DETERMINATION DU RUISSELLEMENT DANS LE BASSIN VERSANT SIGUS PAR LA METHODE DU SCS-CN À L’AIDE D’UN SYSTÈME D’INFORMATION GÉOGRAPHIQUE
Journal Title: Larhyss Journal - Year 2016, Vol 27, Issue 27
Abstract
Runoff is a complex phenomenon with harmful consequences such as floods and erosion. In order to better determine the hydrological behavior and areas with maximum flow producing in Sigus watershed, the present work focus on determination of the runoff coefficient by the SCS-CN method using the HECGeoHMS software. First, the creation of landuse and soils type databases under a GIS (ArcGIS). Then, assembling, data processing and simulation. Finally, results interpretation. The results indicate that the most favorable runoff areas are those with soil type '' Clay ''and landuse ''Rocky Land ''.The study shows that for extreme rainfall events, runoff coefficient is very high.
Authors and Affiliations
FAREGH W. | Laboratoire de Recherche en Hydraulique Souterraine et de Surface, LARHYSS Département de Génie civil et d'Hydraulique Université de Biskra, B.P. 145, R.P., 07000, Biskra, Algérie, BENKHALED A. | Laboratoire de Recherche en Hydraulique Souterraine et de Surface, LARHYSS Département de Génie civil et d'Hydraulique Université de Biskra, B.P. 145, R.P., 07000, Biskra, Algérie
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