I wrote again on Apr 17, 2007 on my FOI request observing that part (B) of my FOI request had not been answered: the identification of the stations used as comparanda in the calculations of Jones et al 1990. Thank you for your courtesy and attention in this matter, which has successfully resolved part (A) […]
Category Archives: Jones et al 1990
In their “explanation” of why Chinese rural data is not included in CRU, Jones says: None of the rural data (because of the annual resolution) entered subsequent versions of the Climatic Research Unit temperature database. This is obviously untrue as the “rural” sites in TR055 from which the Jones et al data derived had the […]
Here’s another gridcell where CRU has truncated high early values. This is the gridcell that contains the important Jacoby Mongolian tree ring series. If untruncated gridcell information is used, then the ring width chronology has a negative correlation to gridcell temperature. What a swamp.
Here’s another strange CRU gridcell in which warm early values of Huhehaote aren’t used.
A couple of days ago, I reported on the comparison of Jones et al 1990 data to the TR055 data archived at NCDC, noting that the data was the same for all but one series. I’ve now been comparing the TR055 versions to GHCN v2 and HadCRU3 and noticing some puzzling aspects to both GHCNv2 […]
I have collated the Jones et al 1990 temperature data against annual average data from the TR055 data set, reviewing all 84 plots in the format shown below. Here is a plot for Shanghai. The Jones et al 1990 version was plotted first in black and the annual average from TR055 secondly in red. If […]
I’ve reported here on my progress with UEA in obtaining identification of the sites used in Jones et al 1990, a study of the urban heat island effect. [Update – the Jones et al data was posted up here. ] I initially inquired a couple of years ago as I mentioned here. I sent an […]
I discussed the China network in Jones et al 1990 which is still cited as key evidence against UHI having a material effect on temperature estimates (even in IPCC 4AR). Shortly after Jones et al was published, Wang et al. 1990 ( W-C Wang, Z, Zeng and T. Karl, Urban Heat Islands in China, 1990. […]
Last week, I reported on my progress (or rather lack of progress) in identifying the stations used in Jones et al 1990 on urban heat islands. Here’s the next episode.
Some feedback on my request for the sites used in Jones et al 1990 (no data):