Another Smoking Gun

Real Science

In USHCN V1, the TOBS adjustment was less than 0.4F, and goes flat after 1990.

ts.ushcn_anom25_diffs_pg (1) ts.ushcn_anom25_diffs_pg.gif (650×502)

In V2, they use the same algorithm

This net effect is about the same as that of the TOB adjustments in the HCN version 1 temperature data (Hansen et al. 2001), which is to be expected since the same TOB-adjustment method is used in both versions.

ftp://ftp.ncdc.noaa.gov/pub/data/ushcn/papers/menne-etal2009.pdf

But now, the TOBS adjustment is more than 0.3C, and doesn’t go flat after 1990.

ScreenHunter_655 Jun. 26 02.16

So the  same algorithm now produces very different results, favoring global warming – as with all the other data tampering. Zeke says he doesn’t know what caused the discrepancy.

Good enough for government work.

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