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DOI | 10.1029/2021GL094873 |
Mesoscale Convective Systems Dominate the Energetics of the South Asian Summer Monsoon Onset | |
Xingchao Chen; L. Ruby Leung; Zhe Feng; Fengfei Song; Qiu Yang | |
2021-08-25 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The rapid onset of the South Asian summer monsoon (SASM) is featured as an abrupt increase of rainfall and atmospheric column-integrated moist static energy (MSE). Using convection-permitting simulations, a novel cloud tracking technique, and an MSE budget, the relative roles of mesoscale convective systems (MCSs) and non-MCS deep convection in the SASM onset energetics are studied. The analysis shows MCSs greatly contribute to the sudden increases of rainfall, diabatic MSE sources, and the subsequent enhanced export of column-integrated MSE during the rapid onset phase. A “diabatic sources-energy export” plane analysis delineates the different roles of MCSs and non-MCS deep convection. Although deep convection always leads to a net energy export, mesoscale organization of deep convection dominates the convection-associated positive feedbacks that accelerate the energy cycle of the SASM onset. Sensitivity experiment shows that the results are insensitive to the model resolutions. |
领域 | 气候变化 |
URL | 查看原文 |
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/336644 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Xingchao Chen,L. Ruby Leung,Zhe Feng,et al. Mesoscale Convective Systems Dominate the Energetics of the South Asian Summer Monsoon Onset[J]. Geophysical Research Letters,2021. |
APA | Xingchao Chen,L. Ruby Leung,Zhe Feng,Fengfei Song,&Qiu Yang.(2021).Mesoscale Convective Systems Dominate the Energetics of the South Asian Summer Monsoon Onset.Geophysical Research Letters. |
MLA | Xingchao Chen,et al."Mesoscale Convective Systems Dominate the Energetics of the South Asian Summer Monsoon Onset".Geophysical Research Letters (2021). |
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