caa a22 4500 605471827 CHVBK 20210128100335.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00382-014-2386-z doi (NATIONALLICENCE)springer-10.1007/s00382-014-2386-z Unprecedented recent warming rate and temperature variability over the east Tibetan Plateau inferred from Alpine treeline dendrochronology [Elektronische Daten] [Chunming Shi, Valérie Masson-Delmotte, Valérie Daux, Zongshan Li, Matthieu Carré, John Moore] Despite instrumental records showing recent large temperature rises on the Tibetan Plateau (TP), only a few tree-ring temperature reconstructions do capture this warming trend. Here, we sampled 260 trees from seven Alpine treeline locations across the southeast TP. Standardized tree-ring width chronologies of Abies squamata and Sabina squamat were produced following Regional Curve Standardization detrending. The leading principal component of these records is well correlated with the regional summer (JJA) minimum temperature (MinT) (R2=0.47, P<0.001, 1953-2009). Hence we produce a regional summer MinT reconstruction spanning the last 212years. This reconstruction reveals a long-term persistent warming trend, starting in the 1820s, at a rate of 0.45±0.09°C/century (1820-2009). This trend is also detected since the 1820s in the Asian summer MinT reconstruction produced by the PAGES 2K project, with a very close warming rate (0.43±0.08°C/century, 1820-1989). Our record also displays an enhanced multi-decadal variability since the mid-twentieth century. The 1990s-2000s are the warmest of our whole record, due to the superposition of the gradual warming trend and decadal variability during this interval. The strongest decadal cooling occurs during the 1950s and the largest warming trend during the 1970s. The magnitude of warming from 1973 to 2003 was larger than the total warming trend from 1820s to 2009. Extreme events are also more frequent since 1950. The pattern of multi-decadal variability has similarities with the Atlantic multi-decadal oscillation, suggesting common causality. CMIP5 historical simulations fail to capture both the magnitude and timing of this multi-decadal variability. The ensemble CMIP5 average produces a steady warming trend starting in the 1970s, which only accounts for about 60% of the observed warming trend during this period. We conclude that TP summer temperature could reflect a climate response to increased greenhouse gas concentrations, however modulated by multi-decadal variations common with the Atlantic sector. Springer-Verlag Berlin Heidelberg, 2014 Shi Chunming State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, 100875, Beijing, China aut Masson-Delmotte Valérie Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS-UVSQ 8212, Institut Pierre Simon Laplace, Gif-sur-Yvette, France aut Daux Valérie Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS-UVSQ 8212, Institut Pierre Simon Laplace, Gif-sur-Yvette, France aut Li Zongshan State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China aut Carré Matthieu UM2-CNRS-IRD, Institut des Sciences de l'Evolution de Montpellier, Université Montpellier 2, CC065, Pl. Eugène Bataillon, 34095, Montpellier, France aut Moore John State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, 100875, Beijing, China aut Climate Dynamics Springer Berlin Heidelberg 45/5-6(2015-09-01), 1367-1380 0930-7575 45:5-6<1367 2015 45 382 https://doi.org/10.1007/s00382-014-2386-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2386-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shi Chunming State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, 100875, Beijing, China aut NATIONALLICENCE 700 1- Masson-Delmotte Valérie Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS-UVSQ 8212, Institut Pierre Simon Laplace, Gif-sur-Yvette, France aut NATIONALLICENCE 700 1- Daux Valérie Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS-UVSQ 8212, Institut Pierre Simon Laplace, Gif-sur-Yvette, France aut NATIONALLICENCE 700 1- Li Zongshan State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, China aut NATIONALLICENCE 700 1- Carré Matthieu UM2-CNRS-IRD, Institut des Sciences de l'Evolution de Montpellier, Université Montpellier 2, CC065, Pl. Eugène Bataillon, 34095, Montpellier, France aut NATIONALLICENCE 700 1- Moore John State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, 100875, Beijing, China aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/5-6(2015-09-01), 1367-1380 0930-7575 45:5-6<1367 2015 45 382