Tom Keffer <tkef...@gmail.com> writes: > If you provide almanac_time, then it looks them up in the database. > Otherwise, it uses the last time stamp in the database. > > If the database is not available, then it defaults to 15°C and 1010 mbar.
I am curious about the rationale for 1010, vs 1013.25. And, barometric vs station pressur for sunrise, or maybe it's really surface pressure at the tangent point. But I get it that this delta is in the weeds, vs 980 and 1030 maybe being detectably different. I have not attempted to average my pressures over multiple years to see if that comes out at the standard pressure, which would be a blend of a "average is different from standard" signal and calibration error. -- 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/rmi5yfu6fol.fsf%40s1.lexort.com.
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