1 gen 2004 anni - Splicing becomes apparent to M&M, who write to Science demonstrating massive hockey-stick bias.

Descrizione:

McIntyre discovers Mann manually constructed the tree ring chronology in Fortran instead of using good code like R. While transliterating the manual code into R, he notices "a difference at the short-segment centering step."

"Thinking a little about the impact of short-segment centering, it was "obvious" that this would bias towards the weighting of HS-shaped series. We did some simulations (less sophisticated than the later simulations of our GRL article), wrote this up and sent an article to Nature, pointing out that one site (Sheep Mountain) had nearly 400 times the weight of Mayberry slough. At the time, we didn’t know anything very much about Sheep Mountain."

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