干旱区生态环境知识资源中心(Arid): Spatial assessment of drought features over different climates and seasons across Iran

Arid

DOI	10.1007/s00704-021-03853-0
	Spatial assessment of drought features over different climates and seasons across Iran
	Sharafi, Saeed; Ghaleni, Mehdi Mohammadi
通讯作者	Sharafi, S (corresponding author), Arak Univ, Dept Environm Sci & Engn, Arak, Iran.
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2022
英文摘要	Drought is one of the most complex phenomena in the world; so, proper management is very important in monitoring and reducing its damage. For this purpose, Standard Precipitation Index (SPI), Standardized Precipitation Evapotranspiration Index (SPEI), and Reconnaissance Drought Index (RDI) indices were used to analyze the intensity and frequency of drought in the coastal wet, mountain, semi-mountain, semi-desert, desert, and coastal desert climates of Iran in four seasons, separately: autumn, winter, spring, and summer. Forty-three synoptic stations with a common statistical period of 50 years (1969-2019) were selected. The results showed that the trend of drought in winter and summer is increasing in all studied climates. The comparison of the results in the trend analysis of the drought showed the same trend, but the SPEI index compared to the other indicators showed a quicker response to changes in drier climates. The highest correlation (0.80-0.99) between SPI-RDI and SPEI-RDI indices in coastal desert, mountain, and semi-mountain climates and the lowest correlation (0.34) between SPI-SPEI and SPEI-RDI indices in semi-desert, desert, and coastal desert climates were obtained. SPI-RDI variations showed similar values in colder climates. The SPEI is based on precipitation and temperature data, and it has the advantage of combining multi-scalar character with the capacity to include the effects of temperature variability in the drought assessment. Thus, SPEI is recommended as a suitable index for studying and identifying the effect of climate change on drought conditions.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000721669000003
WOS关键词	POTENTIAL EVAPOTRANSPIRATION ; INDEX ; TRENDS ; PRECIPITATION ; VEGETATION ; STREAMFLOW ; DATASETS ; RIVER
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374623
作者单位	[Sharafi, Saeed] Arak Univ, Dept Environm Sci & Engn, Arak, Iran; [Ghaleni, Mehdi Mohammadi] Arak Univ, Dept Water Sci & Engn, Arak, Iran
推荐引用方式 GB/T 7714	Sharafi, Saeed,Ghaleni, Mehdi Mohammadi. Spatial assessment of drought features over different climates and seasons across Iran[J],2022.
APA	Sharafi, Saeed,&Ghaleni, Mehdi Mohammadi.(2022).Spatial assessment of drought features over different climates and seasons across Iran.THEORETICAL AND APPLIED CLIMATOLOGY.
MLA	Sharafi, Saeed,et al."Spatial assessment of drought features over different climates and seasons across Iran".THEORETICAL AND APPLIED CLIMATOLOGY (2022).