McShane-Wyner: Death of a Hockey Stick?
We have the WUWT crowd declaring the death of the hockey stick. Lambert declares it more of a hockey stick than the original. How do the hockey sticks stack up … literally? We take a quick peek below the fold.
McShane-Wyner Fig 16
First up, Mann 99 (Northern Hemisphere) …
Next, Mann 08 (Northern Hemisphere)
Next, Mann 08 (global)
NOTE: Messed up the vertical scaling on this and don’t have time to fix it until tonight.. (Fixed and updated)
As far as the range of of the reconstructions, there is an obvious divergence of trends from about 1450-1500 or so. On the other hand, the Mann’s reconstructions and McShane-Wyner don’t seem to diverge to the extent that they are incompatible. There is a large overlap in the uncertainties.
McShane and Wyner are well aware of this and present Fig 17, their own superimposition on previous paleo-reconstructions. There is a difference of about 0.6C over a period of 500 years between MW and the other reconstructions. About the same amount of warming we have seen over just the last 100 years.
McShane-Wyner Fig 17