Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.4825 |
An apparent relationship between Madden-Julian Oscillation and the advance of Indian summer monsoon | |
Singh, M.1; Bhatla, R.1; Pattanaik, D. R.2 | |
2017-03-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | A marked seasonality in the occurrence of Madden-Julian Oscillation (MJO) events is well known. The core region of oscillation is located at low latitudes (between the equator and 15 degrees) in the summer hemisphere. The eastward progression of MJO signal interacts with the monsoon circulation and modulates the advance period of Indian summer monsoon (ISM). The analyses suggest that the mean advance period of ISM (41 days) is comparable with the life cycle of the MJO (30-60 days). The advance period of ISM has been categorised into normal, fast and slow-advance years to decide the pace of the monsoon during progression of monsoon. During the period 1983-2015, the fastest progress of the monsoon was seen in the year 2013 (fastest advancement in the last 33 years) and slowest progress of monsoon was seen in the year 2002 (most lethargic advancement in the last 33 years). The results of the analyses show that variation in daily MJO-amplitude during fast-advancement years is more as compared with the normal and slow-advancement years. The normal-advancement years mostly occur during MJO phase 1 and phase 2 and fast-advancement years frequently occur during MJO phase 2; however, slow-advancement years are found to occur during MJO phase 5 and phase 6. The MJO phase 2 is the most frequent phase and MJO phase 8 is the least frequent phase during advance of monsoon. However, the highest amplitude is recorded during MJO phase 8. The strong (weak) monsoon current is modulated by strong (weak) MJO phases. |
英文关键词 | advance period ISM ISVs MJO |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000397497700021 |
WOS关键词 | WESTERN MARITIME CONTINENT ; INTRASEASONAL OSCILLATION ; NORTHWARD PROPAGATION ; SOUTHWEST MONSOON ; DIURNAL CYCLE ; RAINFALL ; ONSET ; VARIABILITY ; MJO ; PACIFIC |
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/36836 |
专题 | 气候变化 |
作者单位 | 1.Banaras Hindu Univ, Dept Geophys, Varanasi 221005, Uttar Pradesh, India; 2.Indian Meteorol Dept, NWP Div, New Delhi, India |
推荐引用方式 GB/T 7714 | Singh, M.,Bhatla, R.,Pattanaik, D. R.. An apparent relationship between Madden-Julian Oscillation and the advance of Indian summer monsoon[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(4). |
APA | Singh, M.,Bhatla, R.,&Pattanaik, D. R..(2017).An apparent relationship between Madden-Julian Oscillation and the advance of Indian summer monsoon.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(4). |
MLA | Singh, M.,et al."An apparent relationship between Madden-Julian Oscillation and the advance of Indian summer monsoon".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.4(2017). |
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