干旱区生态环境知识资源中心(Arid): Comparison of various drought indices for assessing drought status of the Northern Mekerra watershed, Northwest of Algeria

Arid

DOI	10.1007/s12517-021-07269-y
	Comparison of various drought indices for assessing drought status of the Northern Mekerra watershed, Northwest of Algeria
	Elhoussaoui, Abdelghani; Zaagane, Mansour; Benaabidate, Lahcen
通讯作者	Elhoussaoui, A (corresponding author), Univ Mascara, Lab Res Biol Syst & Geomat, Mascara, Algeria.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:10
英文摘要	Drought is a slow-onset, creeping natural hazard and a recurrent phenomenon in the arid and semi-arid region of the Mekerra watershed. Numerous drought indices have been used in different countries to implement drought mapping and monitoring of water resources management. This investigation proves meteorological drought index combined with remote sensing drought index, but had unsteady spatial and temporal variation.The results highlight that droughts occur in semi-arid climatic region of Sidi Bel Abbes at the Northern part of the watershed. The various drought indices differ in their detection and classification of this extreme climatic event in the study area. There is high correlation (r>0.68) among the eight indices, with PD (Precipitation deciles), DI (Deciles Index), and PNI (Percent of Normal Index) showing the highest relationship to SPI (r=0.95 and r=0.99 respectively). The differences observed among the drought indices in detecting drought events in the study area can be reduced by using multiple drought indices in addition to the use of SPI (Standardized Precipitation Index) in drought assessments especially at the area of Sidi Bel Abbes since technological advancement in drought monitoring software's has made it easier. In addition, it is worthwhile to investigate on why drought detection varies with indices. Furthermore, considering the advantages and disadvantages of the mentioned drought predictors in this study area will enhance the understanding of vegetation responses to drought threatens.
英文关键词	Drought index Semi-arid Mekerra Algeria
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000675223000009
WOS关键词	SEMIARID REGION ; QUANTIFICATION ; SEVERITY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362514
作者单位	[Elhoussaoui, Abdelghani; Zaagane, Mansour] Univ Mascara, Lab Res Biol Syst & Geomat, Mascara, Algeria; [Benaabidate, Lahcen] Univ Sidi Mohammed Ben Abdellah, Lab Funct Ecol & Environm Engn, Fes, Morocco
推荐引用方式 GB/T 7714	Elhoussaoui, Abdelghani,Zaagane, Mansour,Benaabidate, Lahcen. Comparison of various drought indices for assessing drought status of the Northern Mekerra watershed, Northwest of Algeria[J],2021,14(10).
APA	Elhoussaoui, Abdelghani,Zaagane, Mansour,&Benaabidate, Lahcen.(2021).Comparison of various drought indices for assessing drought status of the Northern Mekerra watershed, Northwest of Algeria.ARABIAN JOURNAL OF GEOSCIENCES,14(10).
MLA	Elhoussaoui, Abdelghani,et al."Comparison of various drought indices for assessing drought status of the Northern Mekerra watershed, Northwest of Algeria".ARABIAN JOURNAL OF GEOSCIENCES 14.10(2021).