干旱区生态环境知识资源中心(Arid): Spatiotemporal characterization of the annual rainfall variability in the Isser Watershed (Algeria)

Arid

DOI	10.1007/s12517-021-09408-x
	Spatiotemporal characterization of the annual rainfall variability in the Isser Watershed (Algeria)
	Khodja, Malia Benali; Metouchi, Abdenacer; Hallal, Dahbia Djoudar; Khelfi, Mohamed El Amine; Onsoy, Hizir; Toumi, Samir
通讯作者	Khodja, MB (corresponding author)，USTHB, Lab Geoenvironm, Dept Geol, Algiers, Algeria.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2022
卷号	15 期号:2
英文摘要	Wadi Isser watershed (4149 km(2)), located in the North of Algeria, has experienced a significant rainfall variability during the last four decades. In order to characterize this variability and determine its spatial extension, by means of the analysis of the rainfall data measured in twenty-seven (27) stations, the following study was conducted. The analysis of the long rainfall series of the reference stations of Bni Slimane (1920-2014) and Djebahia (1923-2014) through the application of three statistical tests (Pettitt, Buishand and Lee and Heghinian) revealed an episode of low rainfall from 1973 to 2001 for the Djebahia station and from 1975 to 2001 for the Bni Slimane station. This period was characterized by a decrease in annual rainfall varying between 14 and 43%, followed by a rainy phase in the watershed with an increase in annual rainfall (35.8%) at the Khebouzia station. The analysis of the kriged maps, developed by geostatistical modeling of the spatial structure of precipitation (1975-2014), supported and corroborated the results of the statistical tests. Indeed, the spatial interpolation based on decadal averages of rainfall from 1975 to 2014 illustrates a well-contrasted spatial variability for the four decades. The northern part of the watershed is characterized by a higher rainfall than the central and southern parts of the watershed. In the light of the results obtained by applying the two approaches mentioned above, a decreasing trend in rainfall is clearly evident from the beginning of the decade 1985-1994. A double rainfall gradient is highlighted with an increase in rainfall from east to west and from north to south. At the same time, there was a surplus towards the end of the third decade and the fourth decade. A return of precipitation is thus highlighted as well as the different breaks in the series. Through this research, the statistical study and the geostatistical mapping have enabled the elaboration of a relevant tool for decision support to the managers in the field of environment and hydraulics, in a general way, and in a context of global warming. In fact, it will allow them to better understand the developments of wadis, the integrated management of water resources in order to guarantee current and future needs for drinking, industrial, and agricultural water in this semi-arid region.
英文关键词	Isser Watershed Rainfall Variability Evolution Break Geostatistical approach Kriging
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000743972500002
WOS关键词	SHIFT
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/2XILL650/376780
作者单位	[Khodja, Malia Benali; Metouchi, Abdenacer] USTHB, Lab Geoenvironm, Dept Geol, Algiers, Algeria; [Hallal, Dahbia Djoudar] ENSH, Water Resources Mobilizat & Evaluat Lab, Soumaa, Blida, Algeria; [Khelfi, Mohamed El Amine] Univ Saad Dahlab, Blida, Algeria; [Onsoy, Hizir] Karadeniz Tech Univ, Fac Engn, Dept Civil Engn, TR-61080 Trabzon, Turkey; [Toumi, Samir] ENSH, Water & Environm Engn Lab, Soumaa, Blida, Algeria
推荐引用方式 GB/T 7714	Khodja, Malia Benali,Metouchi, Abdenacer,Hallal, Dahbia Djoudar,et al. Spatiotemporal characterization of the annual rainfall variability in the Isser Watershed (Algeria)[J],2022,15(2).
APA	Khodja, Malia Benali,Metouchi, Abdenacer,Hallal, Dahbia Djoudar,Khelfi, Mohamed El Amine,Onsoy, Hizir,&Toumi, Samir.(2022).Spatiotemporal characterization of the annual rainfall variability in the Isser Watershed (Algeria).ARABIAN JOURNAL OF GEOSCIENCES,15(2).
MLA	Khodja, Malia Benali,et al."Spatiotemporal characterization of the annual rainfall variability in the Isser Watershed (Algeria)".ARABIAN JOURNAL OF GEOSCIENCES 15.2(2022).