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| Study on the "winter persistence barrier" of Indian Ocean dipole events using observation data and CMIP5 model outputs | |
| Feng, Rong1,2; Mu, Mu3; Duan, Wansuo1; Duan, WS (reprint author), Chinese Acad Sci, LASG, Inst Atmospher Phys, Beijing 100029, Peoples R China. | |
| 2014-11-01 | |
| 发表期刊 | THEORETICAL AND APPLIED CLIMATOLOGY
 |
| 卷号 | 118期号:3页码:523-534 |
| 文章类型 | Article |
| 摘要 | This study investigates the persistence barrier phenomenon associated with positive Indian Ocean dipole (IOD) events during the various phases of its development. The results derived from three observational datasets (the Simple Ocean Data Assimilation, International Comprehensive Ocean-Atmosphere Data Set, and Extended Reconstructed Sea Surface Temperature) indicate that significant winter persistence barriers (WPBs) occur during IOD events, both in its growing and decaying phases. The simulation skill of the 14 models within the Coupled Model Intercomparison Project Phase 5 with respect to persistence barriers was also evaluated and compared with observational data. The results show that although most models were able to simulate the WPB reasonably well during the growing phase, only five models could capture the appropriate WPB during the decaying phase. Further analysis demonstrates that the zonal equatorial gradient of climatological sea surface temperature (SST) and zonal sea surface winds at the equator in the Indian Ocean are very weak in winter, which indicates that the coupling between ocean and atmosphere is weakest in winter and encourages a rapid variation of IOD events and a swift reduction of persistence, favoring the occurrence of WPBs; furthermore, a deep climatological thermocline in winter implies that the subsurface water temperature cannot influence SST readily, and the memory of the subsurface temperature cannot help SST to recover from the loss of persistence during this period, leading to the occurrence of WPBs. In addition, an analysis of the climatological conditions in the outputs from the 14 models shows that those models that can (cannot) capture the winter climatological conditions frequently simulate the WPBs appropriately (poorly). This confirms that the occurrence of the WPB for IOD events may be closely related to particular winter climatological conditions, indicating that the WPB is an inherent property of IOD events. |
| 学科领域 | Meteorology & Atmospheric Sciences |
| DOI | 10.1007/s00704-013-1083-x |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344813300013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/23971 |
| 专题 | 海洋环流与波动重点实验室 |
| 通讯作者 | Duan, WS (reprint author), Chinese Acad Sci, LASG, Inst Atmospher Phys, Beijing 100029, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, LASG, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Ocean Circulat & Wave, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Rong,Mu, Mu,Duan, Wansuo,et al. Study on the "winter persistence barrier" of Indian Ocean dipole events using observation data and CMIP5 model outputs[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2014,118(3):523-534. |
| APA | Feng, Rong,Mu, Mu,Duan, Wansuo,&Duan, WS .(2014).Study on the "winter persistence barrier" of Indian Ocean dipole events using observation data and CMIP5 model outputs.THEORETICAL AND APPLIED CLIMATOLOGY,118(3),523-534. |
| MLA | Feng, Rong,et al."Study on the "winter persistence barrier" of Indian Ocean dipole events using observation data and CMIP5 model outputs".THEORETICAL AND APPLIED CLIMATOLOGY 118.3(2014):523-534. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Study on the winter （3443KB） | 限制开放 | ODC PDDL | 浏览 | |||
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