Model-based orbital-scale precipitation delta O-18 variations and distinct mechanisms in Asian monsoon and arid regions
文献类型：期刊论文
| 作者 | Liu, Xiaodong1,3; Xie, Xiaoxun1; Guo, Zhengtang2,3; Yin, Zhi-Yong4; Chen, Guangshan1 |
| 刊名 | NATIONAL SCIENCE REVIEW
 |
| 出版日期 | 2022-08-30 |
| 页码 | 18 |
| 关键词 | orbital scale precipitation delta O-18 transient simulation Asian monsoon arid region |
| ISSN号 | 2095-5138 |
| DOI | 10.1093/nsr/nwac182 |
| 英文摘要 | A 300,000-year transient isotope-enabled simulation revealed the regional differences and causes of the orbital-scale precipitation isotope variations in arid Central Asia, monsoonal South Asia and East Asia. The past Asian precipitation delta O-18 (delta O-18(p)) records from stalagmites and other deposits have shown significant orbital-scale variations, but their climatic implications and regional differences are still not fully understood. This study, as the first attempt of a 300-kyr transient stable isotope-enabled simulation, investigated the characteristics and mechanisms of the orbital-scale delta O-18(p) variations in three representative regions of Asia: arid Central Asia (CA), monsoonal South Asia (SA) and monsoonal East Asia (EA). The modelling results showed that the variations in the CA, SA and EA annual delta O-18(p) exhibited significant but asynchronous 23-kyr precession cycles. Further analyses revealed that although the precession-induced insolation variation was the ultimate cause of the delta O-18(p) variation in all three regions, the dominant mechanisms and the involved physical processes were distinct among them. For the CA region, the rainy-season (November-March) temperature effect and water vapour transport by the westerly circulation were identified as the key precession-scale processes linking the October-February boreal mid-latitude insolation to the rainy-season or annual delta O-18(p). In the SA region, the rainy-season (June-September) precipitation amount effect and upstream depletion of the monsoonal water vapour delta O-18 served as the main mechanisms linking the rainy-season or annual delta O-18(p) to the April-July insolation variation at the precession scale. For the EA region, however, the precession-scale annual delta O-18(p) was mainly controlled by the late-monsoon (August-September) and pre-monsoon (April-May) water vapour transport patterns, which were driven by the July-August insolation and the global ice volume, respectively. These results suggest that the climatic implications of the orbital-scale Asia delta O-18(p) variations are sensitive to their geographic locations as determined by the combined effects of insolation and regional circulation patterns associated with the respective rainy seasons. This study provides new insights into understanding the regional differences and formation mechanisms of the Asian orbital-scale delta O-18(p) variations. |
| WOS关键词 | STABLE-ISOTOPE VARIATIONS ; OXYGEN-ISOTOPE ; ATMOSPHERIC CONTROLS ; CIRCULATION MODEL ; WATER ISOTOPES ; EAST-ASIA ; SUMMER ; CLIMATE ; RECORDS ; PALEOCLIMATE |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40030100] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41991254] ; National Natural Science Foundation of China[41690115] ; National Natural Science Foundation of China[42105049] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000868770900001 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/107805]  |
| 专题 | 地质与地球物理研究所_中国科学院新生代地质与环境重点实验室 |
| 通讯作者 | Liu, Xiaodong |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ San Diego, Dept Environm & Ocean Sci, San Diego, CA 92110 USA |
| 推荐引用方式 GB/T 7714 | Liu, Xiaodong,Xie, Xiaoxun,Guo, Zhengtang,et al. Model-based orbital-scale precipitation delta O-18 variations and distinct mechanisms in Asian monsoon and arid regions[J]. NATIONAL SCIENCE REVIEW,2022:18. |
| APA | Liu, Xiaodong,Xie, Xiaoxun,Guo, Zhengtang,Yin, Zhi-Yong,&Chen, Guangshan.(2022).Model-based orbital-scale precipitation delta O-18 variations and distinct mechanisms in Asian monsoon and arid regions.NATIONAL SCIENCE REVIEW,18. |
| MLA | Liu, Xiaodong,et al."Model-based orbital-scale precipitation delta O-18 variations and distinct mechanisms in Asian monsoon and arid regions".NATIONAL SCIENCE REVIEW (2022):18. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。