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DOI	10.1002/joc.7122
	What induces the interdecadal shift of the dipole patterns of summer precipitation trends over the Tibetan Plateau?
	Liu, Yong; Chen, Huopo; Li, Hua; Zhang, Guoqing; Wang, Huijun
通讯作者	Chen, HP (通讯作者)
发表日期	2021
ISSN	0899-8418
EISSN	1097-0088
起始页码	5159
结束页码	5177
卷号	41 期号:11
英文摘要	Precipitation on the Tibetan Plateau (TP) exert great impacts on the energy, water cycle, and regional ecosystem. But due to the wide differences in climate regimes and complicated topography, TP precipitation is characterized as greater spatial diversity and lower confidence of temporal tendency. Based on the precipitation datasets from in situ observations, reanalysis, and satellites, this study identifies the interdecadal shift of the summer precipitation trends in the southern and northern TP, which corresponds well with the remarkable changes of TP lakes area in recent years. The statistical results indicate that the TP summer precipitation has experienced an interdecadal transition in the late 1990s, with precipitation increasing and then decreasing in the southern TP, and decreasing and then increasing in the northern TP. Further analyses suggest that the changes in moisture budget and convection activities play an important role in the interdecadal variations of precipitation in the northern and southern TP, respectively. More specifically, the variations in the southern TP are contributed largely by the persistent weakening sensible heat source, which can depress the ascending motion and hinder the northward moisture transport in the southern TP. While in the northern TP, both observations and model sensitivity experiments indicate that the co-effect of the cold interdecadal Pacific oscillation (IPO) and warm Atlantic multidecadal oscillation (AMO) has profound impacts on the decadal shift of the net moisture budget in the northern TP. Specifically, the AMO can impact the Lake Baikal anticyclone through the anomalous wave propagation and then decrease the moisture output in the eastern TP. While the IPO can weaken the climatological westerlies and prompt the moisture to get stuck in the northern TP. Consequently, the variations in the net moisture budget can give rise to the decadal variations in summer precipitation in the northern TP.
英文关键词	interdecadal shift; summer precipitation; Tibetan Plateau
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000638306000001
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
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/260284
推荐引用方式 GB/T 7714	Liu, Yong,Chen, Huopo,Li, Hua,et al. What induces the interdecadal shift of the dipole patterns of summer precipitation trends over the Tibetan Plateau?[J]. 中国科学院青藏高原研究所,2021,41(11).
APA	Liu, Yong,Chen, Huopo,Li, Hua,Zhang, Guoqing,&Wang, Huijun.(2021).What induces the interdecadal shift of the dipole patterns of summer precipitation trends over the Tibetan Plateau?.INTERNATIONAL JOURNAL OF CLIMATOLOGY,41(11).
MLA	Liu, Yong,et al."What induces the interdecadal shift of the dipole patterns of summer precipitation trends over the Tibetan Plateau?".INTERNATIONAL JOURNAL OF CLIMATOLOGY 41.11(2021).