干旱区生态环境知识资源中心(Arid): Identification of rainfall onset for meteorological use regarding to region in the Algerian highlands

Arid

DOI	10.15421/111912
	Identification of rainfall onset for meteorological use regarding to region in the Algerian highlands
	Benaichata, Lazreg; Houari, Mahmoud; Maatoug, Mhamed; Azzaoui, Mohamed; Khadidja, Naceur
通讯作者	Benaichata, L
来源期刊	JOURNAL OF GEOLOGY GEOGRAPHY AND GEOECOLOGY
ISSN	2313-2159
EISSN	2409-9864
出版年	2019
卷号	28 期号:1 页码:106-113
英文摘要	The data from several weather stations in Western Algeria show a semi-arid climate during last decades. The entire study region showed a great variability in the occurrences of the first and second rainy days in the year. This variability is associated with a positive trend, showing a continuous increasing aridity in the south Mediterranean and the late arrival of the rainy season is well marked. The rainy season in the north of Algeria, spreads from September to June. The origin of the rains differ according to the seasons. The rainfall from June to October is of localized stormy origin, whereas in winter, the rainfall comes from the classical atmospherically perturbations arriving from North or North West. This work objective was to give a definition of the rainy season onset and to show its inter - annual variability according to the Nino and Nina years. The El - Nino phenomenon by its positive and negative phases seems to affect the start of the rainy season. The variability of the rainfall onset indices is very significant. There is a relative stability of the rainy season length over the long term period. A significant delay in the precipitation onset was observed during certain years. A method to define rainy season onset based on daily rainfall data from a weather station in the Algerian highlands was proposed. This approach is based on a climatic point of view, using a frequency analysis of precipitation and dates of their first occurrence. It delays the first heavy rain day (20 mm) when La - Nina settles. If EL-Nino settles, the first heavy rain (20 mm) day will be earlier. These results will improve the probabilistic forecasts of the beginning of the rainy seasons, the cessation as well as the lengths. This work is a preliminary confirmation that the El-Nino phenomenon really affects the Mediterranean climate.
英文关键词	meteorology weather El-Nino rainfall forecast
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	ESCI
WOS记录号	WOS:000465427000012
WOS关键词	SEA-SURFACE TEMPERATURE ; EL-NINO ; GROWING-SEASON ; RAINY-SEASON ; START ; MONSOON
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/2XILL650/333504
作者单位	[Benaichata, Lazreg; Maatoug, Mhamed; Khadidja, Naceur] Ibn Khaldoun Univ, BPP78, Zaaroura 14000, Tiaret, Algeria; [Houari, Mahmoud] Natl Off Meteorol, Oran, Algeria; [Azzaoui, Mohamed] Higher Agron Sch Mostaganem, Kharouba Mostaganem 27000, Algeria
推荐引用方式 GB/T 7714	Benaichata, Lazreg,Houari, Mahmoud,Maatoug, Mhamed,et al. Identification of rainfall onset for meteorological use regarding to region in the Algerian highlands[J],2019,28(1):106-113.
APA	Benaichata, Lazreg,Houari, Mahmoud,Maatoug, Mhamed,Azzaoui, Mohamed,&Khadidja, Naceur.(2019).Identification of rainfall onset for meteorological use regarding to region in the Algerian highlands.JOURNAL OF GEOLOGY GEOGRAPHY AND GEOECOLOGY,28(1),106-113.
MLA	Benaichata, Lazreg,et al."Identification of rainfall onset for meteorological use regarding to region in the Algerian highlands".JOURNAL OF GEOLOGY GEOGRAPHY AND GEOECOLOGY 28.1(2019):106-113.