Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2021.105788 |
The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season | |
Narendra Reddy Nelli, Diana Francis, Ricardo Fonseca, Rachid Abida, ... Taha Al Hosary | |
2021-07-29 | |
发表期刊 | Atmospheric Research |
出版年 | 2021 |
英文摘要 | Mesoscale Convective Systems (MCSs) over the southern Arabian Peninsula are more common during the spring months of March and April. In this paper, the processes behind such severe convective events and their local-scale impacts are investigated using reanalysis data, satellite-derived and observational products. The analysis of 95 MCS events from 2000 to 2020 revealed that they are triggered by low-level wind convergence and moisture advection from the Arabian Sea, Arabian Gulf and/or Red Sea. An equatorward displacement and strengthening of the subtropical jet also precondition the environment, as does the presence of a mid-level trough. The latter is generally part of a large-scale pattern of anomalies that are equivalent barotropic in nature, and therefore likely a response to tropical or subtropical forcing. At more local-scales, a drying of the mid-troposphere between 850 and 250 hPa typically by 50%, a reduction of the upper-level winds by about 5 m s−1, and an increase in the upper-tropospheric temperature on average by 2–3 K, are typically observed during MCS events. Over the 21-year period, a statistically significant increase in the MCSs' duration over southeast Arabian Peninsula has been found, suggesting that such extreme events may be even more impactful in a warming world. |
领域 | 地球科学 |
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/335293 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Narendra Reddy Nelli, Diana Francis, Ricardo Fonseca, Rachid Abida, ... Taha Al Hosary. The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season[J]. Atmospheric Research,2021. |
APA | Narendra Reddy Nelli, Diana Francis, Ricardo Fonseca, Rachid Abida, ... Taha Al Hosary.(2021).The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season.Atmospheric Research. |
MLA | Narendra Reddy Nelli, Diana Francis, Ricardo Fonseca, Rachid Abida, ... Taha Al Hosary."The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season".Atmospheric Research (2021). |
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