U.S. GODAE: Global Ocean Prediction with the Hybrid Coordinate Ocean Model (HYCOM)
MIAMI UNIV FL INST OF MARINE AND ATMOSPHERIC SCIENCES
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The main objective is to use the HYbrid Coordinate Ocean Model HYCOM with data assimilation in an eddy-resolving, fully global ocean prediction system with transition to the Naval Oceanographic Office NAVOCEANO at .08 deg equatorial 7 km mid-latitude resolution in 2007 and .04 deg resolution by 2011. The model will include shallow water to a minimum depth of 5 m and provide boundary conditions to finer resolution coastal and regional models that may use HYCOM or a different model. In addition, HYCOM will be coupled to atmospheric, ice and bio-chemical models, with transition to the Fleet Numerical Meteorology and Oceanography Center FNMOC for the coupled ocean-atmosphere prediction. Basin-scale configurations will also form the backbone of the NOAANCEPMMAB Ocean Forecast System. All the systems will be transitioned with assimilation of sea surface height SSH from satellite altimeters, sea surface temperature SST and temperature Tsalinity S profiles, including profiles from ARGO floats. In addition, 30-day forecasts are planned once a week. The global system will include two-way coupling to an ice model and a version with two-way coupling to an atmospheric model for transition to FNMOC. The project will ensure that an accurate and generalized ocean model nesting capability is in place to support regional and littoral applications when global HYCOM becomes operational. This will include the capability to provide boundary conditions to nested models with fixed depth z-level coordinates, terrain following coordinates, generalized coordinates HYCOM, and unstructured grids. To facilitate this goal, HYCOM will be developed into a full-featured coastal ocean model in collaboration with a partnering project. The project will participate in the multinational Global Ocean Data Assimilation Experiment GODAE and international GODAE-related ocean prediction system intercomparison projects.
- Physical and Dynamic Oceanography