SMS:Fate Menu
From XMS Wiki - http://wikis.aquaveo.com/xms/
Contents |
Graphical Interface
The interface can be broken down into tools and options for three categories. These categories include the placement region, equipment, and dredged material attributes. The options that comprise each of the categories are listed below.
Placement region attributes:
- Location, resolution, size and orientation of the placement grid.
- Ambient currents and bathymetric properties.
- Location of dumping site.
- Local water densities.
Equipment attributes:
- Vessel size and draft.
- Bin size.
- Vessel speed and direction.
Dredged material attributes:
- Composition (percentages of materials, particle sizes and velocities, void ratios, etc.).
- Material density.
- Volume of material load.
- Contaminant concentration level.
FATE Models
The FATE interface can be used with two similar models that both deal with the placement of dredged materials.
STFate
Models water quality/sediment concentrations for single placements for regulatory compliance.
MPFate
Models multiple placements to predict final bathymetry in a placement area.
MK Placement
Assists the user in developing placement scenarios for MPFATE.
FATE Model Menu
The FATE model menu can be accessed by creating a placement region and activating the Cartesian Grid module. The following are summaries of the available accessible options from this menu.
- Model Control - The following table describes the different tabs of the Model Control dialog and the options available on each tab
| Tab | Functionality |
|---|---|
| General | Specify run type, simulation time and time step length, bottom roughness coefficient |
| Coefficients | Define simulation coefficients (usually the default values are sufficient) |
| Water Density | Enter water density values for the entire depth of the placement region (densities can be calculated using salinity and temperature input) |
| Tracer/Constituent | Describe a constituent (or contaminant) and its properties |
| Output | Set times and depths at which results should be written for |
| Current | Define direction and magnitudes of velocities of the placement region currents |
- Placements - Give the location, vessel direction and speed, and time for placement operation.
- Loading - Define the layers of placement materials and sediment composition of each layer.
- Vessel - Select or define the vessel being used in the operation.
- Sediments - Provide attributes of the various sediments which make up the placement material.
- Run Fate - Launches the STFate model using the active simulation input files.
All input data found in these dialogs and tabs are summarized by the STFate model in the *.due file created at the beginning of a successful simulation run. The *.due file is the standard input file for the STFate model executable.
Placement Regions/Disposal Sites
A placement region or disposal site is created in two steps. First, the Map Module is used to create the domain of the desired region as a 2-D grid frame. Then, the domain is mapped to a 2D cartesian grid so the attributes of the placement region can be specified.
How to Create a Placement Region
To create the disposal site or placement region, first, make sure the Map Module is active. Now, create a new coverage in the Project Explorer. Change the coverage type to FATE by right-clicking on the coverage and selecting FATE from the Type option. From the toolbar, select the 2-D Grid Frame tool and click out a 2D grid frame. Next, select Feature Objects | Map -> 2D Grid. The Map -> 2D Grid dialog will appear. Here, the size and angle of the grid can be changed along with the bathymetric and current properties associated with the region.
Compliance Reports
SMS can output compliance reports for STFate simulation runs. These reports specify whether the material concentrations are below a specified threshold. For more information visit STFate Compliance Reports.
