干旱区生态环境知识资源中心(Arid): Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria)

Arid

DOI	10.1007/s00704-023-04601-2
	Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria)
	Berhail, Sabri; Katipoglu, Okan Mert
通讯作者	Berhail, S
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2023
卷号	154 期号:3-4 页码:1373-1393
英文摘要	The current research intends to compare the agreement level between the Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI), the former ' s variant, at different timescales such as 1, 3, 6, 9, 12, and 24 months. This data was compiled from the Mekerra basin with the help of time series of rainfall and temperature data for 42 years from 1970 to 2011. The authors used Cohen ' s kappa statistics and the Bland-Altman method to determine the test of agreement between SPI and SPEI. Furthermore, the innovative trend analysis (ITA) method was also employed to analyze the severe and extreme dry trends. The outcomes achieved from the Cohen ' s kappa statistic revealed the presence of a significant level of agreement between the SPI and SPEI values across the timescales. Furthermore, the researchers observed a positive linear correlation (r > 0.75, p < 0.0001) between the ratings under study. The existence of a small mean difference between the Bland and Altman analyses confirmed the level of agreement between the analytical tools under consideration. In addition to these, the outcomes also infer that in case of the unavailability of the temperature data to conduct the SPEI. Therefore, it is acceptable to use the SPI as the current study found the presence of an acceptable degree of agreement between these two scales in the study location. The present study suggests utilizing various types of drought indices to evaluate the drought performance in a specific location or geographical area to make knowledge-driven decisions.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001065798900001
WOS关键词	EVAPOTRANSPIRATION INDEX SPEI ; STANDARDIZED PRECIPITATION INDEX ; METEOROLOGICAL DROUGHT ; AGRICULTURAL DROUGHT ; CLIMATE-CHANGE ; TIME SCALES ; RIVER-BASIN ; AGREEMENT ; MODELS ; COEFFICIENT
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/2XILL650/398909
推荐引用方式 GB/T 7714	Berhail, Sabri,Katipoglu, Okan Mert. Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria)[J],2023,154(3-4):1373-1393.
APA	Berhail, Sabri,&Katipoglu, Okan Mert.(2023).Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria).THEORETICAL AND APPLIED CLIMATOLOGY,154(3-4),1373-1393.
MLA	Berhail, Sabri,et al."Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria)".THEORETICAL AND APPLIED CLIMATOLOGY 154.3-4(2023):1373-1393.