Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032142 |
A 20-Year Climatology of Madden-Julian Oscillation Convection: Large-Scale Precipitation Tracking From TRMM-GPM Rainfall | |
Kerns, Brandon W.1; Chen, Shuyi S.2 | |
2020-04-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study presents a 20-year climatology of the Madden-Julian Oscillation (MJO) convection based on Large-scale Precipitation Tracking (LPT) using TRMM-GPM Multisatellite Precipitation Analysis (TMPA) data from 1998-2018 over the global tropics-midlatitudes (50 degrees S-50 degrees N). A total of 215 convective events are identified as MJO LPT systems over the 20 years, extending the results of Kerns and Chen (2016, ). MJO LPT systems provide quantitative information regarding size, intensity, and location of the MJO convection in both the longitudinal and meridional directions. The MJO contributes up to 40-50% of the annual precipitation over the tropical Indo-Pacific warm pool. MJO LPT systems have distinct seasonal and interannual variability. While MJO LPT systems are generally confined over the equatorial tropics during Boreal winter, some MJO LPT systems propagate northeast in the Bay of Bengal or from the South China Sea to the western North Pacific during Boreal summer. MJO LPT systems are more than doubled over the Indian Ocean (IO) and Maritime Continent (MC) during La Nina compared to El Nino. The 63% of MJO LPT systems initiate over the tropical IO, 26% over the MC and western Pacific, and 11% from the central Pacific to South America. About 40% of the MJO LPT systems that initialized over the IO were unable to propagate through the MC, namely, the barrier effect. The MC barrier effect is most pronounced during the spring and autumn transitions. This 20-year MJO LPT climatology product will be provided as a supplement to this publication. |
英文关键词 | MJO rainfall tropical tracking |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000526643500005 |
WOS关键词 | MARITIME CONTINENT ; MJO INITIATION ; INTRASEASONAL OSCILLATION ; EQUATORIAL WAVES ; DEEP CONVECTION ; LIFE-CYCLE ; VARIABILITY ; CIRCULATION ; TEMPERATURE ; SEASONALITY |
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/280179 |
专题 | 气候变化 |
作者单位 | 1.Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA; 2.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Kerns, Brandon W.,Chen, Shuyi S.. A 20-Year Climatology of Madden-Julian Oscillation Convection: Large-Scale Precipitation Tracking From TRMM-GPM Rainfall[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(7). |
APA | Kerns, Brandon W.,&Chen, Shuyi S..(2020).A 20-Year Climatology of Madden-Julian Oscillation Convection: Large-Scale Precipitation Tracking From TRMM-GPM Rainfall.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(7). |
MLA | Kerns, Brandon W.,et al."A 20-Year Climatology of Madden-Julian Oscillation Convection: Large-Scale Precipitation Tracking From TRMM-GPM Rainfall".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.7(2020). |
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