Via Midwest Chick a while ago, there's a new independent audit of the weather stations that feed daily data to the climate databases. This is a follow up to the 2009 Surface Stations Project. Results are, well, what you'd expect:
- The 2009 report found 89 percent of stations were unacceptable by NOAA’s own standards. The 2022
report found an even greater percentage of stations—approximately 96 percent—are sited unacceptably.
The official U.S. temperature record, which was shown in 2009 to be heat-biased due to poor siting
issues, appears to be even more biased in 2022.
- Of the 128 stations surveyed, only two were found to be a Class 1 (best-sited) station: the Dubois, Idaho
Agricultural Experiment Farm, and the St. Joseph, Louisiana Agricultural Experiment Farm.
- Three stations were found to be Class 2 (acceptably sited).
- The remaining 123 stations were found to be Class 3, 4, and 5, and therefore considered unacceptably
sited in accordance with Leroy’s classification system and NOAA publication 10-1302.
- The 7 percent increase in unacceptably sited stations from 2009 to 2022 seems to be in line with the
Gallo and Xian study noting the increase in ISAs near USHCN stations.
- Based on the sample, it appears that waste-water treatment plants (WWTP) comprise approximately
25-30 percent of the entire COOP network. It is difficult to get an accurate count because NOAA / NWS
does not discern between WWTPs and other stations in the HOMR database. WWTPs are a poor place
to measure data to detect climate change because they grow with population, and the industrial processes
they perform (sewage digestion) generate substantial amounts of heat, creating a heat sink effect.
- In some interviews with observers, it became clear NOAA / NWS personnel are aware their station
siting does not adhere to NOAA standards, but they do not have the means or the time to take corrective
action. A prime example is a Class 5 USHCN station in a radio station parking lot in Grants Pass,
Oregon, where the radio station engineer recognized the problem, but the local NWSFO refused to
address it—even after multiple requests to relocate the MMTS sensor.
It's like they want lousy data, as long as it shows things hotter than they really are.
UPDATE 10 JULY 2023 14:04: Chris Lynch finds this, which is worth remembering. The Greenland Ice Core Project (GRIP) shows climate over the last 10,000 years or so:
I blame SUVs for all the warming during the Roman Climate Optimum ...