干旱区生态环境知识资源中心(Arid): The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season

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DOI	10.1016/j.atmosres.2021.105788
	The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season
	Nelli, Narendra Reddy; Francis, Diana; Fonseca, Ricardo; Abida, Rachid; Weston, Michael; Wehbe, Youssef; Al Hosary, Taha
通讯作者	Francis, D (corresponding author), Khalifa Univ Sci & Technol, POB 54224, Abu Dhabi, U Arab Emirates.
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2021
卷号	262
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-scale, 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.
英文关键词	Mesoscale convective systems Arid regions Transition seasons Large-scale triggers Local-scale impacts Climate change
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000691489000002
WOS关键词	PRECIPITATION PRODUCTS ; LAYER STRUCTURE ; MESOSCALE ; SYSTEMS ; SATELLITE ; VARIABILITY ; EVOLUTION ; RAINFALL ; AFRICA ; REGION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362669
作者单位	[Nelli, Narendra Reddy; Francis, Diana; Fonseca, Ricardo; Abida, Rachid; Weston, Michael; Wehbe, Youssef] Khalifa Univ Sci & Technol, POB 54224, Abu Dhabi, U Arab Emirates; [Wehbe, Youssef; Al Hosary, Taha] Natl Ctr Meteorol NCM, POB 4815, Abu Dhabi, U Arab Emirates
推荐引用方式 GB/T 7714	Nelli, Narendra Reddy,Francis, Diana,Fonseca, Ricardo,et al. The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season[J],2021,262.
APA	Nelli, Narendra Reddy.,Francis, Diana.,Fonseca, Ricardo.,Abida, Rachid.,Weston, Michael.,...&Al Hosary, Taha.(2021).The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season.ATMOSPHERIC RESEARCH,262.
MLA	Nelli, Narendra Reddy,et al."The atmospheric controls of extreme convective events over the southern Arabian Peninsula during the spring season".ATMOSPHERIC RESEARCH 262(2021).