[time-nuts] Re: Dense pressure data of the last 24h and the next 48h

[Jürgen Appel]

Hej,

On Sunday, 16 January 2022 12.31.20 CET Attila Kinali wrote:

> Not really a time-nuts thing, but sciency, still:
> 
> You might have heard by now, that yesterday around 4:26 UTC there was a
> massive volcanic eruption in Tonga. Big enough to be visible on my
> barometric measurements all around the globe.
> 
> The primary peak is nicely visible, but the secondary from the shock-wave
> going the other way around, about 7h later is quite a bit smaller. Now I
> would like to lift this out of the noise and thus I am looking for some
> more barometric data recorded in Europe. I can't be the only one who does
> record that every minute, am I? ;-) Especially, I would like to capture
> when the shock-wave comes around the earth a second time, which will be
> probably burried in the daily fluctuations we have.

To bridge back to time-nuts things ;-)

NMIs contributing to the international atomic time TAI also typically log 
their environmental data, which is accessible at 
https://webtai.bipm.org/ftp/pub/tai/data/2022/meteo/

Maybe there's the treasure you are looking for. At least the first event is 
visible clearly in almost every trace without any sophisticated data 
processing.

-- 
Jürgen Appel
Research Scientist
The Danish National Metrology Institute
Dansk Fundamental Metrologi, DFM A/S (dfm.dk)
Kogle Allé 5
DK-2970 Hørsholm
Denmark

Mobile: +45 25459049
Email: jap at dfm.dk
VAT: DK-29217939

GPG key: 
http://pgp.mit.edu:11371/pks/lookup?search=J%C3%BCrgen+Appel&op=get
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