Let’s continue Mann 2008 – Replication with EIV. To run regreclow.m and regrechigh.m you’ll need files climate, eofnumb, and proxyN, where N runs from 1 to 19. I’ve run prepinputforrecon.m with required folder structure (C:\holocene\s1\zuz10\work1\temann\ etc.) in my computer. After that I did run regrechigh.m in folder C:\holocene\s1\zuz10\work1\temann\zzrecon1209\nhnhscrihad\highf and regreclow.m in folder C:\holocene\s1\zuz10\work1\temann\zzrecon1209\nhnhscrihad\lowf The regem […]
%%%% Matlab version of Hockey Stick % %Mann, M. E., R. S. Bradley, and M. K. Hughes (1998), Global-scale %temperature patterns and climate forcing over the past six centuries, %Nature, 392, 779– 787. % %Mann, M. E., R. S. Bradley, and M. K. Hughes (1999), Northern %Hemisphere temperatures during the past millennium: Inferences, uncertainties, %and […]
http://en.wikipedia.org/wiki/Snowball_Earth However, there is only one “very reliable” datum point identifying tropical tillites,[Evans (2000)] which makes statements of equatorial ice cover somewhat presumptuous. It is worth remembering that many sedimentary features traditionally associated with glaciers can also be formed by other means.[Arnaud, E.; Eyles, C.H. (2002)] Evidence includes: * Dropstones (stones dropped into marine sediments), […]
Previous post (link). A follow-up post (link) If someone felt that it was necessary to detrend the bristlecone pine-based PC1 of Mann’s AD1000 network for CO2 fertilization, it’s doubtful that the initial instinct would be to coerce the data to a network of northern Canadian-Alaskan tree ring chronologies where the possibility of regional differences must […]
Hans Erren has digitized the Ababneh Sheep Mountain version and I’m going to show some extremely interesting knock-on results both on MBH98-99 and Mann and Jones 2003. I started in on Mann and Jones 2003, partly for a little variety and partly because the Sheep Mountain impact was particularly strong on this network. Before I […]
In calibration problem we have accurately known data values (X) and a responses to those values (Y). Responses are scaled and contaminated by noise (E), but easier to obtain. Given the calibration data (X,Y), we want to estimate new data values (X’) when we observe response Y’. Using Brown’s (Brown 1982) notation, we have a […]
Chris Monckton has started a series of weekly articles on the current state of climate science, including the Hockey Stick affair and Steve McIntyre’s contributions in that area, in the UK newspaper the Sunday Telegraph The Royal Society says there’s a worldwide scientific consensus. It brands Apocalypse-deniers as paid lackeys of coal and oil corporations. […]
Here are Judith Curry’s Comments on the Wegman Report. I appreciate these sorts of contributions and am obviously relying on such contributions (Willis, bender, etc.) more and more.
McIntyre and McKitrick have done a great job casting doubt on the first part of the Mann "Hockey Stick" and I will be surprised if the IPCC can still retain it in its original form. However, we are still up against the second part of the "Hockey Stick" the alleged surface temperature record, as promulgated […]
Climate Audit 