8.2 Sediment

8.2.1 Command Status

Required.

8.2.2 Description

A range of models are available to support simulation of sediment movement and potentially its impact on hydrodynamics via baroclinic (density driven) processes. Sediment simulation is activated using the Include Sediment command.

Supported sediment model implementations are summarised in Table 8.1, with links to the relevant implementation sections below. Commands are listed in Table 8.2.

Table 8.1: Sediment Implementations

Model Implementation	Description
None	Disables sediment simulation.
Barotropic	Simulates sediment as a passive tracer without density feedback.
Baroclinic	Simulates sediment with density coupling (baroclinic effects).

Table 8.2: Sediment Commands

Command	Description
Include Sediment	Optional - Activates sediment simulation and optionally density coupling using active and baroclinic flags.

8.2.3 None

This model is the default and excludes the simulation of sediment.

! Sediment Disabled
Include Sediment == 0, 0 ! {0} OFF | 1 ON, {0} Density coupling disabled | 1 Density coupling enabled

8.2.4 Barotropic

This model includes the simulation of sediment as a passive tracer.

! Sediment Barotropic Model
Include Sediment == 1, 0 ! {0} OFF | 1 ON, {0} Density coupling disabled | 1 Density coupling enabled

8.2.5 Baroclinic

This model includes the simulation of sediment and has it contribute to density calculations.

! Sediment Baroclinic Model
Include Sediment == 1, 1 ! {0} OFF | 1 ON, {0} Density coupling disabled | 1 Density coupling enabled