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1. Forecast system version
System name: CMCC-SPS3.5
First operational forecast run: 1st AprilOctober, 20182020
2. Configuration of the forecast model
Is it a coupled model? YES
Coupling frequency:
Atmosphere-Ocean: 90 minutes (every third timestep of atmospheric model)
Atmosphere-Land: 30 minutes (also timestep of atmospheric model)
Atmosphere-Sea Ice: 30 minutes (also timestep of atmospheric model)
2.1 Atmosphere and land surface
| Model | CAM 5.3 (Atmosphere) CLM 4.5 (land surface) |
|---|---|
| Horizontal resolution and grid | 1° 1/2° lat-lon approx |
| Atmosphere vertical resolution | 46 vertical levels |
| Top of atmosphere | 0.2 hPa (60 km approx.) |
| Soil levels | 10 |
| Time step | 30 minutes |
Detailed documentation:
CAM Model documentation http://www.cesm.ucar.edu/models/cesm1.2/cam/
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| Hindcast | Forecast | |
|---|---|---|
| Atmosphere initialization | ERA InterimERA5 | ECMWF IFS operational analysis |
| Atmosphere IC perturbations | 10 | 10 |
Land Initialization | Forced (obs. atmosphere) monthly run initialized from 10-year spin-up | Forced (obs. atmosphere) monthly run initialized from 10-year spin-up |
| Land IC perturbations | 3 | 3 |
| Soil moisture initialization | From land initialization | From land initialization |
| Snow initialization | From land initialization | From land initialization |
| Unperturbed control forecast? | NO | NO |
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More ocean data assimilation details available at http://c-glors.cmcc.it/index/index.html
4. Model uncertainties perturbations:
| Model dynamics perturbations | NO |
|---|---|
| Model physics perturbations | NOYES (Ocean Model only) |
If there is a control forecast, is it perturbed? | N/ANo Control Forecast |
Detailed documentation: N/A
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