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| Model | CESM 1.2 - CAM 5.3 (Atmosphere) CESM 1.2 - CLM 4.5 (Land surface) |
|---|---|
| Horizontal resolution and grid | 1/2° lat-lon approx |
| Atmosphere vertical resolution | 46 levels in the vertical |
| Land vertical resolution | 15 layers (see table below) |
| Top of atmosphere | 0.2 hPa (60 km approx.) |
| Soil layers | 15 layers: 10 soil layers plus 5 bedrock layers (for layer depths, see table below) |
| Time step | Main (Physics) Time-step: 30 minutes. “Tracer” Advection Time step: 225 seconds (1/8 of the Physics time step) Fluid-Dynamics Time step: 56.25 seconds (1/32 of the Physics time step). |
Layer n. | Layer depth (m) |
1 (soil) | 0.0000-0.0279 |
2 (soil) | 0.0279-0.0623 |
3 (soil) | 0.0623-0.1189 |
4 (soil) | 0.1189-0.2122 |
5 (soil) | 0.2122-0.3661 |
6 (soil) | 0.3661-0.6198 |
7 (soil) | 0.6198-1.0380 |
8 (soil) | 1.0380-1.7276 |
9 (soil) | 1.7276-2.8646 |
10 (soil) | 2.8646-4.7392 |
11 (bedrock) | 4.7392-7.8298 |
12 (bedrock) | 7.8298-12.9253 |
13 (bedrock) | 12.9253-21.3265 |
14 (bedrock) | 21.3265-35.1776 |
15 (bedrock) | 35.1776-50.0000 |
Detailed documentation:
CAM Model documentation http://www.cesm.ucar.edu/models/cesm1.2/cam/
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