The Coupled Ocean / Atmosphere Mesoscale Prediction System (COAMPS) Model
Entry ID: COAMPS
Abstract: The Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS®) has been
developed by the Marine Meteorology Division (MMD) of the Naval Research
Laboratory (NRL). The atmospheric components of COAMPS®, described below, are
used operationally by the U.S. Navy for short-term numerical weather prediction
for various regions around the world.
The atmospheric portion of COAMPS® represents a ... complete three-dimensional data
assimilation system comprised of data quality control, analysis,
initialization, and forecast model components. Features include a globally
relocatable grid, user-defined grid resolutions and dimensions, nested grids,
an option for idealized or real-time simulations, and code that allows for
portability between mainframes and workstations. The nonhydrostatic atmospheric
model includes predictive equations for the momentum, the non-dimensional
pressure perturbation, the potential temperature, the turbulent kinetic energy,
and the mixing ratios of water vapor, clouds, rain, ice, grauple, and snow, and
contains advanced parameterizations for boundary layer processes,
precipitation, and radiation.
Those portions of COAMPS® that are still under development and testing are not
included with this current release. Other components of COAMPS® now under
development include the ocean quality control, analysis, initialization, and
forecast model; and the NRL Atmospheric Variational Data Assimilation System
(NAVDAS), a 3-dimensional variational data assimilation system that will
replace the current analysis method in COAMPS® that is based on 3-dimensional
multivariate optimum interpolation method. Any future additions and/or
modifications to COAMPS®, will not be added to this web site until that portion
of code has gone through the normal validation procedures and has been
operational within the Commander, Naval Meteorology and Oceanography Command
(CNMOC)/Fleet Numerical Meteorology and Oceanography Center (FNMOC) claimancy
for a period of no less than 3 months.
Finally, the distributed version of the COAMPS® code that can be downloaded
from the web site has been designed to use the message-passing interface (MPI),
OpenMP directives, and horizontal domain decomposition to achieve parallelism.
The code is capable of executing efficiently across vector, parallel, or
symmetric muti-processor (SMP) machines by simply changing run-time options.
[Summary obtained from the COAMPS home page]
Creation and Review Dates