Your weather station is based on the Fine Offset series of weather stations. It has a very simple way of correcting for altitude: it simply adds a constant to the absolute pressure, to produce what it calls "relative pressure." This is *not* what commercial or government weather stations do. They use much more complicated formulas.
WeeWX also uses these more complicated formulas. The result is "altimeter", corrected for altitude only, and "barometer" corrected for altitude, temperature, and humidity. These are what you should use to compare with Meteo channels, etc. The "relative pressure" produced by the Fine Offset series is generally worthless. I don't know why anyone would want it. -tk On Sun, Sep 22, 2019 at 10:55 AM Miguel Ángel <[email protected]> wrote: > Thanks Andrew and Thomas for your replies and your help, now I think I am > near of my solution. Okey, let me tell you the news. > > First I have checked the current info about the station with wee_device > --current, and the relative pressure doesnt appear, only the absolute, in > this point I figured I would have to calculate it. > > Second I did that you say, Thomas, and added *rel_pressure = pressure + > 1.801* and edit the template, but then, WeeWX show 20.02345324 (I dont > remember the decimals exactly), a lot of decimals and not the unit (hPa). > Then, I added *rel_pressure = pressure + 984.59* (the difference) and > now, it show the pressure I want but with a lot of decimals and without the > unit, and I dont know yet if this data will be good in the future or next > days. > I adjunt a screenshot about the status of barometer now, and the output of > wee_device --current. > > > And yeah, I know that Absolute Pressure is more "reliable", but I want to > see the relative pressure because in my country, all is expresed in > relative pressure, Meteo Channels, basic meteo stations, etc and I > am accustomed to see it. > Here is an example of WeeWX working near of my country ( > http://www.colladojermoso.com/colladojermoso.com/meteo/meteo/index.html), > it show the relative too. > > Sorry if my english is not so good, it isn't my native language. > > > Miguel. > > -- > 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]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/877ddc60-aff2-4d18-9266-c6a01ef9bb66%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/877ddc60-aff2-4d18-9266-c6a01ef9bb66%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEDrs9udNHWVMjgxGO%2BwBHMGNSHA4O6%2BFj_%3Dik14jyV6tQ%40mail.gmail.com.
