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In the Grid Cell Options frame there are two options: the user can select either All Grid Cells or Only Grid Cells Inside Polygons to limit the application of the change.
All Grid Cells: All grid cells
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in the
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model domain will be assigned from a sediment core file
Only Grid Cells Inside Polygons: Only grid cells inside polygons will be assigned from a sediment core file, this option also can be used when the user wants to assign bed IC for different grid zones.
In the Initialization of Sediment Beds frame, there are three options for initialization of sediment bed as : Use Polygon DSM, Use Sediment Core with Grainsize, and Create Uniform Bed. The should user selects select the Use Sediment Core with Grainsize option, then browse to the their sediment core files (*.dat) which is created before. How . The way to create the sediment core file is describe in Sediment Bed Construction.
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