气候变化领域集成服务门户(CCPortal): A Modeling Study of the Tripole Pattern of East China Precipitation Over the Past 425 ka

CCPortal

DOI	10.1029/2020JD033513
	A Modeling Study of the Tripole Pattern of East China Precipitation Over the Past 425 ka
	Dai G.; Zhang Z.; Otterå O.H.; Langebroek P.M.; Yan Q.; Zhang R.
发表日期	2021
ISSN	2169897X
卷号	126 期号:7
英文摘要	The traditional paleoclimatological view suggests that monsoonal China was overall wetter when the East Asian summer monsoon (EASM) was strong. However, this view is at odds with the understanding of modern climate, which demonstrates an analogous “tripole precipitation pattern” in monsoonal China. Little is known about the spatial pattern of paleo-precipitation in monsoonal China, particularly during the past glacial-interglacial cycles. Here, we provide evidence for a potential tripole precipitation pattern in monsoonal China over the past 425 ka using climate modeling, and compare the results with paleoclimate records available from China. Our simulations illustrate that more (less) precipitation in North China and South China, and less (more) precipitation in the Central-East China during strong (weak) EASM periods associated with high (low) boreal summer insolation. Our results agree with the present understanding of modern East Asian climate, and furthermore confirm that the boreal summer insolation is the dominant forcing for the intensity of EASM and the response of subtropical high pressures is fundamental in modulating the precipitation pattern in monsoonal China on orbital timescales. This temporal and spatial variability of precipitation, as revealed in our simulations, shows the potential high complexities in hydroclimatic conditions in monsoonal China throughout the past glacial-interglacial cycles. Nevertheless, whether the tripole precipitation pattern in monsoonal China over the past 425 ka is robust enough still should be tested, preferable by taking advantage of existing and new well-dated and explicit indicative precipitation archives in Central-East China. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	East China; glacial-interglacial cycles; precipitation; tripole pattern
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185360
作者单位	Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan, China; Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; Center for Early Sapiens Behaviour, Bergen, Norway; Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Dai G.,Zhang Z.,Otterå O.H.,et al. A Modeling Study of the Tripole Pattern of East China Precipitation Over the Past 425 ka[J],2021,126(7).
APA	Dai G.,Zhang Z.,Otterå O.H.,Langebroek P.M.,Yan Q.,&Zhang R..(2021).A Modeling Study of the Tripole Pattern of East China Precipitation Over the Past 425 ka.Journal of Geophysical Research: Atmospheres,126(7).
MLA	Dai G.,et al."A Modeling Study of the Tripole Pattern of East China Precipitation Over the Past 425 ka".Journal of Geophysical Research: Atmospheres 126.7(2021).