Leading spatial patterns of summer rainfall quasi-biennial oscillation and characteristics of meteorological backgrounds over eastern china
文献类型：期刊论文
| 作者 | Jia Jian-Ying1,2; Wang Yong3,4; Sun Zhao-Bo1,2; Liu Yi3; Chen Hai-Shan1,2 |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 53期号:10页码:2300-2309 |
| 关键词 | Summer rainfall Tropospheric quasi-biennial oscillation (tbo) Spatial-temporal distribution General circulation Sea surface temperature (sst) |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2010.10.004 |
| 通讯作者 | Jia jian-ying(jiajianying@nuist.edu.cn) |
| 英文摘要 | In virtue of empirical orthogonal function (eof) analysis and correlation analysis etc., the leading spatial patterns of summer rainfall quasi-biennial oscillation (tbo) and the meteorological backgrounds are analyzed using monthly mean rainfall of china from 160 stations during the year of 1951 similar to 2005 from china meteorological administration and ncep/ncar reanalysis datasets. the following are main results: (1) the seasonal variation of rainfall is significant over china and summer is the main stage of rainfall. summer rainfall has noticeable tropospheric quasi-biennial oscillation (tbo) character and the eastern china has the maximum rainfall tbo variance. (2) the summer rainfall tbo has two leading eof spatial modes over eastern china, the first mode reflects the reverse phase of rainfall evolution between south and north of 27 degrees n and the rainfall amplitude is relatively larger than the second mode. the max value center of the second mode located at hetao and north china. (3)the meteorological backgrounds that form the two modes are different. the first mode has positive correlation with west pacific sea surface temperature anomaly (ssta) and negative correlation with east pacific ssta while the second mode has positive correlation with japanese sea ssta. when the summer rainfall tbo increased at yangtze-huaihe river valley (the first mode), the west pacific sst is higher and the east pacific sst is lower than normal period, 850 hpa has an anticyclone anomaly over eastern china and along the coast, the correlation field between the first model and 500 hpa height anomaly presents '+-+' pattern over east asia, the south asia anticyclone strengthens at 200 hpa and the position of the west jet moves south. when the position of summer rainfall tbo moves north (the second mode), 850 hpa has an cyclone anomaly over eastern china and along the coast, the south asia anticyclone weakens at 200 hpa and the position of the west jet moves north. |
| WOS关键词 | SOUTH ASIAN MONSOON ; VARIABILITY ; PRECIPITATION ; SENSITIVITY |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000283754800004 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2414680 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Jia Jian-Ying |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ KLME, Nanjing 210044, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Dept Atmospher Sci, Nanjing 210044, Peoples R China 3.Chinese Acad Sci, Key Lab Middle Atmosphere & Global Environm Obser, Inst Atmospher Phys, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia Jian-Ying,Wang Yong,Sun Zhao-Bo,et al. Leading spatial patterns of summer rainfall quasi-biennial oscillation and characteristics of meteorological backgrounds over eastern china[J]. Chinese journal of geophysics-chinese edition,2010,53(10):2300-2309. |
| APA | Jia Jian-Ying,Wang Yong,Sun Zhao-Bo,Liu Yi,&Chen Hai-Shan.(2010).Leading spatial patterns of summer rainfall quasi-biennial oscillation and characteristics of meteorological backgrounds over eastern china.Chinese journal of geophysics-chinese edition,53(10),2300-2309. |
| MLA | Jia Jian-Ying,et al."Leading spatial patterns of summer rainfall quasi-biennial oscillation and characteristics of meteorological backgrounds over eastern china".Chinese journal of geophysics-chinese edition 53.10(2010):2300-2309. |
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来源：中国科学院大学
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