This dialog box allows the user to define the turbulence/friction properties and 3-D layer data.

The upper table is used for the turbulence/friction properties. For each element type the user must define:

1 The horizontal eddy coefficient. Actual number entered depends on the horizontal turbulence method used (see user instructions)

2 The vertical eddy coefficient

3 The horizontal diffusion coefficient. Not shown on the page but is an additional column on the right hand side

4 The vertical diffusion coefficient

5 The Manning/Chezy coefficient. Manning coefficient assumed if entry less that 1.0, other assumed to Chezy method.

6 The scaling factor for friction applied as water surface falls below the bed level (only used when marshing Is active).

7 The bank friction factor (optional). Not shown on the page but is an additional column on the right hand side.

8 The water surface friction factor (optional, only applicable) when the system has a blanket on the water surface). Not shown on the page but is an additional column on the right hand side