Today’s article is about one of the D’Arrigo et al 2006 datasets. D’Arrigo et al 2006, then under submission, had been cited in drafts of the IPCC Fourth Assessment Report. I had been accepted as an IPCC reviewer and, as an IPCC reviewer, I asked IPCC to make the data available to me or to […]
MBH98 used three Jacoby tree ring chronologies from Alaska: Four Twelve (ak031) – discussed here, Arrigetch (ak032) and Sheenjek (ak033). Sheenjek will be discussed in this article. In our compilation of MBH98 in 2003, we observed that the Sheenjek chronology archived at NOAA Paleo was not the same as the “grey” version used in MBH98. […]
We’ve long discussed the bias imparted by ex post selection of data depending on whether it went up in the 20th century. Likening such after-the-fact selection to a drug study carried out only on survivors. The Jacoby and d’Arrigo 1989 network was a classic example: the original article reported that they had sampled 36 northern treeline […]
One of the longest standing Climate Audit issues with paleoclimate reconstructions is ex post decisions on inclusion/exclusion of data, of which ex post decisions on inclusion/exclusion of sites/data in “regional [treering] chronologies” is one important family. This was the issue in the original Yamal controversy, in response to which Briffa stated that they “would never select or manipulate […]
Schmidt’s recent post on Yamal advocated the following “conspiracy theory”: McIntyre got the erroneous idea that studies were being done, but were being suppressed if they showed something ‘inconvenient’. This is of course a classic conspiracy theory and one that can’t be easily disproved. Accusation: you did something and then hid it. Response: No I […]
In 2004, prior to starting Climate Audit, I tried to get data from both Gordon Jacoby and Tom Crowley – neither experience being very pleasant. Climategate-2 emails provide an interest vignette in which Crowley got very frustrated trying to get data from Jacoby in 2008.
A CA reader sent me an email, noting the following entry in minutes of a meeting. M Loso inquired about Lonnie Thompson’s ice core data. These data are not presently available but will be investigated by Caspar. This comment is minuted in a meeting of PIs leading up to Kaufman et al 2009 – a […]
I’ve been re-visiting some proxy data; I noted last summer that Rob Wilson had archived a considerable amount of B.C. data in Aug 2007 and noticed that he subsequently archived the data versions as used in Wilson et al 2007 at NCDC here in Sept 2007. (Not all of Rob’s data is archived as he […]
Jacoby is a key player on the Hockey Team. Jacoby and d’Arrigo have received nearly $8 million from the National Science Foundation (collated from public NSF records)- see here ; in addition, they have received an undisclosed amount of funding from other public agencies (collated from publication references). As far as I’m concerned, US federal […]
I might as well illustrate real-time frustrations in dealing with the Hockey Team. I’ve written back on Jacoby’s stonewalling to Climatic Change (who have been trying and who at least got a refusal from Jacoby) as follows.
Climate Audit 