CARACTERISATION DE LA SECHERESSE METEOROLOGIQUE EN CLIMAT SEMI ARIDE : CAS DU BASSIN VERSANT OUED BOUMESSAOUD (NORD OUEST DE L’ALGÉRIE)
Journal Title: Larhyss Journal - Year 2017, Vol 29, Issue 29
Abstract
Northwestern Algeria, like most Mediterranean regions experienced alternating wet and dry periods. In a context where climate change is conjugated news at the impact of human activities on the water overuse, it is essential to analyze the dry spells in various time scales for Prevention of rationalization of water resources. To this end, the rainfall series reconstructed three stations covering the river basin Boumessaoud study were analyzed. The analysis was based on the values of the standardized precipitation index (SPI) calculated for time scales of 10, 35 and 68 years. The results show that medium and long-term periods 1945-1952 and 1978-2010 have experienced significant droughts by intensity, duration and frequency. These dry episodes culminated especially in the early 80s with extremely severe type of drought. The stations Henaya the center of the basin and the Zenata in the far north are the most affected by drought compared to the Tlemcen station located outside near the limit of Southeast Basin.
Authors and Affiliations
BOUGUERRA S. A. | Département d’hydraulique, Faculté de Technologie, Université Abou Bakr Belkaid, Tlemcen, Algérie, BENSLIMANE N. | Département d’hydraulique, Faculté de Technologie, Université Abou Bakr Belkaid, Tlemcen, Algérie
Keywords
Related Articles
- EP ID EP15274
- DOI -
- Views 369
- Downloads 12
ETUDE PHYSICO-CHIMIQUE DES EAUX USEES DE L'UNITE INDUSTRIELLE PAPETIERE (CDM) A SIDI YAHIA EL GHARB (MAROC)
The environmental impact of industrial effluents is now a reality and manifests a serious threat in the medium term for the quality of surface water and groundwater. Like other regions of Morocco, the region of Gharb k...
MODELISATION D’UN ECOULEMENT DIPHASIQUE ERODANT DANS UN MILIEU POREUX CAS DE LA SUFFUSION
Internal erosion is one of the main causes rupture of hydraulic works. It can be developed under form of two basic phenomena: piping erosion and suffusion, they differ in their geometrical and Hydraulic boundary condit...
ETUDE DE LA CINETIQUE D’ADSORPTION DU PHOSPHORE EN SOLUTION SUR LES SEDIMENTS DU LAC FOUARAT AU MAROC
Le présent travail consiste à déterminer la cinétique d’adsorption du phosphore sous forme d’anions orthophosphates sur les sédiments superficiels, prélevés au niveau du lac Fouarat, près des rejets d’eau...
QUALITE ET FACTEURS DE RISQUE DE POLLUTION DES EAUX SOUTERRAINES PERIURBAINES DE LA VILLE DE SEBAA AYOUNE (MEKNES, MAROC)
This study is aims to determine the physico-chemical and bacteriological quality of the well water and other water sources in some suburban districts of the urban municipality Sebaa Ayoune. The choice of the selected s...
ETUDE BACTERIOLOGIQUE COMPARATIVE DU LAC RESERVOIR DU BARRAGE SIDI CHAHED ET SES EFFLUENTS : MEKKES ET MELLAH
Wadis Mellah and Mikéss and on the bacteriological quality of the water dam Sidi Chahed: to determine the contribution of the two wadis supplying this work aims. This study focused on three stations: upstream in Wadi...