Rereading this thread come to understand that definition/semantics is a critical aspect in this discussion. *Bluntly* summarized: - Sunshine = seeing difference between lighted area and shadowed area. Like KarenK's device is doing - Lightlevel = level of undirected solar radiation, not/hardly differentating on wavelength. Like most light sensors in 'private' PWSes will provide. - Duration = derivative time-value of one of above, considering the time that a specfied threshold level is exceeded, with result expressed as accumulating time/day
*Correct understanding?* If correct, more attention seems needed that nomenclature of variables is properly tuned; otherwise obvious confusion. Op zaterdag 4 mei 2024 om 18:17:18 UTC+2 schreef Karen K: > n7uv...@gmail.com schrieb am Samstag, 4. Mai 2024 um 05:12:04 UTC+2: > > > What is "direct solar irradiance"? Is there someone at the sensor deciding > that it's direct? > > > As Jaques wrote, this is a sensor that sees a very small angle of the sky > (approximately half a degree) and it is moving and always looking at the > position, where the sun should be seen. > -- 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/8ea528a3-45e2-4e6c-ab5f-56665cfa35a1n%40googlegroups.com.
