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2.1 Atmosphere and land surface
| Model | CanAM4 |
|---|---|
| Horizontal resolution and grid | T63 (~2. |
| 8° lat/lon) | |
| Atmosphere vertical resolution | 35 hybrid levels |
|---|---|
| Top of atmosphere | 1 hPa |
| Soil levels (layers) | 3 |
Layer 1: 0-10 cm |
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| Time step | 15 minutes |
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Detailed documentation:
von Salzen, K., and Coauthors, 2013: The Canadian fourth generation atmospheric global climate model (CanAM4). Part I: Representation of physical processes. Atmos. -Ocean, 51, 104–125, https://doi.org/10.1080/07055900.2012.755610
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| Ocean model | CanOM4 |
|---|---|
| Horizontal resolution | ~1.4 degrees 4° (lon), ~0.94 degrees 94° (lat) |
| Vertical resolution | 40 levels with ~10m spacing near surface |
| Time step | 20 minutes |
| Sea ice model | CanICE |
| Sea ice model resolution | ~2.8 degrees 8° lat/lon |
| Sea ice model levels | 1 |
| Wave model | N/A |
| Wave model resolution | N/A |
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4. Model Uncertainties perturbations:
| Model dynamics perturbations | No |
|---|---|
| Model physics perturbations | No |
If there is a control forecast, is it perturbed? | No control forecast |
Detailed documentation:
5. Forecast system and hindcasts
| Forecast frequency | 12-month forecast is produced once per month. (Hindcasts are initialized on the first day of each month, forecasts on the last day of previous month.) | ||
|---|---|---|---|
| Forecast ensemble size | 10 | ||
| Hindcast years | All years since 1980-2010 | ||
| Hindcast ensemble size | 10 | ||
| On-the-fly or static hindcast set? | static | Calibration (bias correction) period | 1981-2010, transitioning to 1991-2020 in late 2020 |
6. Other relevant information
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