| Land type | Zo (m) Min. | Zo (m) Max. |
| Mud/ice | 0.00001 | 0.00003 |
| Calm sea | 0.0002 | 0.0003 |
| Sand | 0.0002 | 0.001 |
| Snow | 0.001 | 0.006 |
| Cereal field | 0.001 | 0.01 |
| Low grass/steppes | 0.01 | 0.04 |
| Descamped | 0.02 | 0.03 |
| Tall grass | 0.04 | 0.1 |
| Terrain with trees | 0.1 | 0.3 |
| Forest | 0.1 | 1 |
| Suburban settlement | 1 | 2 |