Category Archives: Surface Record

Articles focussing on the reliability of the surface record

Low Head and the Gnomes of Norwich

Low Head is not a manouevre at a Hollywood party or a physical description of the gnomes of Norwich (the location of CRU), but a lighthouse in Tasmania, which John Daly photographed and brought to the attention of Neil Plummer, who had used it in Jones et al 1990. Plummer wrote back to Daly that […]

The Maatsuyker Exclusion

Jones said that the names of the Australian sites was unknown. However it turned out that the names of these locations are known to mankind and, with a little effort, that the names of these sites could be tracked down from an Australian reference list through the CSIRO reference numbers at the Jones site. My […]

Phil Jones and Australian Billabongs

We’ve talked about Phil Jones’ Russian and Chinese sites, where we’ve just scratched the surface so far. Warwick Hughes took a first crack at some years ago, but was unsuccessful in identifying the Jones sites. Jones, never making things easy, did not provide the names of any of the Australian sites, nor the WMO identification […]

Measuring Precipitation on Willis' Boots

Willis writes in with latest FOI refusal from CRU, saying that they are unable to provide a list of the sites used in HadCRU3.

FOI: The “Final” Answer on Jones et al 1990

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) […]

Recyclable AbathyThermograph Instruments

Lyman et al have had to correct their paper on ocean cooling, as the effect that they observed has proved to derive in part from a bias from “Xpendable Bathy Thermograph (XBT) instruments”. They report The rapid decrease in globally integrated upper (0—750 m) ocean heat content anomalies (OHCA) between 2003 and 2005 reported by […]

CRU on Rural Data Exclusion

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 […]

Reading a Thermometer

One of our readers asked how it was to read a thermometer. I’ve got a slightly different question: if I can locate daily maximum and minimum readings for Dulan airport on the internet, why can’t NOAA? This is not as trivial a point as it might seem, as it turns out that Dulan airport is […]

Gridcell 47.5N 97.5E: Mongolia

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.

Gridcell 42N, 112E Huhehaote

Here’s another strange CRU gridcell in which warm early values of Huhehaote aren’t used.