Hello Tom, My question is more related to understand theoritical calculations :-) Weewx works perfectly !
but I try to understand what is done in stdWXCalculate. I may have misunderstand, but my understanding is that calculation is: barometer = pressure / exp (-elev_meter / (t_K * 29.263)) is this correct? t_K is current temp in Kelvin or ? Le samedi 11 mars 2017 16:13:10 UTC+1, Tom Keffer a écrit : > > As explained in the weewx Wiki, *barometer* depends on the temperature 12 > hours ago, but *altimeter* does not. > > If your station emits *pressure*, that is, the raw gauge pressure, the > others should be calculated by StdWXCalculate. Is that not happening? > > -tk > > On Sat, Mar 11, 2017 at 2:49 AM, wysiwyg <[email protected] <javascript:>> > wrote: > >> ok, I found some more informations. >> >> The formula here: >> https://barani.biz/apps/sea-level-pressure/ >> >> seems to be a so called "international barometric leveling formula" >> >> at least, it's stated with this name in french wikipedia >> https://fr.wikipedia.org/wiki/Formule_du_nivellement_barom%C3%A9trique >> >> >> I was not able to find it as clear in english wiki >> https://en.wikipedia.org/wiki/Barometric_formula >> >> >> >> -- >> 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 [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
