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Gulf of Mexico Hybrid Coordinate Ocean Model (GoM-HYCOM)

 

DESCRIPTION:

The Gulf of Mexico (GoM) HYCOM model domain and bathymetry (contours in m). This is the low resolution set up used for the real time GoM-HYCOM, which has been running at the Naval Research Lab at the Stennis Space Center (NRL-SSC) since 2002 (Pat Hogan and Ole-Martin Smedstad). It provides forecasts of all hydrodynamic variables throughout the water column. The low resolution model set-up (1/25 degree, about 3.5 km) serves as a regional model used for Gulf of Mexico studies and to provide boundary conditions for nested shelf and coastal models in the Northern Gulf of Mexico (NGoM-HYCOM), West Florida Shelf (WFS-HYCOM) and South Florida (SoFLA-HYCOM). At RSMAS/UM-AOML/NOAA (Ocean Modeling and OSSE Center, OMOC), the same domain has been set-up at 1/12 degree (about 7 km) low resolution for the development of the ocean OSSE prototype and at 1/50 degree (about 1.8 km) for high resolution forecasts.

 


RESOLUTION:

~1.8km (0.02o) or ~3.5km (0.04°) or ~7km (0.08°), 20 or 26 or 32 vertical levels (isopycnic/z-coordinates in deep water, sigma coordinates over shelf)


NESTED: Yes


OUTER MODELS:

ATL-HYCOM, GLB-HYCOM


DATA ASSIMILATION:

Yes, using the Navy Coupled Ocean Data Assimilation NCODA scheme


FORCING:

Hindcast:

 (1) Navy Operational Global Atmospheric Prediction System NOGAPS (0.5o)

 (2) NAVy Global Environmental Model (NAVGEM, 0.5o)

 (3) NAVy Global Environmental Model (NAVGEM, 0.281o)

 

Forecast:

  NOAA-NCEP Global Forecast System (GFS, 0.25o)

 

 

 


APPLICATIONS:

Loop Current Dynamics
Initial and Boundary Conditions for Shelf and Coastal Models
Hurricane Response
Observing System Simulation Experiments (OSSEs)
Navy Coupled Ocean Data Assimilation (NCODA)
Hurricane Response (Animation)
Deepwater Horizon oil spill
Forecast: Sea Surface Temperature
Forecast: Sea Surface Height and Surface Currents
Forecast: Sea Surface Salinity
Forecast: Temperature at 50m


CONTACT:

Villy Kourafalouvkourafalou@rsmas.miami.edu
HeeSook Kanghkang@rsmas.miami.edu


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