Regional Ocean Modeling System (ROMS)

ROMS is a free-surface, terrain-following, primitive equations ocean model widely used by the scientific community for a diverse range of applications (e.g., http://www.myroms.org/

The algorithms that comprise ROMS computational nonlinear kernel are described in detail in Shchepetkin and McWilliams (2003, 2005), and the tangent linear and adjoint kernels and platforms are described in Moore et al. (2004). ROMS includes accurate and efficient physical and numerical algorithms and several coupled models for biogeochemical, bio-optical, sediment, and sea ice applications. The sea ice model is described in Budgell (2005). It also includes several vertical mixing schemes (Warner et al., 2005a), multiple levels of nesting and composed grids.

For a detailed description, see: http://www.myroms.org/

ROMS can be integrated with several model system including WaterWare, EMIS, and the LUC land use dynamics model, and is (optionally) driven by meteorological forcings generated by MM5.

ROMS is a complex 3D modewl that can not be run interactively (depending on the number of processors dedicated, computational requirements for a large and detailed domain (more than 100,000 cells) may apporach real-time !) The models also needs a condiderable volume of inital and boundary condition including dynamic forcing data that need to be available (pre-rpocessed) for the model domain and time period and duration selected for the simulation.

The ROMS model setup therefore includes:

• A model scenario selector that shows ready and running scenarios, as well as thos being edited (not yet ready to run);
• A scenario editor where the data for a new model run can be defined, including the selction of input and boundary condition subject to availability;
• model run dialog: when a scenario has be defined (and is complete and consistent) it can be submitted for computation through a dialog that provides an estimate of the expected run-time, and a choice of communication channels (SMS, eMail) to alert the user when the computations have finished.
• Results display, including animation of the model run and the direct comparisojn of alternative scenarios.
• Post-processing, which allows to export seleted output variables for multi-criteria ranking and discrete optimization, reference point method.

Scenario selector

Scenario main page

Scenario editor

Model-run dialog

Post-processing