气候变化领域集成服务门户(CCPortal): Juxtaposition of Western Pacific Subtropical High on Asian Summer Monsoon Shapes Subtropical East Asian Precipitation

CCPortal

DOI	10.1029/2019GL084705
	Juxtaposition of Western Pacific Subtropical High on Asian Summer Monsoon Shapes Subtropical East Asian Precipitation
	Xu H.; Goldsmith Y.; Lan J.; Tan L.; Wang X.; Zhou X.; Cheng J.; Lang Y.; Liu C.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	Increasing lines of evidence question the homogenous response of Asian Summer Monsoon (ASM) precipitation patterns, requiring rethinking of the forcing mechanisms. Here we show a ~15,000-year quantitative precipitation history based on well-dated lake levels at Lake Chenghai, subtropical China. Lake levels and the inferred precipitation were high during the Bølling-Allerød, early and late Holocene, but low during the middle Holocene. The orbital scale precipitation trend is out of phase with boreal summer insolation, the later has been widely suggested as the driver of ASM precipitation. Lake Chenghai long-term lake levels are synchronous with trends in tropical Pacific sea surface temperatures, the related zonal sea surface temperature gradients, and interhemispheric temperature gradients. We propose that changes in either the interhemispheric or zonal Pacific temperature gradients modulate the intensity and location of the western Pacific subtropical high, which is juxtaposed on the ASM, leading to heterogeneous hydroclimatic conditions over subtropical East Asia. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric temperature; Atmospheric thermodynamics; Lakes; Oceanography; Submarine geophysics; Surface properties; Thermal gradients; Asian summer monsoons; Hydroclimatic conditions; Lake levels; Precipitation patterns; Sea surface temperature (SST); Sea Surface Temperature gradients; subtropical Asia; Western Pacific; Tropics; Allerod; Bolling; climate conditions; Holocene; hydrometeorology; lake level; monsoon; precipitation (climatology); sea surface temperature; subtropical region; summer; temperature gradient; Chenghai Lake; China; Pacific Ocean; Pacific Ocean (West); Yunnan
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170756
作者单位	Institute of Surface-Earth System Science, Tianjin University, Tianjin, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; Laboratory of Human Evolution and Archeological Science, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China; Nanjing University of Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Xu H.,Goldsmith Y.,Lan J.,et al. Juxtaposition of Western Pacific Subtropical High on Asian Summer Monsoon Shapes Subtropical East Asian Precipitation[J],2020,47(3).
APA	Xu H..,Goldsmith Y..,Lan J..,Tan L..,Wang X..,...&Liu C..(2020).Juxtaposition of Western Pacific Subtropical High on Asian Summer Monsoon Shapes Subtropical East Asian Precipitation.Geophysical Research Letters,47(3).
MLA	Xu H.,et al."Juxtaposition of Western Pacific Subtropical High on Asian Summer Monsoon Shapes Subtropical East Asian Precipitation".Geophysical Research Letters 47.3(2020).