Today I’m going to discuss another Russian gridcell 62.5N; 77.5E, which is one of the gridcells that was identified by IPCC as having a particularly strong trend . Warwick Hughes previously analyzed this cell because of this here, with this map highlighting the location of the Tarko-Sale gridcell in the top left corner of the […]
Since I’ve been able to closely replicate one HadCRU3 gridcell from GHCN v2 data, it’s interesting to compare other HadCRU3 gridcells to GHCN versions. I’ve looked through a number of gridcells and each one has its own issues. Today, I’ll do a comparison of Malye Karmakuly, Novaya Zemlya, which we’ve discussed before, and the corresponding […]
Before I get to Phil Jones and the Kazakh copper smelter, I wish to report that, somewhat to my own amazement, I’ve been able to get a surprisingly close approximation of a few HadCRUT3 gridcells from third-party data. Here is a comparison of the annualized HadCRUT3 gridcell 47N;67E as compared to GHCN v2 for Karsakpay […]
The other key network in the seminal Jones et al 1990 on urbanization (relied upon in AR4) is their Chinese network. The idea that China between 1954 and 1983 – the age of Chairman Mao and the Great Leap Forward – could have achieved consistency in temperature measurement that eluded the U.S. observing system (with […]
Beneath the seemingly placid world of U.S. weather co-operatives, recent analysts have found a turbulent world of changing observation times, with regime change after regime change. Hansen and Karl have been forced – unwillingly, I’m sure – to adjust past temperatures downwards. In contrast to the seemingly almost Iraqian chaos of the U.S. weather observation […]
We’ve observed the changes in GISS over the past 7 years. Jean S draws our attention to the changes in GISS temperature history since Hansen et al 1981. I’ve tried to re-plotted the current Hansen data – right frame – in the same format as Hansen et al 1981 Figure 3. This is not as […]
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.
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 […]
Climate Audit 