by J. Marohasy, April 2023 in WUWT
In the five years following the installation of probes in automatic weather stations (AWS) as they replaced mercury thermometers across Australia, the annual frequency of extremely hot days increased by an average 18.7%.
This new analysis by Perth journalist and climate researcher Chris Gillham makes a mockery of claims by the Bureau that the transition from mercury thermometers to automatic weather stations has had no effect on temperatures, and so there is no need to transcribe or make public the parallel data.
Chris has found that a majority of these AWS stations had an average 62.8% increase in their 99th percentile observations. These are the hottest 1 per cent of days calculated since the start year of each station.
by P. Gosselin, March 31, 2019 in NoTricksZone
and Pierre Gosselin
One fellow climate blogger recently wrote on how he’s been been looking at GHCN ‘unadjusted’ data and noticed that scientists at NASA appear to have been altering them: “This is a fairly disturbing development,” he wrote.
Heating up Reykjavik and Nuuk
Cited as an example is Reykyavik, Iceland. According to Tony Heller here, “The current version V4 has massively cooled the past, to make it look like Iceland is warming.”
Heller then posted a chart showing the difference between v2 unadjusted and the new v4 ‘unadjusted’ for the Reykjavik station.
Heller also found here that the same appears to be the case for Nuuk, Greenland as well.
by Paul Homewood, March 27, 2014 in NotaLotofPeopleKnowThat
NCDC have introduced a new method this month of calculating state, (but not national) temperatures in the US.
La géologie, une science plus que passionnante … et diverse