Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| Strong modulations on the Bay of Bengal monsoon onset vortex by the first northward-propagating intra-seasonal oscillation | |
Li, Kuiping1,2,3; Li, Zhi2; Yang, Yang2 ; Xiang, Baoqiang4,5; Liu, Yanliang2; Yu, Weidong2
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| 2016-07-01 | |
| 发表期刊 | CLIMATE DYNAMICS
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| 卷号 | 47期号:1-2页码:107-115 |
| 文章类型 | Article |
| 摘要 | Monsoon onset vortex (OV) in the form of tropical cyclone is often observed in the pre-monsoon period and contributes to the subsequent abrupt establishment of summer monsoon over the Bay of Bengal (BoB). It is identified here that all historical OVs occurred during the convection-enhanced phase of the first northward-propagating intra-seasonal oscillation (FNISO). The individual contributions from the four large scale environmental fields associated with the intra-seasonal variations to the cyclone genesis are diagnosed with the aid of the genesis potential index. The significant moistening of mid-level atmosphere, which is embedded in the FNISO convection-enhanced phase, is shown to be the primary factor leading to the cyclone genesis. The water vapor budget analysis is further done to understand the governing process for the mid-level humidity increase. It is clearly seen that the vertical advection process, dominated by the anomalous vertical advection of the mean vertical water vapor gradient, plays the critical role. Hence the OVs are shown to be strongly modulated by FNISOs, both of which are important elements of the complex story of the BoB monsoon onset. |
| 关键词 | Monsoon Onset Vortex Tropical Cyclone Intra-seasonal Oscillation Bay Of Bengal Genesis Potential Index |
| DOI | 10.1007/s00382-015-2826-4 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000381227100008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/135884 |
| 专题 | 海洋环流与波动重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.SOA, Inst Oceanog 1, Ctr Ocean & Climate Res, Qingdao 266061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China 4.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA 5.Univ Corp Atmospheric Res, Boulder, CO USA |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Li, Kuiping,Li, Zhi,Yang, Yang,et al. Strong modulations on the Bay of Bengal monsoon onset vortex by the first northward-propagating intra-seasonal oscillation[J]. CLIMATE DYNAMICS,2016,47(1-2):107-115. |
| APA | Li, Kuiping,Li, Zhi,Yang, Yang,Xiang, Baoqiang,Liu, Yanliang,&Yu, Weidong.(2016).Strong modulations on the Bay of Bengal monsoon onset vortex by the first northward-propagating intra-seasonal oscillation.CLIMATE DYNAMICS,47(1-2),107-115. |
| MLA | Li, Kuiping,et al."Strong modulations on the Bay of Bengal monsoon onset vortex by the first northward-propagating intra-seasonal oscillation".CLIMATE DYNAMICS 47.1-2(2016):107-115. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Strong modulations o（1260KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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