干旱区生态环境知识资源中心(Arid): Palynological Evidence From the Altai Mountains for the Links Between the Asian Westerly Jet Streams and Monsoon System During the Holocene

Arid

DOI	10.1029/2023JD039028
	Palynological Evidence From the Altai Mountains for the Links Between the Asian Westerly Jet Streams and Monsoon System During the Holocene
	Wu, J.; Zhu, Z.; Li, Q.; Su, Y.; Xue, H.; Shi, F.; Rioual, P.; Chu, G.
通讯作者	Wu, J ; Chu, G
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2023
卷号	128 期号:20
英文摘要	The Asian westerly jet streams in the upper troposphere play a pivotal role in shaping precipitation patterns, sustaining the diverse but fragile ecosystems in arid Central Asia. Despite their significance, the evolution history of these jet streams and their synergistic effects with the monsoon systems on regional climate change in Asia during the Holocene remain poorly understood. To address this gap, we present a continuous pollen record since 8.6 cal ka BP from Lake Shuang in the Altai Mountains. The first two principal components of the pollen data are employed to track regional changes in vegetation, summer moisture, and winter temperature. Meanwhile, the pollen data and the TraCE-21ka simulation results were compared to reveal the dynamic mechanism of regional climate change. Results indicate a humid phase spanning the interval similar to 8 to 5 cal ka BP in this region, which broadly coincides with the intensification of the Indian Summer Monsoon. This temporal correlation is potentially linked to the poleward shift of the Asian jet, as suggested by simulation results. Furthermore, our data show a consistent winter warming trend throughout the Holocene, indicated by changes in the dominant tree pollen taxa and a reduction of cold-resistant-taxa. This trend is associated with the weakening of the East Asian Winter Monsoon, influenced by increasing winter solar insolation and atmospheric CO2 concentration. Overall, our research provides strong paleoclimatological evidence highlighting the interconnected meteorological roles of the Asian jet and monsoon systems in shaping regional climates.
英文关键词	Asian westerly jet streams Indian summer monsoon East Asian winter monsoon Holocene pollen analysis arid region
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001083251500001
WOS关键词	ARID CENTRAL-ASIA ; INDIAN MONSOON ; MOISTURE EVOLUTION ; WINTER MONSOON ; EAST-ASIA ; CLIMATE ; VEGETATION ; XINJIANG ; POLLEN ; LAKE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397355
推荐引用方式 GB/T 7714	Wu, J.,Zhu, Z.,Li, Q.,et al. Palynological Evidence From the Altai Mountains for the Links Between the Asian Westerly Jet Streams and Monsoon System During the Holocene[J],2023,128(20).
APA	Wu, J..,Zhu, Z..,Li, Q..,Su, Y..,Xue, H..,...&Chu, G..(2023).Palynological Evidence From the Altai Mountains for the Links Between the Asian Westerly Jet Streams and Monsoon System During the Holocene.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,128(20).
MLA	Wu, J.,et al."Palynological Evidence From the Altai Mountains for the Links Between the Asian Westerly Jet Streams and Monsoon System During the Holocene".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 128.20(2023).