that very few people understand. Maybe > not even me :-) > > -- 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/95af0fdb-4d78-449f-8daa-a948c0055542n%40googlegroups.com.
