Monthly Archives: March 2009

A Peek behind the Curtain

Mar 4, 2009 – 1:21 PM

On Feb 26, Garth Paltridge, Albert Arking and Michael Pook’s report on a re-examination of NCEP reanalysis data on upper tropospheric humidity was published online by Theoretical and Applied Climatology. Upper tropospheric humidity is a critical topic in assessing the strength of water vapor feedbacks – knowledge that is essential to understand just how much […]

By Stephen McIntyre | Posted in General | Comments (362)

Gavin and the PC Stories

Mar 3, 2009 – 12:27 AM

How many principal components to retain? Recent readers of Climate Audit may not realize that this was an absolute battleground issue of MBH and Wahl and Ammann. In one sense, it was never resolved with MBH back in 2003-2005, but that was before the existence of blogs made it possible to focus attention on problems. […]

By Stephen McIntyre | Posted in Steig at al 2009 | Tagged , , , | Comments (98)