Print Email Facebook Twitter One-dimensional analysis of salinity intrusion in estuaries Title One-dimensional analysis of salinity intrusion in estuaries Author Sanmuganathan, K. Corporate name TU Delft Project OD Date 1977-04-01 Abstract This report describes a mathematical model that was developed to predict salinity intrusion in estuaries as it is affected by control and abstraction of fresh water. The need for such a model, particularly for estuaries in tropical areas with large variations in fresh water flow, capable of giving satisfactory predictions of salinity movement from limited field data is brought out. The difficulties in using existing mathematical models for such purposes are discussed. The model outlined in this report overcomes these difficulties by relying on an approximate analytical solution of the unsteady one dimensional high water slack mass balance equation. The model relies on estimating the value of the longitudinal dispersion coefficient from field data obtained within a period of about six months. The predictions made for a continuous period of over two years for the Gambia estuary are shown to agree well with observations. The predictions made by the model for salinity movement under different fresh water abstraction and regulation patterns are also presented. Subject salinitysalt intrusiondensity currentslongitudinal dispersionmathematical modelGambia estuarydiffusion Classification TLE250400TLE250200 To reference this document use: http://resolver.tudelft.nl/uuid:5c4cf9af-f0cc-4c25-8693-9881f14a74e5 Publisher HR Wallingford Source Report no. OD/2 Part of collection Hydraulic Engineering Reports Document type report Rights (c) 1977 HR Wallingford Files PDF Sanmuganathan1977.pdf 17.83 MB Close viewer /islandora/object/uuid:5c4cf9af-f0cc-4c25-8693-9881f14a74e5/datastream/OBJ/view