Tag Archives: callendar

Guy Callendar vs the GCMs

Jul 26, 2013 – 1:21 PM

As many readers have already surmised, the “GCM-Q” model that visually out-performed the Met Office CMIP5 contribution (HadGEM2) originated with Guy Callendar, and, in particular, Callendar 1938 (QJRMS). My attention was drawn to Callendar 1938 by occasional CA reader Phil Jones (see here and cover blog post by co-author Ed Hawkins here.) See postscript for […]

By Stephen McIntyre | Posted in Modeling, UK Met Office, Uncategorized | Also tagged | Comments (248)

Results from a Low-Sensitivity Model

Jul 21, 2013 – 3:04 PM

Anti-lukewarmers/anti-skeptics have a longstanding challenge to lukewarmers and skeptics to demonstrate that low-sensitivity models can account for 20th century temperature history as well as high-sensitivity models. (Though it seems to me that, examined closely, the supposed hindcast excellence of high-sensitivity models is salesmanship, rather than performance.) Unfortunately, it’s an enormous undertaking to build a low-sensitivity […]

By Stephen McIntyre | Posted in Modeling, Uncategorized | Comments (210)