Unfortunately, it's much more complicated than that. The Vantage emits *sea-level pressure* (pressure corrected for altitude and temperature). The problem becomes back calculating what the gauge (absolute) pressure must have been, then, from that, calculating altimeter.
The necessary code is in weewx/uwxutils.py. Also, see the Wiki notes on atmospheric pressure <https://github.com/weewx/weewx/wiki/Barometer,-pressure,-and-altimeter>. -tk On Wed, Jan 11, 2017 at 11:29 AM, laki1 <[email protected]> wrote: > I believe if you are asking for formula you should use this > > http://keisan.casio.com/exec/system/1224575267 > > And update according to previous posts > > > W dniu środa, 11 stycznia 2017 07:59:32 UTC+1 użytkownik Gone Bush napisał: >> >> The problem: I've had my Vantage Pro2 for a couple of months and finally >> got round to configuring the altitude in the console. >> >> (The Setup function doesn't step through that option.) >> >> Now what I want to do is correct the historical barometric data. >> >> So, to my question: What is the formula that will do that? (Google has >> failed 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 [email protected]. > 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.
