气候变化领域集成服务门户(CCPortal): Mid-Pliocene global land monsoon from PlioMIP1 simulations

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DOI	10.1016/j.palaeo.2018.06.027
	Mid-Pliocene global land monsoon from PlioMIP1 simulations
	Li, Xiangyu; Jiang, Dabang; Tian, Zhiping; Yang, Yibo
通讯作者	Jiang, DB (通讯作者)
发表日期	2018
ISSN	0031-0182
EISSN	1872-616X
起始页码	56
结束页码	70
卷号	512
英文摘要	The mid-Piacenzian (Pliocene) warm period (approximately 3.3-3.0 Ma) monsoon not only provides us with a useful insight into the future monsoon under a warming scenario with high atmospheric CO2 concentration but is also hypothesized to play a key role in climate feedback through impact on the carbon cycle on a geological timescale. The monsoon evolution over time is one key to test this hypothesis. In this sense, we examine the mid-Piacenzian global land monsoon area (GLMA), precipitation (GLMP), and GLMP intensity (GLMPI) using all available model data from the Pliocene Model Intercomparison Project phase 1 (PlioMIP1). Relative to the pre-industrial period, both the GLMA and GLMP increase in the mid-Piacenzian and by an average of 7.3% and 5.8%, respectively. On a large scale, the increased GLMP comes mainly from northern Africa, Asia, and northern Australia. Quantitatively, it is the variation of GLMA, not of GLMPI, that makes a major contribution to the GLMP change. Further analysis reveals that anomalous inland water vapor transportation due to the reduced large-scale meridional thermal contrast in the mid-to-upper troposphere, together with the variation of vertical moisture advection and evaporation, explains most of the global land monsoon changes. A model-data comparison shows that the simulated monsoon precipitation variations are roughly consistent with the reconstructions in northern Africa, Asia, northern Australia, Central America, and eastern South America. Moreover, the intensified mid-Piacenzian Asian monsoon, which is supported by both simulations and reconstructions, or an overall intensified global land monsoon is hypothesized to contribute to the lowering of atmospheric CO2 concentration and the subsequent onset of the sustained major Northern Hemisphere glaciation.
关键词	CHINESE LOESS PLATEAU WESTERN QAIDAM BASIN GENERAL-CIRCULATION MODEL ORGANIC-CARBON BURIAL ASIAN SUMMER MONSOON EXPERIMENTAL-DESIGN BOUNDARY-CONDITIONS EOLIAN DEPOSITION WARM PERIOD NEOTROPICAL PALEOBOTANY
英文关键词	Mid-Piacenzian; Pliocene; Carbon cycle; Climate feedback; Major Northern Hemisphere glaciation; Reconstruction
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000454973500006
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259170
推荐引用方式 GB/T 7714	Li, Xiangyu,Jiang, Dabang,Tian, Zhiping,et al. Mid-Pliocene global land monsoon from PlioMIP1 simulations[J]. 中国科学院青藏高原研究所,2018,512.
APA	Li, Xiangyu,Jiang, Dabang,Tian, Zhiping,&Yang, Yibo.(2018).Mid-Pliocene global land monsoon from PlioMIP1 simulations.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,512.
MLA	Li, Xiangyu,et al."Mid-Pliocene global land monsoon from PlioMIP1 simulations".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 512(2018).