气候变化领域集成服务门户(CCPortal): Extreme precipitation events over Saudi Arabia during the wet season and their associated teleconnections

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DOI	10.1016/j.atmosres.2019.104655
	Extreme precipitation events over Saudi Arabia during the wet season and their associated teleconnections
	Atif R.M.; Almazroui M.; Saeed S.; Abid M.A.; Islam M.N.; Ismail M.
发表日期	2020
ISSN	0169-8095
卷号	231
英文摘要	An assessment of the Extreme Precipitation Events (EPEs) is important because of their potential impacts on the local livelihood, ecosystem, and water resource management. In the present study, the EPEs are defined by applying a non-parametric (95th percentile) approach over different climatic regions of Saudi Arabia using observed daily precipitation data for the period 1984–2016 obtained from 27 meteorological stations. The frequency, composite and correlation analyses are performed to evaluate the statistics of EPEs and their teleconnections. During the wet season (Nov-Apr), the frequency of the EPEs (≥25 mm/day) are higher over northeastern, central and southwestern coastal parts of Saudi Arabia. The composites and correlation analyses show that the EPEs over Saudi Arabia are associated with mid-latitude circumglobal wave train (CGT), which evolves a few days before the onset of EPEs and decays afterwards. The CGT modulates the upper-level trough over the Arabian Peninsula (AP) along with the surface anomalous low-pressure system that enhances moisture convergence, favoring the occurrence of EPEs over the region. The EPEs over Saudi Arabia are also associated with El Niño Southern Oscillation (ENSO), which shows that during the positive (negative) ENSO phase the frequency of EPEs increases (decreases) over the country. Moreover, the El Niño (with positive CGT) enhances the EPEs frequency over Saudi Arabia while vice-versa happens for La Niña (with negative CGT) phase. © 2019
英文关键词	Arabian Peninsula; CGT; ENSO; Extreme precipitation events (EPEs); Saudi Arabia
学科领域	Atmospheric pressure; Climatology; Correlation methods; Water management; Arabian Peninsula; Correlation analysis; Daily precipitations; ENSO; Extreme precipitation events; Meteorological station; Saudi Arabia; Waterresource management; Precipitation (meteorology); atmospheric moisture; correlation; El Nino-Southern Oscillation; La Nina; precipitation assessment; teleconnection; wet season; Arabian Peninsula; Saudi Arabia
语种	英语
scopus关键词	Atmospheric pressure; Climatology; Correlation methods; Water management; Arabian Peninsula; Correlation analysis; Daily precipitations; ENSO; Extreme precipitation events; Meteorological station; Saudi Arabia; Waterresource management; Precipitation (meteorology); atmospheric moisture; correlation; El Nino-Southern Oscillation; La Nina; precipitation assessment; teleconnection; wet season; Arabian Peninsula; Saudi Arabia
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120631
作者单位	Center of Excellence for Climate Change Research (CECCR), Department of Meteorology, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Earth and Environmental Sciences, University of Leuven (KU Leuven), Belgium; Earth System Physics Section, International Centre for Theoretical Physics (ICTP), Trieste, Italy
推荐引用方式 GB/T 7714	Atif R.M.,Almazroui M.,Saeed S.,et al. Extreme precipitation events over Saudi Arabia during the wet season and their associated teleconnections[J],2020,231.
APA	Atif R.M.,Almazroui M.,Saeed S.,Abid M.A.,Islam M.N.,&Ismail M..(2020).Extreme precipitation events over Saudi Arabia during the wet season and their associated teleconnections.Atmospheric Research,231.
MLA	Atif R.M.,et al."Extreme precipitation events over Saudi Arabia during the wet season and their associated teleconnections".Atmospheric Research 231(2020).