Summer Cooling Driven by Large Volcanic Eruptions over the Tibetan Plateau

doi:10.1175/JCLI-D-17-0664.1

	Summer Cooling Driven by Large Volcanic Eruptions over the Tibetan Plateau
	Duan, Jianping 1; Li, Lun 2; Ma, Zhuguo ; Esper, Jan 3; Buentgen, Ulf 4; Xoplaki, Elena 5; Zhang, Dujuan 6; Wang, Lily 7; Yin, Hong 8; Luterbacher, Juerg 5,9
	2018
发表期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
卷号	31 期号:24 页码:9869-9879
摘要	Large volcanic eruptions may cause abrupt summer cooling over large parts of the globe. However, no comparable imprint has been found on the Tibetan Plateau (TP). Here, we introduce a 400-yr-long temperature-sensitive network of 17 tree-ring maximum latewood density sites from the TP that demonstrates that the effects of tropical eruptions on the TP are generally greater than those of extratropical eruptions. Moreover, we found that large tropical eruptions accompanied by subsequent El Nino events caused less summer cooling than those that occurred without El Nino association. Superposed epoch analysis (SEA) based on 27 events, including 14 tropical eruptions and 13 extratropical eruptions, shows that the summer cooling driven by extratropical eruptions is insignificant on the TP, while significant summer temperature decreases occur subsequent to tropical eruptions. Further analysis of the TP August-September temperature responses reveals a significant postvolcanic cooling only when no El Nino event occurred. However, there is no such cooling for all other situations, that is, tropical eruptions together with a subsequent El Nino event, as well as extratropical eruptions regardless of the occurrence of an El Nino event. The averaged August-September temperature deviation (T-dev) following 10 large tropical eruptions without a subsequent El Nino event is up to -0.48 degrees +/- 0.19 degrees C (with respect to the preceding 5-yr mean), whereas the temperature deviation following 4 large tropical eruptions with an El Nino association is approximately 0.23 degrees +/- 0.16 degrees C. These results indicate a mitigation effect of El Nino events on the TP temperature response to large tropical eruptions. The possible mechanism is that El Nino events can weaken the Indian summer monsoon with a subsequent decrease in rainfall and cooling effect, which may lead to a relatively high temperature on the TP, one of the regions affected by the Indian summer monsoon.
关键词	Climate variability
学科领域	Meteorology & Atmospheric Sciences
DOI	10.1175/JCLI-D-17-0664.1
收录类别	SCI
语种	英语
WOS关键词	RING MAXIMUM DENSITY ; TEMPERATURE RECONSTRUCTION ; NORTHERN-HEMISPHERE ; INDIAN MONSOON ; EUROPE ; VARIABILITY ; MOUNTAINS ; PATTERNS ; RIVER ; ENSO
WOS记录号	WOS:000450407600005
出版者	AMER METEOROLOGICAL SOC
文献子类	Article
出版地	BOSTON
EISSN	1520-0442
资助机构	National Key R&D Program of China [2016YFA0600404] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41471035, 41101043, 41405054] ; Alexander vonHumboldt FoundationAlexander von Humboldt Foundation ; Basic Scientific Research and Operation Foundation of CAMS [2016Y001] ; German Science Foundation (DFG) project AFICHEGerman Research Foundation (DFG) ; Belmont Forum
作者邮箱	duanjp@tea.ac.cn
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20404
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.Chinese Acad Meteorol Sci, Beijing, Peoples R China 4.Johannes Gutenberg Univ Mainz, Dept Geog, Mainz, Germany 5.Univ Cambridge, Dept Geog, Cambridge, England 6.Justus Liebig Univ Giessen, Dept Geog, Giessen, Germany 7.Shanxi Normal Univ, Dept Geog Sci, Linfen, Peoples R China 8.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 9.China Meteorol Adm, Natl Climate Ctr, Beijing, Peoples R China 10.Justus Liebig Univ Giessen, Ctr Int Dev & Environm Res, Giessen, Germany
推荐引用方式 GB/T 7714	Duan, Jianping,Li, Lun,Ma, Zhuguo,et al. Summer Cooling Driven by Large Volcanic Eruptions over the Tibetan Plateau[J]. JOURNAL OF CLIMATE,2018,31(24):9869-9879.
APA	Duan, Jianping.,Li, Lun.,Ma, Zhuguo.,Esper, Jan.,Buentgen, Ulf.,...&Luterbacher, Juerg.(2018).Summer Cooling Driven by Large Volcanic Eruptions over the Tibetan Plateau.JOURNAL OF CLIMATE,31(24),9869-9879.
MLA	Duan, Jianping,et al."Summer Cooling Driven by Large Volcanic Eruptions over the Tibetan Plateau".JOURNAL OF CLIMATE 31.24(2018):9869-9879.

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