| When was the current long-range forecast system implemented? | August 1st, 2019 |
|---|---|
| Is it a coupled forecast system? | Yes |
| Is it a Tier-2 forecast system? | No |
| Atmospheric model resolution |
CanCM4i model: T63 (64x128 gaussian native grid) GEM-NEMO model: 1.4 deg (128x256 lat-lon grid) Data for both models is sent on 1 deg lat-lon grid |
| Ocean model (if applicable) |
CanCM4i model: CanOM4, 1.41 deg in longitude and 0.94 deg in latitude, 40 levels GEM-NEMO model: NEMO/ORCA1, 1 deg nominal horizontal resolution (1/3 deg in longitude near Equator) 75 levels |
| Source of atmospheric initial conditions | The CMC Global 4D-var analysis is assimilated. |
| Source of ocean initial conditions | CMC SST and sea-ice analysis at the surface and CMC GIOPS 3D ocean analysis below the surface. |
| If Tier-2, what is the source of SST predictions? | N/A |
| Hindcast period | 1981-2010 |
| Ensemble size for the hindcasts | 10 GEM-NEMO members + 10 CanCM4i members |
| How is the hindcast ensemble configured? | For each month of the hindcast, a 12-month forecast is produced. There is no lagged initial conditions, all the 20 members start on the first of the month. |
| Ensemble size for the forecast | 20 members, 10 for each model |
| How is the forecast ensemble configured? | Every month, a 12-month forecast is produced. There is no lagged initial conditions, all the 20 members start on the first of the month. |
| Length of forecasts | 12 months |
| Data format |
GRIB2 data described and linked to at http://weather.gc.ca/grib/grib2_cansips_e.html |
| What is the latest date predicted anomalies for the next month/season become available? | The forecasts will be available every first day of the month. |
| How are the forecast anomalies constructed? | By subtracting the ensemble forecast mean from the hindcast mean. |
| URL where forecast are displayed | http://www.weatheroffice.gc.ca/saisons/index_e.html |
| Point of Contact | Dr. Marko Markovic (marko.markovic@canada.ca) |
