Said Kechida, Fares Laouacheria and Lotfi ZEGHADNIA2023-07-092023-07-092023-07-01https://dspace.univ-soukahras.dz/handle/123456789/578Assessment of the combined efects of Manning roughness and DEM resolution for the water surface elevation prediction using the HEC‑RAS model: a case study of Moudjar River in the Northeast of Algeria