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Drought variability in eastern Mongolian Plateau and its linkages to the large-scale climate forcing
Bao, Guang1,2; Liu, Yu2,3; Liu, Na1,3; Linderholm, Hans W.4
Source PublicationCLIMATE DYNAMICS

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 Nio-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.

KeywordTree Rings Regional Drought Eastern Mongolian Plateau Teleconnection Pinus Sylvestris Var. Mongolica
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordAtlantic Multidecadal Oscillation ; Asian Summer Monsoon ; North China ; Tree-rings ; Inner-mongolia ; Surface-temperature ; Ocean Variability ; Severity Index ; United-states ; El-nino
Indexed BySCI
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000349406100007
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorBao, Guang
Affiliation1.Baoji Univ Arts & Sci, Key Lab Disaster Monitoring & Mech Simulating Sha, Baoji 721013, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China
3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Dept Environm Sci & Technol, Xian 710049, Peoples R China
4.Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, S-40530 Gothenburg, Sweden
Recommended Citation
GB/T 7714
Bao, Guang,Liu, Yu,Liu, Na,et al. Drought variability in eastern Mongolian Plateau and its linkages to the large-scale climate forcing[J]. CLIMATE DYNAMICS,2015,44(3-4):717-733.
APA Bao, Guang,Liu, Yu,Liu, Na,&Linderholm, Hans W..(2015).Drought variability in eastern Mongolian Plateau and its linkages to the large-scale climate forcing.CLIMATE DYNAMICS,44(3-4),717-733.
MLA Bao, Guang,et al."Drought variability in eastern Mongolian Plateau and its linkages to the large-scale climate forcing".CLIMATE DYNAMICS 44.3-4(2015):717-733.
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