Interannual meridional displacement of the east asian upper-tropospheric jet stream in summer
文献类型：期刊论文
| 作者 | Lin, ZD; Lu, RY |
| 刊名 | Advances in atmospheric sciences
 |
| 出版日期 | 2005-03-01 |
| 卷号 | 22期号:2页码:199-211 |
| 关键词 | East asian jet stream Western north pacific subtropical high South asian high Interannual variations Meridional displacement |
| ISSN号 | 0256-1530 |
| 通讯作者 | Lin, zd(zdlin@mails.gscas.ac.cn) |
| 英文摘要 | On the interannual timescale, the meridional displacement of the east asian upper-tropospheric jet stream (eajs) is significantly associated with the rainfall anomalies in east asia in summer. in this. study, using the data from the national centers for environmental prediction-department of energy (ncep/doe) reanalysis-2 from 1979 to 2002, the authors investigate the interannual variations of the eajs's meridional displacement in summer and their associations with the variations of the south asian high (sah) and the western north pacific subtropical high (wnpsh), which are dominant circulation features in the upper and lower troposhere, respectively. the result from an eof analysis shows that the meridional displacement is the most remarkable feature of the interannual variations of the eajs in each month of summer and in summer as a whole. a composite analysis indicates that the summer (june-july-august, jja) eajs index, which is intended to depict the. interannual meridional displacement of the eajs, is not appropriate because the anomalies of the zonal wind at 200 hpa (u200) in july and august only, rather than in june, significantly contribute to the summer eajs index. thus, the index for each month in summer is defined according to the location of the eajs core in each month. composite analyses based on the monthly indexes show that corresponding to the monthly equatorward displacement of the eajs, the south asian high (sah) extends southeastward clearly in july and august, and the western north pacific subtropical high (wnpsh) withdraws southward in june and august. |
| WOS关键词 | MONSOON ; CIRCULATION ; ASSOCIATIONS ; COMPONENTS ; ANOMALIES ; CLIMATE ; PATTERN |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000227858000004 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378077 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lin, ZD |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, ZD,Lu, RY. Interannual meridional displacement of the east asian upper-tropospheric jet stream in summer[J]. Advances in atmospheric sciences,2005,22(2):199-211. |
| APA | Lin, ZD,&Lu, RY.(2005).Interannual meridional displacement of the east asian upper-tropospheric jet stream in summer.Advances in atmospheric sciences,22(2),199-211. |
| MLA | Lin, ZD,et al."Interannual meridional displacement of the east asian upper-tropospheric jet stream in summer".Advances in atmospheric sciences 22.2(2005):199-211. |
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来源：中国科学院大学
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