No, Rob K is saying that the 1070-5 mb occasionally shown over Greenland on charts is the pressure after being corrected to sea-level rather than that which would actually be experienced up on the plateau. All isobaric charts have to show sea-level pressures, or they'd be pretty meaningless. The 1078 record in Siberia would no doubt, in accordance with convention, also have been corrected to sea-level. It would be interesting to know the altitude of the place holding the record, though I was under the impression that Siberia is fairly flat.
Yes that is what I meant. Given the low temperatures and high altitude there, pressure readings as SLP equivalent must be slightly meaningless as you are modelling a huge slice of atmosphere that doesn’t exist.
I’m sure I remember reading that the record high pressure was over 1080mb, about 1081 or 1082, in Siberia? Maybe that has been discounted recently.
edit: from the Guinness Book of Records:
The highest barometric pressure ever recorded was 1083.8mb (32 in) at Agata, Siberia, Russia (alt. 262m or 862ft) on 31 December 1968.
Edited by user
19 January 2020 15:59:46
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Reason: Not specified
Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome