ftp://ftp.ncdc.noaa.gov/pub/data/ushcn/v2/monthly/menne-etal2009.pdf
They say that the USHCN2 TOBS is about the same as the USHCN1 TOBS.
Now check out the USHCN1 docs.
USHCN1 shows a 0.3 Fahrenheit increase in the TOBS adjustment from 1920 to 2000, but USHCN2 shows 0.3 Celsius increase in TOBS from 1920 to 2000.
Looks like they nearly doubled their adjustments, by not understanding the difference between Fahrenheit and Celsius. Either that or they were hoping to slip a huge cheat in under the radar. (I’ve looked at the data more closely now, and it is not a C v F discrepancy. The problem is that there are two upwards shifts in the USHCN2 data – one in 1950 and another in 1990. I will document this soon.)
All released NCDC US temperature data is severely tainted by this, including their claims of “hottest year ever”
You decide – incompetence, cheating, or both?
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