干旱区生态环境知识资源中心(Arid): Analysis of meteorological drought sequences at various timescales in semi-arid climate: case of the Cheliff watershed (northwest of Algeria)

Arid

DOI	10.1007/s12517-020-5256-5
	Analysis of meteorological drought sequences at various timescales in semi-arid climate: case of the Cheliff watershed (northwest of Algeria)
	Hallouz, Faiza 1,2; Meddi, Mohamed 1; Mahe, Gil 3; Rahmani, Salaheddine Ali 4; Karahacane, Hafsa 1,2; Brahimi, Samiha 2
通讯作者	Hallouz, Faiza
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:6
英文摘要	The decrease in rainfall and the decrease in rainy days are also accompanied by a poor distribution of rainfall especially during the period of growth of the rain crops which usually extends from October to May. The Cheliff is under the influence of a semi-arid climate with precipitation that ranges from about 600 mm year(-1) to the northeast and 300 mm year(-1) to the west and south of the basin. The daily rainfall data used in this study concern eleven stations covering varying periods representative of different rainfall regimes in the Cheliff basin. The results obtained showed that the monthly dry sequences encountered during the rainy season decrease when the number of dry days increases, and the maximum values have been observed for the number of 1 to 7 consecutive dry days and the values were observed for a number greater than or equal to 21 consecutive dry days. It is important to say that the month of February recorded the lowest value of consecutive dry days for all stations. Also, the western stations of the study area display the largest values of the lengths of the dry sequences. Most of the stations are more correlated with the MO and AMO climatic indices than the other indices. These are the stations located west of the study area that are strongly correlated with AMO. It also appears that the total number of dry days of the stations located west of the study area is negatively correlated with SOI.
英文关键词	Drought Climate change Cheliff Sequences Climatic indices Correlation Algeria
类型	Article
语种	英语
国家	Algeria ; France
收录类别	SCI-E
WOS记录号	WOS:000521976100001
WOS关键词	PRECIPITATION VARIABILITY ; SPRING PRECIPITATION ; ATLANTIC OSCILLATION ; DRY SPELLS ; RAINFALL ; EVOLUTION ; WEST
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314090
作者单位	1.ENSH, Lab Genie Eau & Evironm, Blida, Algeria; 2.Univ Djilali BOUNAAMA Khemis Miliana, Khemis Miliana, Ain Della, Algeria; 3.IRD, Hydrosci Montpellier, Montpellier, France; 4.Univ Sci Technol Houari Boumediene, Geoenvironm Lab FSTGAT, Algiers, Algeria
推荐引用方式 GB/T 7714	Hallouz, Faiza,Meddi, Mohamed,Mahe, Gil,et al. Analysis of meteorological drought sequences at various timescales in semi-arid climate: case of the Cheliff watershed (northwest of Algeria)[J]. French National Research Institute for Sustainable Development,2020,13(6).
APA	Hallouz, Faiza,Meddi, Mohamed,Mahe, Gil,Rahmani, Salaheddine Ali,Karahacane, Hafsa,&Brahimi, Samiha.(2020).Analysis of meteorological drought sequences at various timescales in semi-arid climate: case of the Cheliff watershed (northwest of Algeria).ARABIAN JOURNAL OF GEOSCIENCES,13(6).
MLA	Hallouz, Faiza,et al."Analysis of meteorological drought sequences at various timescales in semi-arid climate: case of the Cheliff watershed (northwest of Algeria)".ARABIAN JOURNAL OF GEOSCIENCES 13.6(2020).