CETN II-28
(12/91)
Coastal Engineering
Technical Note
THE COASTAL MODELING SYSTEM:
A SYSTEM OF NUMERICAL MODELS AND SUPPORT PROGRAMS
PURPOSE:
As part of its research mission, the Coastal Engineering Research
Center (CERC) has developed a number of numerical models for studying a
variety of coastal processes, including storm surge, tidal and wind-driven
c i r c u l a t i o n , and wave generation and transformation.
It is CERC's goal to
transfer this technology to Corps elements through computer-based systems.
For those models that are computationally- and memory-intensive, this transfer
will be made via the Coastal Modeling System (CMS). The CMS is a software
package aimed at organizing CERC's larger numerical models and their
supporting software into a well-documented, user-friendly system that is
available to all Corps elements having a need to apply the supported modeling
technology.
Several objectives are followed in developing and expanding CMS.
Since
some of the models share similar input requirements, output capabilities, and
procedural
implementation, efforts are made to standardize these portions of
the models as much as possible.
This standardization promotes efficiency
because coding effort is reduced, new users learn the models in the system
more rapidly, and chances for errors in entering input or interpreting output
are reduced because of user familiarity with the system structure.
COMPONENTS:
The CMS is a supercomputer-based system of models and supporting
software packages.
Presently, this system contains seven models, which are:
a) the W E S Implicit Flooding Model (WIFM) for simulating shallow-
water, long-wave hydrodynamics;
b) the Standard Project H u r i c a n e (SPH) model for computing wind
velocities and atmospheric pressure fields generated by hurricanes;
c) the Regional Coastal Processes WAVE propagation (RCPWAVE) model
for determining short-wave transformation'in open coast regions;
d) the Curvilinear Long-wave HYDrodynamic (CLHYD) model for
simulating shallow-water, long-wave hydrodynamics using a boundary-
fitted (curvilinear) grid system;
e) the SHALlow WaVe (SHALWV) model for simulating irregular,
shallow-water wave growth, propagation and decay over a spatial area
for a given time period;
f) the S T e a d y WAVE (STWAVE) model for simulating time-independent,
irregular wave propagation; and
g) the Harbor Wave Oscillation (HARBD} model for predicting wave
oscillations in harbors.
US Army Engineer Waterways Experiment Station, Coastal Engineering Research Center
3909 Halls, Ferry Road, Vicksburg, Mississippi 39180-6199
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