Guest Post by Bob Tisdale
This post provides an update of the values for the three primary suppliers of global land+ocean surface temperature reconstructions—GISS through July 2015 and HADCRUT4 and NCEI (formerly NCDC) through June 2015—and of the two suppliers of satellite-based lower troposphere temperature composites (RSS and UAH) through July 2015. It also includes a model-data comparison.
The NOAA NCEI product is the new global land+ocean surface reconstruction with the creatively manufactured warming presented in Karl et al. (2015).
Even though the changes to the ERSST reconstruction since 1998 cannot be justified by the night marine air temperature product that was used as a reference for bias adjustments (See comparison graph here from the post linked above), GISS also switched to the new “pause-buster” NCEI ERSST.v4 sea surface temperature reconstruction with their June 2015 update. Last month after posting its June results, GISS also corrected…
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