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DOI	10.1016/j.wse.2020.05.001
	Comparative evaluation of impacts of climate change and droughts on river flow vulnerability in Iran
	Noorisameleh, Zahra; Khaledi, Shahriar; Shakiba, Alireza; Firouzabadi, Parviz Zeaiean; Gough, William A.; Mirza, M. Monirul Qader
通讯作者	Khaledi, S (corresponding author), Shahid Beheshti Univ, Fac Earth Sci, Tehran 1983969411, Iran.
来源期刊	WATER SCIENCE AND ENGINEERING
ISSN	1674-2370
EISSN	2405-8106
出版年	2020
卷号	13 期号:4 页码:265-274
英文摘要	Rivers in arid and semi-arid regions are threatened by droughts and climate change. This study focused on a comparative evaluation of the impacts of climate change and droughts on the vulnerability of river flows in three basins with diverse climates in Iran. The standardized precipitation-evapotranspiration index (SPEI) and precipitation effectiveness variables (PEVs) extracted from the conjunctive precipitation effectiveness index (CPEI) were used to analyze the drought severity. To investigate hydrological droughts in the basins, the normalized difference water index (NDWI) and the streamflow drought index (SDI) were calculated and compared. The effects of droughts were assessed under various representative concentration pathway (RCP) scenarios. Changes in the number of wet days and precipitation depth restricted hydrological droughts, whereas an increasing number of dry days amplified their severity. The projected increases in dry days and precipitation over short durations throughout a year under future climate scenarios would produce changes in drought and flood periods and ultimately impact the frequency and severity of hydrological droughts. Under RCP 4.5, an increase in the frequencies of moderate and severe meteorological/hydrological droughts would further affect the Central Desert Basin. Under RCPs 2.6 and 8.5, the frequencies of severe and extreme droughts would increase, but the drought area would be smaller than that under RCP 4.5, demonstrating less severe drought conditions. Due to the shallow depths of most rivers, SDI was found to be more feasible than NDWI in detecting hydrological droughts. (c) 2020 Hohai University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
英文关键词	Climate change River flow Precipitation Drought index Standardized precipitation-evapotranspiration index Iran
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000612027800002
WOS关键词	WATER-RESOURCES ; MANAGEMENT
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352716
作者单位	[Noorisameleh, Zahra; Khaledi, Shahriar; Shakiba, Alireza] Shahid Beheshti Univ, Fac Earth Sci, Tehran 1983969411, Iran; [Noorisameleh, Zahra; Gough, William A.; Mirza, M. Monirul Qader] Univ Toronto Scarborough, Dept Phys & Environm Sci, Toronto, ON M1C 1A4, Canada; [Firouzabadi, Parviz Zeaiean] Kharazmi Univ, Fac Geog Sci, Tehran 1571914911, Iran
推荐引用方式 GB/T 7714	Noorisameleh, Zahra,Khaledi, Shahriar,Shakiba, Alireza,et al. Comparative evaluation of impacts of climate change and droughts on river flow vulnerability in Iran[J],2020,13(4):265-274.
APA	Noorisameleh, Zahra,Khaledi, Shahriar,Shakiba, Alireza,Firouzabadi, Parviz Zeaiean,Gough, William A.,&Mirza, M. Monirul Qader.(2020).Comparative evaluation of impacts of climate change and droughts on river flow vulnerability in Iran.WATER SCIENCE AND ENGINEERING,13(4),265-274.
MLA	Noorisameleh, Zahra,et al."Comparative evaluation of impacts of climate change and droughts on river flow vulnerability in Iran".WATER SCIENCE AND ENGINEERING 13.4(2020):265-274.