干旱区生态环境知识资源中心(Arid): An investigation into climatic and terrestrial drivers of dust storms in the Sistan region of Iran in the early twenty-first century

Arid

DOI	10.1016/j.scitotenv.2020.143952
	An investigation into climatic and terrestrial drivers of dust storms in the Sistan region of Iran in the early twenty-first century
	Miri, Abbas; Maleki, Saeideh; Middleton, Nick
通讯作者	Miri, A (corresponding author), Univ Zabol, Fac Water & Soil, Dept Watershed & Range Management, Zabol, Iran.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	757
英文摘要	Dust storms cause a wide range of impacts on environment, economy and human health in the Sistan region of southeastern Iran. This paper investigates long-term variability of dust activity over 23 years (1997-2019) using the Dust Storm Index (DSI) and the frequency of dust-storm days (DSD, visibility <1000 m) and assesses the associated importance of various terrestrial and climatic drivers. A dust storm corridor was identified, based on the prevailing wind direction at Zabol, including parts of the Hamoun lakes and surrounding desert in order to study the effects of vegetation cover and lake water levels on dust activity. The results show maximum intensity of dust storms occurred at 10:30 a.m. and in the summer, consistent with the highest wind speeds - associated with the regionally important Levar wind - and highest air temperatures and lowest precipitation and relative humidity. Strong positive correlations were demonstrated between DSI and wind speed, particularly in summer. The 2000-2004 period saw severe dust-raising activity with a DSI of 530.6. Mean wind speeds were greater and precipitation, humidity, vegetation and water coverage were lower during this severe dust-activity period than in other periods. Comparing 2000-2004 with 1997-1999, DSI was five times higher and DSD eight times higher. The dust storms with the longest duration occurred in July 2001 and June 2008 (114 h and 78 h respectively). The July 2001 event, in which wind speed peaked at 25 m/s and visibility dropped to 100 m on several occasions, may be the longest continuous dust storm on record. The key role of water and vegetation cover in the Harnouns was highlighted, indicating the importance of protecting the Hamoun ecosystems and sustainably managing their water resources in efforts to mitigate dust storm hazards in the Sistan region. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Dust storm Sistan region Hamoun lakes Dust Storm Index (DSI) Levar wind Drought
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604432900126
WOS关键词	WIND EROSION ; TEMPORAL VARIATIONS ; EASTERN AUSTRALIA ; NORTHERN CHINA ; MIDDLE-EAST ; FREQUENCY ; TRANSPORT ; LAKE ; VEGETATION ; EVENTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of Oxford
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348186
作者单位	[Miri, Abbas] Univ Zabol, Fac Water & Soil, Dept Watershed & Range Management, Zabol, Iran; [Maleki, Saeideh] Univ Zabol, Dept Nat Resources, Zabol, Iran; [Middleton, Nick] Univ Oxford, St Annes Coll, Oxford OX2 6HS, England
推荐引用方式 GB/T 7714	Miri, Abbas,Maleki, Saeideh,Middleton, Nick. An investigation into climatic and terrestrial drivers of dust storms in the Sistan region of Iran in the early twenty-first century[J]. University of Oxford,2021,757.
APA	Miri, Abbas,Maleki, Saeideh,&Middleton, Nick.(2021).An investigation into climatic and terrestrial drivers of dust storms in the Sistan region of Iran in the early twenty-first century.SCIENCE OF THE TOTAL ENVIRONMENT,757.
MLA	Miri, Abbas,et al."An investigation into climatic and terrestrial drivers of dust storms in the Sistan region of Iran in the early twenty-first century".SCIENCE OF THE TOTAL ENVIRONMENT 757(2021).