...
| Hindcast | Forecast | |
|---|---|---|
| Atmosphere initialization | ERA-Interim | ECMWF operations |
| Atmosphere IC perturbations | Ensemble data assimilation and leading singular vectors applied to upper air variables | Ensemble data assimilation and leading singular vectors applied to upper air variables |
Land Initialization | 43r1 land surface model driven by ERA-Interim (like ERA-Interim land (43r1) | ECMWF operations |
| Land IC perturbations | Ensemble data assimilation applied to some land fields | Ensemble data assimilation applied to some land fields |
| Soil moisture initialization | 43r1 land surface model driven by ERA-Interim (like ERA-Interim land) | ECMWF operations |
| Snow initialization | 43r1 land surface model driven by ERA-Interim (like ERA-Interim land) | ECMWF operations |
| Unperturbed control forecast? | Yes | Yes |
...