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Coupling frequency: One hour (between atmosphere and open water)
2.1 Atmosphere and land surface
| Model | NCEP Global Forecast System |
|---|---|
| Horizontal resolution and grid | T128 (~ 1x1 Deg Lat/Lon) |
| Atmosphere vertical resolution | 64 Levels (sigma-pressure hybrid coordinates) |
| Top of atmosphere | 0.02 hPa |
| Soil levels | Four |
| Time step | 20 10 minutes |
Detailed documentation:
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| Ocean model | GFDL MOM4 |
|---|---|
| Horizontal resolution | Spatial resolution in the zonal direction of 0.5° and in the meridional direction, 0.25° from 10°S to 10°N, progressively decreasing to 0.5° from 10° to 30°, and is fixed at 0.5° beyond 30° in both hemispheres. |
| Vertical resolution | 40 Layers |
| Time step | 1 hour |
| Sea ice model | GFDL Sea Ice Simulator (part of GFDL MOM4 ocean model) |
| Sea ice model resolution | Sea ice model is on a tripolar grid; Resolution in polar regions is about 50x50 Km |
| Sea ice model levels | Three; one snow layer, and two equal-thickness ice layers. |
| Wave model | Not Applicable |
| Wave model resolution | Not Applicable |
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Data assimilation method for control analysis: Climate Forecast System Reanalysis (CFSR); 3DVAR
Horizontal and vertical resolution of perturbations: N/A
Perturbations in +/- pairs: N/A
Detailed documentation:
3.2 Ocean and cryosphere
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