| Surface type | z0 m |
| Smooth sea | 0.00001 |
| Rough sea | 0.000015 - 0.0015 |
| Ice | 0.00001 |
| Snow | 0.00005 - 0.0001 |
| Short grass | 0.04 - 0.1 |
| Coniferous forest | 0.28 - 3.9 |
| Broadleaf deciduous forest | 2.7 |