...In a paper we
recently covered, a team led by Berkeley researcher Zeke Hausfather compared the updated sea surface temperature dataset to shorter but simpler and independent sets of measurements made by satellites and automated floats. That analysis confirmed that the updated dataset is more accurate than its predecessor.
In
a post for Carbon Brief, Hausfather noted that NOAA’s updated dataset doesn't cause it to show more warming than the datasets run by NASA, the Berkeley team, and the UK Met Office. Instead, the update caused NOAA to stop showing
less warming than everyone else.
The House Science Committee’s Twitter account has yet to tweet a link to Hausfather's story.
Hausfather also points out a glaring error in the
Mail on Sunday article that illustrates its author’s lack of knowledge. The article includes a graph of both the NOAA and UK Met Office records. The NOAA data appears to be roughly 0.1°C warmer than the UK Met Office data across the entire time span—supposedly evidence of “flawed NOAA data showing higher temperatures.” Apart from the fact that a constant offset would have no impact on temperature
trends, the offset is simply a mistake. The numbers in the two datasets are calculated relative to different baselines—the 1901-2000 average for NOAA, and the 1961-1990 average for the Met Office.
Once you put them on a common baseline, the differences largely disappear.