I took a peek over at blogger Anders’s place, and I found another great example of how to be a Climateballer. Now, I was banned from that site some time back, so I can’t comment on this there. Or at least, that’s what I thought. For my own gratification I tried submitting a comment there. I expected it to vanish without a trace like they usually do. It didn’t. It went through. It didn’t even land in moderation.
I don’t know if it will be allowed to stay, but since it showed up, I’m just going to post a screenshot of it. Read it, and you can learn more about how to be a Climateballer:
Kudos to miker613 for his attempts there. I hope he’s seen this link in my last post. It’s by Steve McIntyre, and it specifically lays out the point the people at Anders’s blog aren’t seeing:
First, there is no mention in MBH98 or the MBH98 SI that Preisendorfer’s Rule N was used to determine the number of retained PC series for tree ring networks. The only pertinent reference in MBH98 was as follows:
“Certain densely sampled regional dendroclimatic data sets have been represented in the network by a smaller number of leading principal components (typically 3–11 depending on the spatial extent and size of the data set). This form of representation ensures a reasonably homogeneous spatial sampling in the multiproxy network (112 indicators back to 1820). [our bolds]”
This statement contains no reference to the use of Preisendorfer’s Rule N.
In connection with the calculation of temperature principal component series, a different calculation, MBH98 does refer to the use of Preisendorfer’s Rule N as follows:
“a conventional Principal Component Analysis (PCA) is performed… An objective criterion was used to determine the particular set of eigenvectors which should be used in the calibration as follows. Preisendorfer’s selection rule ‘rule N’ was applied to the multiproxy network to determine the approximate number Neofs of significant independent climate patterns that are resolved by the network, taking into account the spatial correlation within the multiproxy data set.”
They say its hard to see the forest for the trees. I feel like there’s a joke in there about not being able to see the trees for the instrumental temperature record.