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1. SCHISM in SMS


'''SCHISM in SMS'''
The Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) is a powerful open-source modeling system for simulating 3D baroclinic circulation and transport in estuarine, riverine, and coastal environments. Within the Surface-water Modeling System (SMS), SCHISM integrates with a user-friendly GUI to enable efficient pre- and post-processing.


'''Introduction'''
This manual aims to guide users through SCHISM's interface in SMS, including model controls, menu options, and boundary coverage setup.


SCHISM (Semi-implicit Cross-scale Hydroscience Integrated System Model) is a powerful hydrodynamic model designed for simulating coastal and estuarine dynamics. It is widely used for applications such as:
2. Model Control Overview
*Coastal and estuarine hydrodynamics.
*Sediment transport modeling.
*Water quality simulations.
*Storm surge and tidal analysis.


SCHISM is integrated into SMS (Surface-water Modeling System), allowing users to build, run, and visualize simulations within an intuitive graphical interface.
The SCHISM model control in SMS is divided into four major sections:


'''Model Controls and Interface'''
2.1 General


Accessing SCHISM in SMS
This tab defines global settings for the simulation such as start time, end time, time step, and coordinate system.
*Open SMS and create a new project.
*Import or create a computational grid suitable for SCHISM.
*Assign SCHISM as the active model within the Model Selection menu.


'''Key Menus and Tools'''
2.2 Time Control
*Project Explorer: Displays SCHISM-related files, model settings, and simulation results.
*Model Control Panel: Allows users to define simulation parameters such as time steps, boundary conditions, and solver settings.
*Mesh Tools: Provides options for refining the model grid and defining computational nodes.
*Simulation Run Manager: Used to launch and monitor SCHISM simulations.


'''Setting Up a SCHISM Simulation'''
Time stepping schemes and control parameters are configured here. Options include:
*Import a bathymetric dataset and generate a model grid.
 
*Assign boundary conditions (e.g., open boundaries, river inflows, tidal forcing).
Start Time
*Configure model parameters in the SCHISM control settings.
 
*Run the simulation and review output files within SMS.
End Time
 
Time Step
 
Output Interval
 
2.3 Output Options
 
Defines what model outputs are written and at what frequency. Users can select among water surface elevation, salinity, velocity, and other scalar/vector outputs.
 
2.4 Numerical Parameters
 
Advanced settings related to solver behavior, such as vertical layer configuration, baroclinic settings, and stabilization parameters.
 
Refer to the SCHISM documentation for a detailed description of each parameter available in the dialogs.
 
Tables and annotated screenshots will be provided for each section in future drafts to support navigation and understanding.
 
3. Coverage and Model Setup
 
3.1 SCHISM Coverages
 
Coverages in SCHISM are used to define physical domains and assign model parameters. SMS allows the creation of coverages that control boundary conditions, material properties, and source/sink information.
 
Types of coverages:
 
Boundary Conditions Coverage – defines open and land boundaries, elevation or flow time series.
 
Arc Properties – used to assign conditions such as tidal boundaries or river inflows.
 
These coverages appear as layers in the Project Explorer. Arcs, nodes, and polygons each have specific roles. For instance, arcs can represent channel edges, and their properties can be edited for boundary settings.
 
3.2 Working with Arc Properties
 
Arc attributes control how boundaries behave. Users can right-click arcs within the boundary conditions coverage to:
 
Set boundary condition type (e.g., elevation, normal flow)
 
Assign time series
 
Set value options (e.g., constant, transient)

Revision as of 19:50, 8 April 2025

1. SCHISM in SMS

The Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) is a powerful open-source modeling system for simulating 3D baroclinic circulation and transport in estuarine, riverine, and coastal environments. Within the Surface-water Modeling System (SMS), SCHISM integrates with a user-friendly GUI to enable efficient pre- and post-processing.

This manual aims to guide users through SCHISM's interface in SMS, including model controls, menu options, and boundary coverage setup.

2. Model Control Overview

The SCHISM model control in SMS is divided into four major sections:

2.1 General

This tab defines global settings for the simulation such as start time, end time, time step, and coordinate system.

2.2 Time Control

Time stepping schemes and control parameters are configured here. Options include:

Start Time

End Time

Time Step

Output Interval

2.3 Output Options

Defines what model outputs are written and at what frequency. Users can select among water surface elevation, salinity, velocity, and other scalar/vector outputs.

2.4 Numerical Parameters

Advanced settings related to solver behavior, such as vertical layer configuration, baroclinic settings, and stabilization parameters.

Refer to the SCHISM documentation for a detailed description of each parameter available in the dialogs.

Tables and annotated screenshots will be provided for each section in future drafts to support navigation and understanding.

3. Coverage and Model Setup

3.1 SCHISM Coverages

Coverages in SCHISM are used to define physical domains and assign model parameters. SMS allows the creation of coverages that control boundary conditions, material properties, and source/sink information.

Types of coverages:

Boundary Conditions Coverage – defines open and land boundaries, elevation or flow time series.

Arc Properties – used to assign conditions such as tidal boundaries or river inflows.

These coverages appear as layers in the Project Explorer. Arcs, nodes, and polygons each have specific roles. For instance, arcs can represent channel edges, and their properties can be edited for boundary settings.

3.2 Working with Arc Properties

Arc attributes control how boundaries behave. Users can right-click arcs within the boundary conditions coverage to:

Set boundary condition type (e.g., elevation, normal flow)

Assign time series

Set value options (e.g., constant, transient)

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