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DOI | 10.1002/2017GL073625 |
Global association of the Madden-Julian Oscillation with monsoon lows and depressions | |
Haertel, Patrick; Boos, William R. | |
2017-08-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:15 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Previous research has revealed that monsoon lows and depressions are modulated on intraseasonal time scales in a few regions, including India, Australia, and the East Pacific. This study examines whether such modulation occurs on a global scale and, in particular, how the Madden-Julian Oscillation (MJO) is associated with changes in synoptic-scale vortices across all monsoon regions. The spatial climatology of monsoon disturbances is largely insensitive to MJO amplitude. However, monsoon disturbance frequency (MDF) varies substantially with MJO phase, with regional perturbations of 25 to 90% of the seasonal mean value across the tropics. In off-equatorial locations, MDF maxima occur in locations where the MJO enhances low level cyclonic vorticity, typically near the western edge of midlevel moisture perturbations. In contrast, equatorial MDF perturbations are in phase with MJO moisture and rainfall anomalies, with maxima in regions with strong low level zonal wind convergence. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408379000057 |
WOS关键词 | MOIST BAROCLINIC INSTABILITY ; COUPLED EQUATORIAL WAVES ; INTRASEASONAL OSCILLATION ; TROPICAL CYCLONES ; SCALE CIRCULATION ; WESTERN PACIFIC ; SUMMER MONSOON ; MODULATION ; CONVECTION ; MJO |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/27002 |
专题 | 气候变化 |
作者单位 | Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA |
推荐引用方式 GB/T 7714 | Haertel, Patrick,Boos, William R.. Global association of the Madden-Julian Oscillation with monsoon lows and depressions[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(15). |
APA | Haertel, Patrick,&Boos, William R..(2017).Global association of the Madden-Julian Oscillation with monsoon lows and depressions.GEOPHYSICAL RESEARCH LETTERS,44(15). |
MLA | Haertel, Patrick,et al."Global association of the Madden-Julian Oscillation with monsoon lows and depressions".GEOPHYSICAL RESEARCH LETTERS 44.15(2017). |
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