Let no one say that I don’t give credit where credit is due. Keith Briffa, yes Keith Briffa, has archived 13 tree ring site chronologies at WDCP: it’s only 17 years since publication and 22-24 years since collection, but who’s counting?
Let’s talk first about Alberto Mangini, who published Mangini et al. , Reconstruction of temperature in the Central Alps during the past 2000 yr from a d18O stalagmite record, Earth and Planetary Science Letters, Vol. 235, Issues 3-4, Pages 741-751, 15 July 2005. doi:10.1016/j.epsl.2005.05.010 . If you go here, you see the data nicely archived at WDCP. Now that it’s archived, Mangini doesn’t have to worry about answering inquiries, losing the data, arguing with Canadians. It doesn’t seem so hard.
And here’s a graph of year (CE) versus reconstructed temperature from Mangini et al, (2005) taken direct from the archive above.
For another extreme: Briffa, K.R., P. D. Jones, J.R. Pilcher and M.K.Hughes , Reconstructing summer tempertatures in northern Fennoscandinavia back to AD1700 using tree ring data from Scots pine, Arctic and Alpine Research 20, 385-394, reported on the following Finnish sites: Sompio, Riukuselka, Morgammaras, Suojanpera, Jurmarova, Pyhaturunturi, Pallasmaja, Pisa and Pyhan Hakin; the following Norwegian sites: Hurdal, Jondalen, Lofoten and Steigen; and the following Swedish sites: Muddus, Ostersund and Arosjakk. Sampling was done in 1981 and 1983.
Earlier in 2005, Briffa archived all 9 of the Finnish sites (finl058-finl066); 3 Norwegian sites – 2 of which (Hurdal, Jondalen) overlapped with the above listing; and one Swedish site (Muddus South) which presumably overlaps with the above. Lofoten (norw001) and Arosjakk (swed009) can be identified as already being archived. Steigen and Ostersund appear to be still outstanding; Visdalen appears not to have been reported in the earlier publication.
I guess that Briffa, Jones, Hughes and Pilcher thought that 17 years after publication and 22-24 years of exclusive use were both "reasonable".