I've managed to get the Applescript working to upload data to the UK Met Office WOW site.
However, if I set the site elevation on the WOW website, then I seem to get 2 elevation pressure adjustments.
For Example:
- Weather station shows 996.2 mb (abs - i.e. absolute pressure at site)
- Site elevation is 96 metres and WeatherCat adjusts this to 1007.48 which is correct
- It I set WOW site elevation to 96 meters, I get Pressure (at station) as 1007.2 and Mean Sea Level Pressure as 1016.8 (these figures are actually approximate as I didn't write them down at the time, but I'm sure you get my drift)
If I set the WOW site elevation to zero, then I do get the correct Mean Sea Level Pressure of 1007.2, but of course the station pressure shows the same (1007.2) as elevation is set to zero.
The weather station is a 'cheap and nasty' Gadget/W-8681 type 'clone', but it does seem to be feeding the correct site pressure (absolute) to WeatherCat. I checked adjacent aviation met observations and the mean sea level pressure is around 1007 mbs.
Regards
Gary
Met Office WOW Site
Shotatton (50779022)