Analysis and numerical simulations of the teleconnection between indian summer monsoon and precipitation in north china
文献类型：期刊论文
| 作者 | Liu Yunyun1,2,3; Ding Yihui2 |
| 刊名 | Acta meteorologica sinica
 |
| 出版日期 | 2008 |
| 卷号 | 22期号:4页码:489-501 |
| 关键词 | Indian summer monsoon Summer precipitation North china Teleconnection Regional climate model of the national climate center (regcm_ncc) |
| ISSN号 | 0894-0525 |
| 通讯作者 | Liu yunyun(liuyuny@cma.gov.cn) |
| 英文摘要 | In the early 1980s, chinese meteorologists discovered the positive correlation in summer rainfall between india and north china and the correlation was later confirmed by some researches in and outside china. based on a variety of meteorological data from 1951 to 2005 and numerical simulations, the present study investigates such a correlation between indian summer monsoon (ism) and precipitation in north china. furthermore, we discuss the intrinsic relations of the positive (northwest india)-negative (the tibetan plateau)-positive (north china) precipitation anomaly teleconnection pattern from two aspects of thermal and dynamical factors, which not only confirms the precipitation teleconnection previously discovered again, but also reveals the influence mechanism of the ism on the rainfall in north china. the results show that: (1) when the ism is strong (weak), the precipitation in north china tends to be more (less) than normal; however, when the rainfall in north china is more (less) than normal, the probability of the strengthening (weakening) of the ism is relatively lower. this implies that the ism anomaly has more impact oil the rainfall in north china. (2) the indian low usually dominantly impacts the intensity of the ism. when the indian low deepens, the low troughs in mid-high latitudes are frequently strengthened, and the ridge of the western pacific subtropical high (wpsh) extends westward. the southwesterly water vapor transport originated from low-latitudes and the southeasterly water vapor transport along the southwestern flank of the wpsh converge in north china, which is favorable for more rainfall there than normal, and vice versa. (3) the simulations from the regional climate model developed by national climate center (regcm-ncc) capture the salient feature of the precipitation teleconnection between india and north china. the simulated anomalous atmospheric circulations are close to observations, which confirms the existence of such a teleconnection from another angle. |
| WOS关键词 | REGIONAL CLIMATE MODEL ; EAST-ASIA ; SOUTH |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000262417000008 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2387992 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Liu Yunyun |
| 作者单位 | 1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Natl Climate Ctr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Yunyun,Ding Yihui. Analysis and numerical simulations of the teleconnection between indian summer monsoon and precipitation in north china[J]. Acta meteorologica sinica,2008,22(4):489-501. |
| APA | Liu Yunyun,&Ding Yihui.(2008).Analysis and numerical simulations of the teleconnection between indian summer monsoon and precipitation in north china.Acta meteorologica sinica,22(4),489-501. |
| MLA | Liu Yunyun,et al."Analysis and numerical simulations of the teleconnection between indian summer monsoon and precipitation in north china".Acta meteorologica sinica 22.4(2008):489-501. |
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来源：中国科学院大学
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