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An example schematic workflow for ERDC's CSTORM-MS.
Event Simulations for Accurate Risk Assessment
Most existing coastal storm modeling systems focus on developing effective empirical tuning methods for optimizing calibration. This works well for operational systems but does not address the critical needs for advancing modeling technology. A robust, standardized approach to more accurately establishing the risk of coastal communities to future occurrences of storm events is required.
Through focused research and a spiral development strategy, engineers at the ERDC Coastal and Hydraulics Laboratory (CHL) have produced the Coastal Storm Modeling System (CSTORM-MS)—a comprehensive system of highly skilled and highly resolved models used to simulate coastal storms and accurately assess risk to coastal communities. With physics-based modeling capabilities, CSTORM-MS integrates a suite of high fidelity storm modeling tools to support a wide range of coastal engineering needs for simulating the following:
CSTORM-MS more rigorously represents the underlying physical processes than existing coastal storm modeling systems. It does not have to adjust or tune coefficients to produce realistic results, reducing dependency on empirical tuning factors. Through its powerful and user-friendly interface, CSTORM-MS configures models that are more generally applicable and required for accurate risk assessment of coastal storm than existing systems.
CHL engineers designed CSTORM-MS to be both expandable and upgradable. With the aid of new graphical user interfaces (GUI) in the Surface-water Modeling System (SMS), CSTORM-MS provides the following:
In addition to improved physical responses, using ESMF standards allows for an almost “plug-n-play” capability for models. This allows different models to be applied within the present system, and the system can be expanded to include new capabilities, such as environmental models, for future applications.
The new GUI work flow system and tightly coupled models represent an enabling technology for more comprehensive studies on flood and shore protection and sediment management, helping to reduce human errors that happen when executing multi-step modeling processes.
By making use of the ESMF standards and ensuring the individual models and the CSTORM coupler itself are ESMF compliant means that the system can be readily used for multiple agency modeling needs. The spiral development approach allows for end users to continually have access to a robust set of tools even while future components are being developed and incorporated into the system.
CSTORM-MS technologies have been successfully applied to many projects over the last few years, including storm modeling and flood mapping support for the following:
To provide realistic coastal storm simulations, CSTORM-MS requires the integration of the following complex numerical models:
Circulation and Storm Surge
Test and Evaluation
See the CSTORM-MS Features Web page for full details.
The focus of spiral three will concentrate on waves with the development of a new time-stepping unstructured wave model (TSWAVE). The new model represents an effort for advancement of both deepwater and nearshore wave modeling technology to include consistently scaled, spectral source terms and the ability to accurately conform to complicated coastlines and coastal structures. This new unstructured wave model will still have the ability to run on a different mesh than the hydrodynamic mesh in order to allow for proper and optimal resolution of each model without having to over resolve one for the other.
For more information about CSTORM-MS, please visit CHL or read ASCE 2011 Solutions to Coastal Disasters Conference paper (log-in required).
Questions about CSTORM-MS?
ERDC Points of Contact
Contact: Chris Massey