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Example ADCIRC meshes showing resolution details and bathymetry.
Simulations for Storm Water Management
The US Army Corps of Engineers (USACE) is responsible for the design, modification, operation, and maintenance of Federal inlet navigation channels, jetties, and associated waterways. Prediction of potential storm surge water levels is critical in the design of flood and storm damage reduction projects and protection of facilities and infrastructure and beneficial to planning and evacuation of low-lying areas if a storm event occurs. Comprehensive models of hydrodynamic simulations can support operations and maintenance and help minimize dredging, maintain channel reliability, manage inlet and adjacent beach sediment, and predict navigation project performance.
To predict storm surge water level and help control the impact of storm damage, experts in hydrodynamic engineering at the ERDC Coastal and Hydraulics Laboratory (CHL) helped to develop the ADvanced CIRCulation Model (ADCIRC). Certified by the Federal Emergency Management Agency (FEMA) for use in performing storm surge analyses, ADCIRC is a hydrodynamic modeling technology that conducts short- and long-term simulations of tide and storm surge elevations and velocities in deep-ocean, continental shelves, coastal seas, and small-scale estuarine systems.
In a single simulation, ADCIRC can provide tide and storm surge elevations and velocities corresponding to each node over a very large domain, encompassing regional domains such as the western North Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico.
Typical ADCIRC applications include the following:
ADCIRC is a finite element, time-dependent, long wave, hydrodynamic circulation numerical model for the simulation of water level and current over an unstructured gridded domain. ADCIRC maintains both accuracy and robustness when applied to the wide range of scales of motion and wide range of hydrodynamic balances that exist when computing deep-ocean flows that transition to flows in inlets, floodplains, and rivers.
As an unstructured coastal ocean circulation model used to compute surface water elevation and currents, ADCIRC runs as a two-dimensional depth integrated (2DDI) model or as a three-dimensional (3D) model to solve time-dependent, free surface circulation and transport problems. The use of an unstructured grid allows for high localized grid resolution where solution gradients are large and low grid resolution where solution gradients are small, minimizing both local and global error norms for a given computational cost.
ADCIRC simulates tidal circulation and storm surge propagation over large computational domains, eliminating the need for imposing approximate open-water boundary conditions that can create inaccuracies in model results, while simultaneously providing high resolution in areas of complex shoreline and bathymetry where it is needed to maximize simulation accuracy.
Targeted areas for ADCIRC application include continental shelves, nearshore coastal areas, inlets and estuaries. ADCIRC also includes these features:
ADCIRC has been successfully used in numerous high profile projects. Some recent applications include the following:
ADCIRC is a highly developed computer program for solving the equations of motion for a moving fluid on a rotating earth. These equations have been formulated using the traditional hydrostatic pressure and Boussinesq approximations and have been discretized in space using the finite element method and in time using the finite difference method.
For more information about ADCIRC, including documentation, training, and support, visit adcirc.org.
ERDC Points of Contact
Questions about ADCIRC?
Contact: Chris Massey