The springtime north asia cyclone activity index and the southern annular mode
文献类型：期刊论文
| 作者 | Yue Xu1,2; Wang Huijun1 |
| 刊名 | Advances in atmospheric sciences
 |
| 出版日期 | 2008-07-01 |
| 卷号 | 25期号:4页码:673-679 |
| 关键词 | North asia cyclone Southern annular mode Atmospheric general circulation |
| ISSN号 | 0256-1530 |
| DOI | 10.1007/s00376-008-0673-5 |
| 通讯作者 | Wang huijun(wanghj@mail.iap.ac.cn) |
| 英文摘要 | The relationship between the north asia cyclone (nac) activity and the southern annular mode (sam) is documented in this research. the definition of the nac index (naci) is based on the atmospheric relative vorticity in north asia. the analysis yields a significant positive correlation between previous winter southern annular mode index (sami) and spring naci in the interannual variability, with a correlation coefficient of 0.51 during 1948-2000. analysis of the nac-related and sam-related atmospheric general circulation variability demonstrates such a relationship. the study further reveals that when the winter sam becomes strong, the springtime atmospheric convection in tropical western pacific will intensify and the local hadley circulation will be strengthened. as a result, the abnormal subsiding motion over south china makes the temperature gradient intensified in the low level and strengthens the jet in the high level, both of which are beneficial to the development of nac activity. |
| WOS关键词 | INTERANNUAL VARIABILITY ; ANTARCTIC OSCILLATION ; EAST-ASIA ; HEMISPHERE ; CIRCULATION ; PREDICTION ; REANALYSES ; TRENDS |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000257689200015 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2388888 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang Huijun |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr NZC, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yue Xu,Wang Huijun. The springtime north asia cyclone activity index and the southern annular mode[J]. Advances in atmospheric sciences,2008,25(4):673-679. |
| APA | Yue Xu,&Wang Huijun.(2008).The springtime north asia cyclone activity index and the southern annular mode.Advances in atmospheric sciences,25(4),673-679. |
| MLA | Yue Xu,et al."The springtime north asia cyclone activity index and the southern annular mode".Advances in atmospheric sciences 25.4(2008):673-679. |
入库方式： iSwitch采集
来源：中国科学院大学
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。