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DOI | 10.1175/JCLI-D-16-0435.1 |
Dominant Synoptic Disturbance in the Extreme Rainfall at Cherrapunji, Northeast India, Based on 104 Years of Rainfall Data (1902-2005) | |
Murata, Fumie1; Terao, Toru2; Fujinami, Hatsuki3; Hayashi, Taiichi4; Asada, Haruhisa5; Matsumoto, Jun6,7; Syiemlieh, Hiambok J.8 | |
2017-10-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; India |
英文摘要 | The characteristics of active rainfall spells (ARSs) at Cherrapunji, northeast India, where extreme high rainfall is experienced, and their relationships with large-scale dynamics were studied using daily rainfall data from 1902 to 2005 and Japanese 55-Year Reanalysis from 1958 to 2005. Extreme high daily rainfalls occur in association with ARSs. The extremely large amounts of rainfall in the monsoon season are determined by the cumulative rainfall during ARSs. ARSs start when anomalous anticyclonic circulation (AAC) at 850 hPa propagates westward from the South China Sea and western North Pacific, and covers the northern Bay of Bengal. The AAC propagates farther westward and suppresses convection over central India during ARSs at Cherrapunji, and continues for 3 to 14 days. Consequently, a northward shift of the monsoon trough during the "break'' in the Indian core region occurs. The westerly wind, which prevails in the northern portion of the AAC, transports moisture toward northeast India and enhances moisture convergence over northeast India with southerly moisture transport from the Bay of Bengal, and greatly intensifies the orographic rainfall. In the upper troposphere, the Tibetan high tends to extend southward with the onset of ARSs. A linear relationship can be seen between the length and total rainfall of an ARS. Longer ARSs tend to result in greater total rainfall. AACs with a greater zonal scale tend to produce longer and more intense ARSs. This study provides evidence for the effect of western North Pacific AACs on the Indian summer monsoon. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411438000012 |
WOS关键词 | GRIDDED PRECIPITATION DATASET ; FREQUENCY EQUATORIAL WAVES ; SHEARED ZONAL FLOW ; SUMMER MONSOON ; INTRASEASONAL OSCILLATION ; INTERANNUAL VARIABILITY ; WESTERN PACIFIC ; DENSE NETWORK ; BOREAL SUMMER ; BANGLADESH |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19552 |
专题 | 气候变化 |
作者单位 | 1.Kochi Univ, Fac Sci & Technol, Kochi, Japan; 2.Kagawa Univ, Fac Educ, Takamatsu, Kagawa, Japan; 3.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan; 4.Kyoto Univ, Ctr Southeast Asian Studies, Kyoto, Japan; 5.Nara Womens Univ, Nara, Japan; 6.Tokyo Metropolitan Univ, Hachioji, Tokyo, Japan; 7.Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa, Japan; 8.North Eastern Hill Univ, Dept Geog, Shillong, Meghalayn, India |
推荐引用方式 GB/T 7714 | Murata, Fumie,Terao, Toru,Fujinami, Hatsuki,et al. Dominant Synoptic Disturbance in the Extreme Rainfall at Cherrapunji, Northeast India, Based on 104 Years of Rainfall Data (1902-2005)[J]. JOURNAL OF CLIMATE,2017,30(20). |
APA | Murata, Fumie.,Terao, Toru.,Fujinami, Hatsuki.,Hayashi, Taiichi.,Asada, Haruhisa.,...&Syiemlieh, Hiambok J..(2017).Dominant Synoptic Disturbance in the Extreme Rainfall at Cherrapunji, Northeast India, Based on 104 Years of Rainfall Data (1902-2005).JOURNAL OF CLIMATE,30(20). |
MLA | Murata, Fumie,et al."Dominant Synoptic Disturbance in the Extreme Rainfall at Cherrapunji, Northeast India, Based on 104 Years of Rainfall Data (1902-2005)".JOURNAL OF CLIMATE 30.20(2017). |
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