| Title | Trends in recent temperature and radial tree growth spanning 2000 years across northwest Eurasia |
| Author | Briffa, K.R.; Shishov, V.V.; Melvin, T.M.; Vaganov, E.A.; Grudd, H.; Hantemirov, R.M.; Eronen, M.; Naurzbaev, M.M. |
| Author Affil | Briffa, K.R., University of East Anglia, Climatic Research Unit, Norwich, United Kingdom. Other: University of Guelph, Canada; Russian Academy of Sciences, Russian Federation; Siberian Federal University, Russian Federation; Stockholm University, Sweden; University of Helsinki, Finland |
| Source | The boreal forest and global change, edited by K.E. Ruckstuhl, E.A. Johnson and K. Miyanishi. Philosophical Transactions - Royal Society of London. Biological Sciences, 363(1501), p.2271-2284, . Publisher: Royal Society of London, London, United Kingdom. ISSN: 0962-8436. ISBN: 978-0-85403-692- 9 |
| Publication Date | July 12, 2008 |
| Notes | In English. Includes 2 appendices. 42 refs. GeoRef Acc. No: 287732 |
| Index Terms | climate; climatic change; geochronology; temperature; Eurasia; Finland-- Lapland; Russia--Taymyr Peninsula; Russia-- Yamal; Asia; Cenozoic; climate change; Commonwealth of Independent States; Europe; Finland; Holocene; Krasnoyarsk Russian Federation; Lapland; Lapland Finland; Quaternary; Russian Federation; Scandinavia; Taymyr Dolgan-Nenets Russian Federation; Taymyr Peninsula; tree rings; Tyumen Russian Federation; upper Holocene; Western Europe; Yamal; Yamal-Nenets Russian Federation |
| Abstract | This paper describes variability in trends of annual tree growth at several locations in the high latitudes of Eurasia, providing a wide regional comparison over a 2000-year period. The study focuses on the nature of local and widespread tree-growth responses to recent warming seen in instrumental observations, available in northern regions for periods ranging from decades to a century. Instrumental temperature data demonstrate differences in seasonal scale of Eurasian warming and the complexity and spatial diversity of tree- growing-season trends in recent decades. A set of long tree-ring chronologies provides empirical evidence of association between inter-annual tree growth and local, primarily summer, temperature variability at .each location. These data show no evidence of a recent breakdown in this association as has been found at other high-latitude Northern Hemisphere locations. Using Kendall's concordance, we quantify the time-dependent relationship between growth trends of the long chronologies as a group. This provides strong evidence that the extent of recent widespread warming across northwest Eurasia, with respect to 100- to 200-year trends, is unprecedented in the last 2000 years. An equivalent analysis of simulated temperatures using the HadCM3 model fails to show a similar increase in concordance expected as a consequence of anthropogenic forcing. |
| URL | http://hdl.handle.net/10.1098/rstb.2007.2199 |
| Publication Type | journal article |
| Record ID | 63000434 |