Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093688 |
Do sudden stratospheric warmings boost convective activity in the tropics? | |
K. Yoshida; R. Mizuta | |
2021-08-09 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The impact of sudden stratospheric warmings (SSWs) on the tropical troposphere is investigated using 5000-year scale ensemble simulations with a 60-km global atmospheric model to detect signals from large natural variability of convection. Stratospheric temperature and static stability decrease in the tropics, and convective activity peaks simultaneously with the tropical upwelling. Tropical cyclone intensity and accumulated cyclone energy (ACE) show a weak but statistically robust enhancement of 5% and 9%, respectively, relative to the December–March climatology. However, the relative probability of the largest 10% of ACE anomalies increases by about 30%. Extratropical waves toward the tropical troposphere, which can alter convective activity, do not show a strong systematic variation during SSWs, and no significant association with convective activity is found if the sample size is large enough. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335852 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | K. Yoshida,R. Mizuta. Do sudden stratospheric warmings boost convective activity in the tropics?[J]. Geophysical Research Letters,2021. |
APA | K. Yoshida,&R. Mizuta.(2021).Do sudden stratospheric warmings boost convective activity in the tropics?.Geophysical Research Letters. |
MLA | K. Yoshida,et al."Do sudden stratospheric warmings boost convective activity in the tropics?".Geophysical Research Letters (2021). |
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