Recent Changes for "Juckes et al. (2007)" - Climate Audit 101

Juckes et al. (2007)

jkearns — 2007-12-01 01:07:26

added description

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- Describe Juckes et al. (2007) here.	+ ''Juckes, M. N., Allen, M. R., Briffa, K. R., Esper, J., Hegerl, G. C., Moberg, A., Osborn, T. J., Weber, S. L., and Zorita, E.: Millennial temperature reconstruction intercomparison and evaluation, Clim. Past Discuss., 2, 1001-1049, 2006.'' + + Abstract + + There has been considerable recent interest in paleoclimate reconstructions of the temperature history of the last millennium. A wide variety of techniques have been used. The interrelation between the techniques is sometimes unclear, as different studies often use distinct data sources as well as distinct methodologies. Recent work is reviewed with an aim to clarifying the import of the different approaches. A range of proxy data collections used by different authors are passed through two reconstruction algorithms: firstly, inverse regression and, secondly, compositing followed by variance matching. It is found that the first method tends to give large weighting to a small number of proxies and that the second approach is more robust to varying proxy input. A reconstruction using 18 proxy records extending back to AD 1000 shows a maximum pre-industrial temperature of 0.25 K (relative to the 1866 to 1970 mean). The standard error on this estimate, based on the residual in the calibration period is 0.149 K. Two recent years (1998 and 2005) have exceeded the estimated pre-industrial maximum by more than 4 standard errors. + + Available [http://www.clim-past.net/3/591/2007/cp-3-591-2007.html here].

Juckes et al. (2007)

DaveDardinger — 2007-11-30 17:56:48

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	+ === Related Climate Audit posts ===
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- [[br]] - === ["Juckes et al. (2007)"] === - [http://www.climateaudit.org/?p=954 Juckes and the Rain in Maine ]; [http://www.climateaudit.org/?p=968 Juckes Review ]; [http://www.climateaudit.org/?p=2105 Hugues Goosse and the Unresponsiveness of Juckes ]	+ [http://www.climateaudit.org/?p=954 Juckes and the Rain in Maine ] + [http://www.climateaudit.org/?p=968 Juckes Review ] + [http://www.climateaudit.org/?p=2105 Hugues Goosse and the Unresponsiveness of Juckes ]

Juckes et al. (2007)

DaveDardinger — 2007-11-30 17:16:44

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	+ + Return to ["Multiproxy Temperature Reconstructions"]

Juckes et al. (2007)

DaveDardinger — 2007-11-30 16:54:58

Differences for Juckes et al. (2007)

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	+ Describe Juckes et al. (2007) here. + + + [[br]] + === ["Juckes et al. (2007)"] === + [http://www.climateaudit.org/?p=954 Juckes and the Rain in Maine ]; [http://www.climateaudit.org/?p=968 Juckes Review ]; [http://www.climateaudit.org/?p=2105 Hugues Goosse and the Unresponsiveness of Juckes ]