caa a22 4500 60547317X CHVBK 20210128100341.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s00382-014-2273-7 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2273-7 Drought variability in eastern Mongolian Plateau and its linkages to the large-scale climate forcing [Elektronische Daten] [Guang Bao, Yu Liu, Na Liu, Hans Linderholm] A robust regional tree-ring chronology with a span of 1819-2009 was developed for the Hulun Buir steppe, China, a region in the eastern edge of the Mongolian Plateau. This chronology exhibited significantly positive correlation with precipitation in June, and negative correlations with temperature from April to September except for May. Highest correlation was found between tree rings and the average April-August standardized precipitation evapotranspiration index (SPEI), suggesting that pines growth strongly respond to the seasonal drought conditions. Accordingly, the average April-August SPEI reconstruction was performed for the period 1854-2009, explaining 45.5% variance of the calibration period 1953-2009. New reconstruction shows some synchrony with regional-scale events found in other reconstructions to the west Mongolian Plateau. The recent droughts in late 1990 to present are not unusual in the context of the past several centuries. Spectrum analyses suggested that the average April-August SPEI variations, especially severe droughts in the late 1870s-early 1880s, 1920s and since the late 1990s could be associated with large-scale climate forcing, such as the El Niño-Southern Oscillation, the Pacific Decadal Oscillation and the summer North Atlantic Oscillation. Significant teleconnections indicated drought variability during the past several centuries in eastern Mongolian Plateau existed close connections with large-scale synoptic features. Springer-Verlag Berlin Heidelberg, 2014 Tree rings nationallicence Regional drought nationallicence Eastern Mongolian Plateau nationallicence Teleconnection nationallicence Pinus sylvestris var. mongolica nationallicence Bao Guang Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province, Baoji University of Arts and Sciences, 721013, Baoji, Shaanxi, China aut Liu Yu State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, 710075, Xi'an, China aut Liu Na Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province, Baoji University of Arts and Sciences, 721013, Baoji, Shaanxi, China aut Linderholm Hans Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Box 460, 405 30, Gothenburg, Sweden aut Climate Dynamics Springer Berlin Heidelberg 44/3-4(2015-02-01), 717-733 0930-7575 44:3-4<717 2015 44 382 https://doi.org/10.1007/s00382-014-2273-7 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/s00382-014-2273-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bao Guang Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province, Baoji University of Arts and Sciences, 721013, Baoji, Shaanxi, China aut NATIONALLICENCE 700 1- Liu Yu State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, 710075, Xi'an, China aut NATIONALLICENCE 700 1- Liu Na Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province, Baoji University of Arts and Sciences, 721013, Baoji, Shaanxi, China aut NATIONALLICENCE 700 1- Linderholm Hans Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Box 460, 405 30, Gothenburg, Sweden aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 44/3-4(2015-02-01), 717-733 0930-7575 44:3-4<717 2015 44 382