This is a sequel to the previous post, where the list of data information, taken from the NOAA file, is printed. I have extended the time scale to 2000 years. This time I have used 41-year triangle smoothing. And I have experimented with inclusion and omission of instrumental temperatures.
This the plot over 2 millennia with HADCRUT3NH (with 11 year smoothing) in a background light grey.
More below the jump...
And here is the same plot, but without HADCRUT3, nor other reconstructions with instrumental components
And here is the 1 millenium plot, with smoothing and instrumental
and now the same without instrumental
Quantitative continuity estimates
7 hours ago