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DOI	10.1016/j.dynatmoce.2020.101198
	Synoptic and dynamic analysis of a flash flood-inducing heavy rainfall event in arid and semi-arid central-northern Iran and its simulation using the WRF model
	Khansalari S.; Ranjbar-Saadatabadi A.; Fazel-Rastgar F.; Raziei T.
发表日期	2021
ISSN	03770265
卷号	93
英文摘要	The synoptic and dynamic aspects of heavy rainfall occurred on 5th May 2017 and caused flash flooding in arid and semi-arid central-northern Iran is analyzed by the Weather Research and Forecasting (WRF) model. This system synoptically is attributed to a surface low-pressure centered over southern Iran extended to the central parts, linking to a mid-tropospheric tilted-trough over western Iran, and advecting significant moisture from the Mediterranean Sea and the Red Sea to the studied area. The dynamical analysis revealed that the penetration of the upper-tropospheric potential vorticity streamer up to 300 hPa level was not related to such heavy rainfall. Contrarily, the low-level factors such as extensive moisture advection, mid-tropospheric diabatic processes such as the latent heat release, daytime deep convection, and topographical impact of Zagros Mountains were found as the key factors leading to this system. This study also examines 11 different convection schemes simulated by the WRF model and verified against rainfall observation. The forecast skills of the output simulations suggest the Grell-Devenyi scheme as the superior configuration in simulating observed precipitation of the event over the area. © 2020 Elsevier B.V.
英文关键词	Deep convection; Flooding; Grell convection scheme; Heavy rainfall; Iran; PV streamer; WRF model
语种	英语
scopus关键词	Floods; Moisture; Rain; Troposphere; Deep convection; Diabatic process; Dynamical analysis; Latent heat release; Mediterranean sea; Moisture advection; Potential vorticity; Weather research and forecasting models; Weather forecasting; arid environment; atmospheric convection; atmospheric dynamics; computer simulation; flash flood; flooding; rainfall; semiarid region; synoptic meteorology; weather forecasting; Iran
来源期刊	Dynamics of Atmospheres and Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178262
作者单位	Atmospheric Science and Meteorological Research Center, Tehran, Iran; York University, Toronto, Canada; Soil Conservation and Watershed Management Research Institute (SCWMRI), Agricultural Research, Education and Extension Organization (AREO), Tehran, Iran
推荐引用方式 GB/T 7714	Khansalari S.,Ranjbar-Saadatabadi A.,Fazel-Rastgar F.,et al. Synoptic and dynamic analysis of a flash flood-inducing heavy rainfall event in arid and semi-arid central-northern Iran and its simulation using the WRF model[J],2021,93.
APA	Khansalari S.,Ranjbar-Saadatabadi A.,Fazel-Rastgar F.,&Raziei T..(2021).Synoptic and dynamic analysis of a flash flood-inducing heavy rainfall event in arid and semi-arid central-northern Iran and its simulation using the WRF model.Dynamics of Atmospheres and Oceans,93.
MLA	Khansalari S.,et al."Synoptic and dynamic analysis of a flash flood-inducing heavy rainfall event in arid and semi-arid central-northern Iran and its simulation using the WRF model".Dynamics of Atmospheres and Oceans 93(2021).