Uninsulated Buckets A CA reader emailed me, observing that there may be relevant differences in insulated and uninsulated buckets in the post-World War 2 period, which could easily affect adjustment schedules. This makes a lot of sense to me and might reconcile a few puzzles and opening others. Let’s say that the delta between engine […]
After unveiling the Hadley Center adjustment error that has been used in all temperature compilations for the past 20 years, Phil Jones stated: Climate scientists should think about data quality more often, says Jones, so that there is no opportunity for incorrect data to sow seeds of doubt in people’s minds about the reality of […]
Thompson et al 2008, writing in Nature, assure their readers, the data before ~1940 and after the mid-1960s are not expected to require further corrections for changes from uninsulated bucket to engine room intake measurements Is there a shred of evidence to support this assertion? There is convincing evidence otherwise – evidence already reported here. […]
In an article in Nature today by Thompson, Kennedy, Wallace and Phil Jones claim: Here we call attention to a previously overlooked discontinuity in the record at 1945, Well, folks, the discontinuity may have been overlooked by Hadley Center, CRU, NOAA and NASA and by the stadiums of IPCC peer reviewers, but it wasn’t overlooked […]
An interesting post by regular CA commenter David Smith at Anthony Watts on his results quantifying local microsite effects on a thermometer placed near a parking lot. Interesting to compare this with efforts of Jones, Parker, Peterson etc. to “prove” that site effects don’t matter.
Update: As noted in the comments below, GISS updated the GLB.Ts+dSST anomalies which show a large 0.67 degC value for March. This addition of March 2008 temperature data to the record caused a corresponding drop in annual average temperature for the years 1946 and 1903. According to GISS, 1946 is now colder than 1960 and […]
David Stockwell has an interesting post here on March 2008 temperatures, noting a divergence between NH and SH temperatures, with NH temperatures rebounding and SH temperatures continuing to cool. http://landshape.org/enm/march-2008-temperatures/
UC observed a couple of days ago that Hadley Center, authors of the pre-eminent temperature series, have suddenly identified an “error” in how they presented temperature data. For presentation of their smoothed temperature series in a part-year situation, their methodology calculated the average of months then available and used that to estimate the current year’s […]
During the past few days, I’ve been assessing the GHCN-Daily dataset, which is a very large data set and plan to do a number of posts on this topic, including a description of the data set. It turns out that literally hundreds of stations that expire around 1989 or 1990 in the NASA data set […]
On Feb 20, 2008, I wrote a post reviewing the provenance of various versions of an individual USHCN station (Lampasas), observing that a much more recent version was available at NOAA than at CDIAC) (the source used by NASA. I made the following recommendation: Regardless of whether these station histories “matter”, surely there’s no harm […]
Climate Audit 