It's those user manuals again ...
I should think that you do need to calibrate the weather station for
your elevation, Ian, but I don't think that it will make much
difference. Prediction is made on absolute as well as relative
pressures, although temperature and wind direction pay their part.
Indeed, a weather balloon and a rainfall radar readout would be useful
as well, not to mention a bit of relative humidity :-)
100m elevation will be negligible, I should think. Weather will be
affected more by the geography of the place than that sort of
difference in elevation.
Chris
On 11 Dec 2007, at 09:15, swisspace wrote:
> I don't consider myself unintelligent, but playing with my digital
> weather station is making me doubt my abilities ;-)
>
> firstly do I need to be concerned that I lose the current barometric
> setting when I remove the batteries (so that it can see the external
> temperature sensor when its batteries have been changed). I think the
> weather prediction is done on change rather than values, also do I
> need
> to be concerned that I haven't calibrated it for 500m above sea level
> and just leave it at the default.
>
> I believe there are some online sites which give barometric pressure
> but
> I didn't find one for the small swiss village where I live only the
> nearest town which is 100m lower in altitude, do these things matter
> in
> the scheme of things i.e is it worth the effort, do I really need to
> know the exact barometric pressure?
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