UKMO operational systems


Product description

The UK Met Office Global Seasonal coupled forecast system (GloSea5) provides 7 days of 3D global ocean forecasts at 1/4° daily. Additionally, the Forecast Ocean Assimilation Model (FOAM) ocean analysis used to initialize the coupled system is provided daily along with an updated analysis a day later which makes use of more observations. The FOAM system consists of various global, regional and shelf seas configurations. FOAM assimilates observational data including:

  • satellite SST
  • ship and buoy SST
  • along-track altimeter SSH
  • in situ temperature and salinity data (including Argo floats, moored arrays, CTDs and marine mammal data)
  • satellite sea ice-concentrations
GloSea assimilates in situ temperature and salinity in the same manner as FOAM to provide seasonal forecasts once a month.

Ocean parameters

The global product (available via the MyOcean Catalogue) includes daily mean files of the following:

  • Temperature
  • Salinity
  • Velocity
  • Sea surface height
  • Mixed Layer Depth
  • Sea ice parameters

The FOAM North Atlantic regional analysis and forecast (also available via the MyOcean Catalogue) includes daily mean files of the following:

  • Temperature
  • Salinity
  • Velocity
  • Sea surface height

Resolution

FOAM
GloSea
Horizontal Resolution
  • Global 1/4° (28km) grid spacing near equator
    that reduces to 6km grid spacing at high latitudes
  • Stretched grid in the Arctic to avoid convergence of meridians
  • North Atlantic, Mediterranean and Indian Ocean all have 1/12° spacing
  • 1/4° Global
Vertical Resolution
  • 75 levels globally
  • 50 levels regionally
75 levels
Spatial
coverage
  • Global
  • North Atlantic, Mediterranean Sea, and Indian Ocean regional configurations
Global


GloSEA/FOAM: Temperature December 9, 2014


FOAM in North Atlantic Region: Salinity December 9, 2014

FOAM model configurations


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