干旱区生态环境知识资源中心(Arid): A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula

Arid

DOI	10.5194/esd-14-931-2023
	A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula
	Soltani, Mohsen; Hamelers, Bert; Mofidi, Abbas; Fletcher, Christopher G.; Staal, Arie; Dekker, Stefan C.; Laux, Patrick; Arnault, Joel; Kunstmann, Harald; van der Hoeven, Ties; Lanters, Maarten
通讯作者	Soltani, M
来源期刊	EARTH SYSTEM DYNAMICS
ISSN	2190-4979
EISSN	2190-4987
出版年	2023
卷号	14 期号:5 页码:931-953
英文摘要	Extreme precipitation events and associated flash floods caused by synoptic cyclonic systems profoundly impact society and the environment, particularly in arid regions. This study brings forward a satellite-reanalysis-based approach to quantify extreme precipitation characteristics over the Sinai Peninsula (SiP) in Egypt from a statistical-synoptic perspective for the period of 2001-2020. With a multi-statistical approach developed in this research, SiP's wet and dry periods are determined. Using satellite observations of precipitation and a set of derived precipitation indices, we characterize the spatiotemporal variations of extreme rainfall climatologies across the SiP. Then, using the reanalysis datasets, synoptic systems responsible for the occurrence of extreme precipitation events along with the major tracks of cyclones during the wet and dry periods are described. Our results indicate that trends and spatial patterns of the rainfall events across the region are inconsistent in time and space. The highest precipitation percentiles (similar to 20 mm per month), frequencies (similar to 15 d per month with rainfall >= 10 mm d(-1)), standard deviations (similar to 9 mm month per month), and monthly ratios (similar to 18 %) are estimated in the northern and northeastern parts of the region during the wet period, especially in early winter; also, a substantial below-average precipitation condition (drier trend) is clearly observed in most parts except for the south. Mediterranean cyclones accompanied by the Red Sea and Persian troughs are responsible for the majority of extreme rainfall events year-round. A remarkable spatial relationship is found between SiP's rainfall and the atmospheric variables of sea level pressure, wind direction, and vertical velocity. A cyclone-tracking analysis indicates that 125 cyclones (with rainfall >= 10 mm d(-1)) formed within, or transferred to, the Mediterranean basin and precipitated over the SiP during wet periods compared to 31 such cyclones during dry periods. It is estimated around 15 % of cyclones with sufficient rainfall >40 mm d(-1) would be capable of leading to flash floods during the wet period. This study, therefore, sheds new light on the extreme precipitation characteristics over the SiP and its association with dominant synoptic-scale mechanisms over the eastern Mediterranean region.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001162405700001
WOS关键词	EXTRATROPICAL CYCLONES ; MEDITERRANEAN CLIMATE ; WINTER PRECIPITATION ; RAINFALL EVENTS ; WIND STORMS ; MIDDLE-EAST ; SEA ; WESTERN ; VARIABILITY ; DESERT
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395880
推荐引用方式 GB/T 7714	Soltani, Mohsen,Hamelers, Bert,Mofidi, Abbas,et al. A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula[J],2023,14(5):931-953.
APA	Soltani, Mohsen.,Hamelers, Bert.,Mofidi, Abbas.,Fletcher, Christopher G..,Staal, Arie.,...&Lanters, Maarten.(2023).A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula.EARTH SYSTEM DYNAMICS,14(5),931-953.
MLA	Soltani, Mohsen,et al."A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula".EARTH SYSTEM DYNAMICS 14.5(2023):931-953.