Yesterday, we had two curiosities from comparing GHCN data to HadCRU3 data – the apparent inconsistency between the HadCRU3 version in some gridcells e.g. 27.5N 117.5E and the apparent termination of much GHCN station data in 1990. Accordingly I collected all stations in the GHCN v2 data base from this gridcell and compared them with, […]
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 […]
Here are a few plots of Jones et al 1990 China urban vs rural sites. Maybe one of our more computer-oriented people could make a little applet to yield 42 comparisons from the small data set which is now collated. For now, here are some very quick and non-prettied up comparisons. I started with a […]
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 wa reading through Rob Wilson’s article on Gulf of Alaska ring widths and the following sentence caught my eye: Mean temperature data for Sitka (1832—1887), that are not included in the GHCN archive, were also obtained (Phil Jones personal communication). You may recall CRU’s refusal letter to Willis Eschenbach, one of a number of […]
We’ve discussed CRU and GISS gridded data, but many of the recent news stories about the “warmest winter” come from NOAA gridded data (for example here and here) , which seems to be gaining a little market share of news attention for gridded data. I’ve started taking a look at the data. Given the intransigence […]
One of the Team’s more adventurous assumptions in creating temperature histories is that there was an abrupt and universal change in SST measurement methods away from buckets to engine inlets in 1941, coinciding with the U.S. entry into World War II. As a result, Folland et al introduced an abrupt adjustment of 0.3 deg C […]
Here is a remarkable graphic from a new publication, Kent et al 2007, showing the distribution of SST measurements between buckets and engine inlets from 1970 on. I think that this evidence has great significance for the Folland and Parker SST adjustment, which is one of the most fundamental Team adjustments. I’ll discuss this more […]
There is an enormous online archive of SST measurements, which would be well worth someone looking at, to get a feel for what the raw data looks like.
Climate Audit 