Circulation effect: response of precipitation delta O-18 to the ENSO cycle in monsoon regions of China
文献类型：期刊论文
| 作者 | Tan, Ming |
| 刊名 | CLIMATE DYNAMICS
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 42期号:3-4页码:1067-1077 |
| 关键词 | Circulation effect Precipitation delta O-18 ENSO cycle Trade wind Monsoon regions of China |
| ISSN号 | 0930-7575 |
| DOI | 10.1007/s00382-013-1732-x |
| 英文摘要 | Inter-annual variation in the ratio of O-18 to O-16 of precipitation (delta O-18(p)) in the monsoon regions of China (MRC, area approximately east of 100A degrees E) has not yet been fully analyzed. Based on an analysis of the relationships between the time series of amount-weighted mean annual delta O-18 in precipitation (delta O-18(w)) and meteorological variables such as temperature, precipitation as well as atmospheric/oceanic circulation indices, it is recognized that the El Nio-Southern Oscillation (ENSO) cycle appears to be the dominant control on the inter-annual variation in delta O-18(p) in the MRC. Further analysis shows that the trade wind plays a role in governing delta O-18(w) through affecting the intensity of the different summer monsoon circulations which are closely linked to the weakening (weaker than normal) and strengthening (stronger than normal) of the trade wind and gives the delta O-18(w) different values at or over inter-annual timescales. The southwest monsoon (SWM) drives long-distance transport of water vapor from Indian Ocean to the MRC, and along this pathway increasing rainout leads to more negative delta O-18(w) via Rayleigh distillation processes. In contrast, the southeast monsoon (SEM), which is consistent with the changes in the strength of the West Pacific subtropical high, drives short-distance water vapor transport from the West Pacific Ocean to the MRC and leads to less negative delta O-18(w). Therefore, the delta O-18(w) value directly reflects the differences in influence between the SWM, which is strong when the SE trade wind is strong, and the SEM, which is strong when the SE trade wind is weak. In addition, the South China Sea Monsoon also transports local water vapor as well as plays a role in achieving the synchronization between the delta O-18(w) and ENSO. The author thus terms the delta O-18(p) rhythm in the MRC the "circulation effect". In turn, the delta O-18(p) variation in the MRC has the potential to provide information on atmospheric circulation and the signal of delta O-18(p) recorded in natural archives can then be used to deduce a long-term behavior of the tropical climate system. |
| 语种 | 英语 |
| WOS记录号 | WOS:000330731300031 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85480]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Tan, Ming |
| 作者单位 | Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Ming. Circulation effect: response of precipitation delta O-18 to the ENSO cycle in monsoon regions of China[J]. CLIMATE DYNAMICS,2014,42(3-4):1067-1077. |
| APA | Tan, Ming.(2014).Circulation effect: response of precipitation delta O-18 to the ENSO cycle in monsoon regions of China.CLIMATE DYNAMICS,42(3-4),1067-1077. |
| MLA | Tan, Ming."Circulation effect: response of precipitation delta O-18 to the ENSO cycle in monsoon regions of China".CLIMATE DYNAMICS 42.3-4(2014):1067-1077. |
入库方式： OAI收割
来源：地质与地球物理研究所
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