Numerical Models Meeting the Minimum Requirement of NFIP
Current Nationally Accepted Coastal Models
- Coastal Models
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- Locally Accepted Models
- Numerical Models No Longer Accepted
Coastal Models
| PROGRAM | DEVELOPED BY | AVAILABLE FROM | COMMENTS |
|---|---|---|---|
| Coastal Storm Surges | |||
| FEMA Surge (1988) | Tetra Tech, Inc.; Engineering Methods & Applications; Greenhorne & O'Mara; Camp, Dresser & McKee, Inc. | The Mod Team 3601 Eisenhower Avenue Alexandria, VA 22304 |
Incorporates modified NWS-23 model for hurricanes and Joint Probability Method. Reportedly more accurate for water elevations than water currents. Public Domain: Yes |
| Advanced Circulation Model (ADCIRC) 2DDI (2003) |
Johannes Westerink, University of Notre Dame and Rick Luettich, University of North Carolina at Chapel Hill, Institute of Marine Sciences for USACE Coastal and Hydraulics Laboratory | Nick Krauss Coastal and Hydraulics Laboratory 3909 Halls Ferry Road Vicksburg, MS 39180-6199 Also can be purchased from software vendors as a component of SWM. |
Finite element 2-D hydrodynamic model; the version 2DDI is vertically-integrated and solves a vertically-integrated continuity equation for water surface elevation; no storm or hurricane windfield models or statistical analysis tools are included with model, they must be acquired separately; ADCIRC performs well using Vince Cardone's planetary boundary layer model windfields; statistical analyses using ADCIRC model storm surge simulations are compatible with the USACE Empirical Simulation Technique (EST) as well as joint probability methods. Public Domain: Yes for flood insurance study purposes. |
| TABS RMA2 v. 4.3 (Oct. 1996) |
U.S. Army Corps of Engineers | Coastal Engineering Research Center Department of the Army Waterways Experiment Station Corps of Engineers 3909 Halls Ferry Road Vicksburg, MS 39180-6199 |
Two-dimensional steady/unsteady flow model, for water levels and velocities. Computes finite element solution of the Reynolds form of the Navier-Stokes equations for turbulent flows. Public Domain: Yes |
| MIKE 21 (HD/NHD) 2002 D, 2004, 2005, and 2007 | DHI Water and Environment | DHI Inc. 319 SW Washington St. Suite 614 Portland, OR 97204 |
Solves the non-linear depth-averaged equations of continuity and conservation of momentum. Computes water levels and flows based on a variety of forcing functions. Computes wave-driven currents and wave setup. Uses a finite difference grid with dynamic nesting grid capabilities. Resolving small scale features such as narrow inland channels, culverts and control structures can be accomplished using the DHI MIKE FLOOD interface, which allows for dynamic coupling between MIKE 21 and the DHI MIKE 11 model. Public Domain: No |
| DYNLET | U.S. Army Corps of Engineers | Coastal and Hydraulics Laboratory Engineering Research and Development Center 3909 Halls Ferry Road Vicksburg, MS 39180-6199 |
One-dimensional model of dynamic behavior of tidal flow at inlets. Can be used to predict tide dominated velocities and water level fluctuations at an inlet and interior back bay system. DYNLET solves the full one-dimensional shallow water equations using an implicit finite difference solution. Public Domain: Yes |
| Coastal Wave Heights | |||
| WHAFIS 3.0 (1988) and 4.0 (2007) | Dames & Moore, revised by Greenhorne & O'Mara, revised by Watershed Concepts | The Mod Team 3601 Eisenhower Avenue Alexandria, VA 22304 |
WHAFIS 4.0 has identical wave treatments as WHAFIS 3.0. Additional features include default wind speeds for 0.2-percent-annual-chance winds and the ability for user to override default wind speeds. WHAFIS 3.0 defines wave heights associated with 100-year flood in coastal areas using modern wave action treatment; incorporates 1977 NAS recommendations on basic approximations for wind speeds, wave breaking criterion, and controlling wave height. Public Domain: Yes |
| WHAFIS 3.0 GL (1993) | Dames & Moore, Greenhorne & O'Mara, Dewberry | The Mod Team 3601 Eisenhower Avenue Alexandria, VA 22304 |
Identical wave treatments as WHAFIS 3.0, but with programmed reduction of wind speeds for U.S. shorelines of the Great Lakes. Public Domain: Yes |
| RCPWAVE (1986) |
U.S. Army Corps of Engineers | Coastal Engineering Research Center Department of the Army Waterways Experiment Station Corps of Engineers 3909 Halls Ferry Road Vicksburg, MS 39180-6199 |
Treats linear, monochromatic waves propagating over grid giving coastal bathymetry, providing nearshore wave heights pertinent to proper spacing between transects or to magnitudes of wave setup. Public Domain: Yes |
| CHAMP 2.0 (April 2007) | Dewberry & Davis LLC | The Mod Team 3601 Eisenhower Avenue Alexandria, VA 22304 |
Coastal Hazard Analysis Modeling Program (CHAMP) is a Windows-based program used for erosion and wave height analyses (WHAFIS 4.0 and RUNUP 2.0) and provides summary tables and graphics for mapping. Version 2.0 provides for computation of 1-percent- and 0.2-percent-annual-chance wave envelope and includes enhancements to the Erosion and Runup Modules. Public Domain: Yes |
| MIKE 21 Flexible Mesh Spectral Wave Model (FM SW) 2004, 2005, and 2007 | DHI Water and Environment | DHI Inc. 319 SW Washington St. Suite 614 Portland, OR 97204 |
Two-dimensional, flexible mesh, finite-volume, dynamic wind-wave growth and nearshore transformation model. The model includes a fully spectral formulation and a directional decoupled parametric formulation, includes wave-current interaction, and includes nearshore effects of refraction, shoaling, breaking, bed friction, and wind-wave growth. The wave model can be dynamically coupled with the MIKE 21 Flexible Mesh Hydrodynamic (FM HD) model so that wave setup is computed directly by the HD model. Public Domain: No |
| MIKE 21 Nearshore Spectral Wave Model (NSW) 2002D, 2005, and 2007 | DHI Water and Environment | DHI Inc. 319 SW Washington St. Suite 614 Portland, OR 97204 |
Two-dimensional stationary model for propagation of waves into the nearshore zone (refraction, shoaling, breaking, bed friction, and wind-wave growth). Based on the conservation equation for the spectral wave action density similar to HISWA model. Obstructions not directly resolvable in the grid must be modeled with grid bed roughness coefficients. Public Domain: No |
| Simulating Waves Nearshore (SWAN), Cycle III Version 40.51 | The SWAN team, Delft University of Technology, The Netherlands. | Delft University of Technology, Faculty of Civil Engineering and Geosciences, Environmental Fluid Mechanics Section, P.O. Box 5048, 2600 GA Delft, The Netherlands. |
Fully spectral third-generation shallow water wave model based on the wave action balance equation with sources and sinks. It incorporates formulations for deep water processes of wave generation, dissipation and the quadruplet wave-wave interactions. In shallow water, these processes are supplemented with formulations for dissipation due to bottom friction, triad wave-wave interactions, and depth-induced breaking. The model is stationary and optionally non-stationary, and can be applied in Cartesian, spherical, and curvilinear co-ordinates. Public Domain: Freeware |
| Coastal Wave Effects | |||
| RUNUP 2.0 (1990) | Stone & Webster Engineering Corp., revised by Dewberry |
The Mod Team 3601 Eisenhower Avenue Alexandria, VA 22304 |
Executes 1978 guidance by USACE defining wave runup on shore barrier with specified approach and storm conditions; mean wave description determines mean runup elevation. Public Domain: Yes |
| ACES 1.07 (1992) | U.S. Army Corps of Engineers | Coastal Engineering Research Center Department of the Army Waterways Experiment Station Corps of Engineers 3909 Halls Ferry Road Vicksburg, MS 39180-6199 |
Used for restricted fetch wave growth analysis and runup on vertical structures or revetments. Public Domain: Yes |
| CHAMP 2.0 (April 2007) | Dewberry & Davis LLC | The Mod Team 3601 Eisenhower Avenue Alexandria, VA 22304 |
CHAMP is a Windows-based program used for erosion and wave height analyses (WHAFIS 4.0 and RUNUP 2.0) and provides summary tables and graphics for mapping. Version 2.0 provides for computation of 1-percent- and 0.2-percent-annual-chance wave envelope and includes enhancements to the Erosion and Runup Modules. Public Domain: Yes |
1 Public domain models are available from source with nominal fee for reproducing, shipping and handling.
2 This model is acceptable for coastal storm surge applications only.
View More Nationally Accepted Models
Locally Accepted Models
- Coastal Models Meeting the Minimum Requirement of NFIP
- Hydraulic Models Meeting the Minimum Requirement of NFIP
- Hydrologic Models Meeting the Minimum Requirement of NFIP
Numerical Models No Longer Accepted
Last Modified: Tuesday, 19-Aug-2008 12:03:59 EDT