I’ve been going through the literature and data on ocean sediments looking for proxies with high resolution in the Holocene – something that I discussed a few months ago. Kim et al 2004 and Lorenz et al 2006, two articles by the same group, discuss Holocene SST changes based on alkenones. Most of their proxies […]
A couple of years ago, before I got involved in proxy studies, I was interested in the UHI question and wrote to Phil Jones to request the data used in Jones et al 1990, his study purporting to show the unimportance of urban warming. Jones said that it was on a diskette somewhere and too […]
I made a subset of HadCRU3 to cover the continental U.S. and compared it to the USHCN-2000 version.
Just a quick note to all viewers/commenters/lurkers⟴hat I will be working on the WordPress theme for this blog in order to try to fix several things that got broken when I upgraded the WordPress software to 2.1. Because its a theme, no comments will be lost, nor posts deleted because I’m not affecting the database […]
Although the USHCN version used in Hansen’s 1999 press release seems to be expunged from official U.S. government records, it was fortunately preserved by John Daly. Jerry Brennan sent me a link to a version preserved by John Daly yesterday, from which I was able to replicate the version in the 1999 press release, as […]
According to the National Climatic Data Center (NCDC),, covered here, a new Beta version of the U.S. Historical Climatology Network will be released next year. They say that the new data set uses “recent scientific advances that better address uncertainties in the instrumental record. Because different algorithms were used in making adjustments to the station […]
On a couple of occasions, I’ve noted that near infrared water vapor parameterizations in HITRAN-1996 were incorrect and wondered about what the impact of these changes would have been on a non-retuned GCM. It looks like Collins et al JGR 2006 have done something like that – implementing HITRAN changes up to 2003. Unfortunately, they […]
Continuation of Unthreaded #3
One of the remarkable claims in the AR4 Summary for Policy-Makers was that they provided the first “ assessed likely range to be given for climate sensitivity”, which they reported as follows: the global average surface warming following a doubling of carbon dioxide concentrations … is likely to be in the range 2 to 4.5°C […]
Gavin Schmidt , one of the promoters of realclimate, is a climate modeler in his spare time, involved with GISS Model E. Dan Hughes, who sometimes posts here, has a new blog at which he’s posted up some comments on GISS code A GISS Model E code fragment. The code has the following interesting comment: […]
Climate Audit 
Theme Update in Progress
Just a quick note to all viewers/commenters/lurkers⟴hat I will be working on the WordPress theme for this blog in order to try to fix several things that got broken when I upgraded the WordPress software to 2.1. Because its a theme, no comments will be lost, nor posts deleted because I’m not affecting the database […]