NASA spokesman Gavin Schmidt announced at realclimate that Hansen et al had fixed the Russian (and elsewhere data), following corrections to the data made by their supplier (NOAA GHCN.) Even though errors of over 10 deg C had occurred over the world’s largest land mass, it only reduced GISS October temperature by 0.21 deg C […]
In the last few days, NASA has been forced to withdraw erroneous October temperature data. The NASA GISS site is down, but NASA spokesman Gavin Schmidt said at their blog outlet that “The processing algorithm worked fine.” Schmidt blamed the failure on defects in a product from a NASA supplier and expressed irritation that NASA […]
It’s colder in Russia in October than in September, as Napoleon found out to his cost in 1812. Sitting in the ashes of a ruined city without having received the Russian capitulation, and facing a Russian maneuver forcing him out of Moscow, Napoleon started his long retreat by the middle of October. Flash forward almost […]
On Oct 20, 2008, I sent Santer the following request: Dear Dr Santer, Could you please provide me either with the monthly model data (49 series) used for statistical analysis in Santer et al 2008 or a link to a URL. I understand that your version has been collated from PCMDI ; my interest is […]
Jean S, UC and I spent a considerable amount of time a couple of years ago, trying to figure out how MBH99 confidence intervals were calculated – see here. I asked the NAS panel to investigate the matter, but they failed to do so. After their report, I asked NAS president Cicerone to merely write […]
Erroneous geographical locations of precipitation proxies have been source of mild amusement to CA readers. Long ago, in connection with MBH, we observed that the rain in Maine fell mainly in the Seine – an error that Mann stubbornly refused to correct in Mann et al 2007 – not that any reviewer cared. A few […]
Yesterday, I observed some seemingly bizarre patterns in Mannian splicing, which seemed at first to be an inexplicable stupid pet trick. However, in this case, what seems to be a stupid pet trick appears to implement an intentional Mannian procedure referred to in passing in the SI, but not shown in the online source code. […]
Yesterday I left my exposition of Mannian CPS just before trying to do a NH composite. There was another stupid pet trick left, that made replication of this step a little trickier than one would think. UC had sent me a file entitled NHmean.txt (which I’ve placed online), which was produced during gridboxcps.m, and proved […]
David Letterman sometimes has a segment entitled “Stupid Pet Tricks”, which is an apt title for today’s post – more parsing of Mannian CPS, recently discussed here. With helpful contributions from Jean S, UC and Roman M, I can now pretty much replicate Mannian CPS, but only through a variety of devices that fall into […]
For several months, the words Obama and McCain have not been allowed in posts here. I’m declaring a one-day moratorium on this policy. This was not because I’m uninterested in the U.S. election – quite the opposite. I thought that this particular election was an important one. And, quite aside from the importance of the […]
Climate Audit 