Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0822.1 |
Zonal SST Difference as a Potential Environmental Factor Supporting the Longevity of the Madden-Julian Oscillation | |
Suematsu, Tamaki1,2; Miura, Hiroaki1 | |
2018-09-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:18页码:7549-7564 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | An environment favorable for the development of the Madden-Julian oscillation (MJO) was investigated by classifying MJO-like atmospheric patterns as MJO and regionally confined convective (RCC) events. Comparison of MJO and RCC events showed that even when preceded by a major convective suppression event, convective events did not develop into an MJO when large-scale buildup of moist static energy (MSE) was inhibited. The difference in the MSE accumulation between MJO and RCC is related to the contrasting low-frequency basic-state sea surface temperature (SST) pattern; the MJO and RCC events were associated with anomalously warm and cold low-frequency SSTs prevailing over the western to central Pacific, respectively. Differences in the SST anomaly field were absent from the intraseasonal frequency range of 20-60 days. The basic-state SST pattern associated with the MJO was characterized by a positive zonal SST gradient from the Indian Ocean to the western Pacific, which provided a long-standing condition that allowed for sufficient buildup of MSE across the Indian Ocean to the western Pacific via large-scale low-level convergence over intraseasonal and longer time scales. The results of this study suggest the importance of such a basic-state SST, with a long-lasting positive zonal SST gradient, for enhancing convection over a longer than intraseasonal time scale in realizing a complete MJO life cycle. |
英文关键词 | Atmosphere-ocean interaction Madden-Julian oscillation Air-sea interaction |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440982200001 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; TROPICAL INTRASEASONAL OSCILLATIONS ; GENERAL-CIRCULATION MODEL ; MULTIVARIATE MJO INDEX ; MARITIME CONTINENT ; AUSTRAL SUMMER ; EL-NINO ; PACIFIC ; VARIABILITY ; IMPACTS |
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/19399 |
专题 | 气候变化 |
作者单位 | 1.Univ Tokyo, Tokyo, Japan; 2.Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa, Japan |
推荐引用方式 GB/T 7714 | Suematsu, Tamaki,Miura, Hiroaki. Zonal SST Difference as a Potential Environmental Factor Supporting the Longevity of the Madden-Julian Oscillation[J]. JOURNAL OF CLIMATE,2018,31(18):7549-7564. |
APA | Suematsu, Tamaki,&Miura, Hiroaki.(2018).Zonal SST Difference as a Potential Environmental Factor Supporting the Longevity of the Madden-Julian Oscillation.JOURNAL OF CLIMATE,31(18),7549-7564. |
MLA | Suematsu, Tamaki,et al."Zonal SST Difference as a Potential Environmental Factor Supporting the Longevity of the Madden-Julian Oscillation".JOURNAL OF CLIMATE 31.18(2018):7549-7564. |
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