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Table of vegetation classes and corresponding roughness lengths
n | class | Z0 [m] |
---|---|---|
1 | salt water, | 0.001 |
2 | glacier | 0.0003 |
3 | inland lake | 0.001 |
4 | evergreen needle-leaf trees | 1.5 |
5 | evergreen broadleaf trees | 3.5 |
6 | deciduous needle-leaf trees | 1.0 |
7 | deciduous broadleaf trees | 2.0 |
8 | tropical broadleaf trees | 3.0 |
9 | drought deciduous trees | 0.8 |
10 | evergreen broadleaf shrubs | 0.05 |
11 | deciduous shrubs | 0.15 |
12 | thorn shrubs | 0.15 |
13 | short grass and forbs | 0.02 |
14 | long grass | 0.08 |
15 | crops | 0.08 |
16 | rice | 0.08 |
17 | sugar | 0.35 |
18 | maize | 0.25 |
19 | cotton | 0.1 |
20 | irrigated crops | 0.08 |
21 | urban | 1.35 |
22 | tundra | 0.01 |
23 | swamp | 0.05 |
24 | desert | 0.05 |
25 | mixed wood forests | 1.5 |
26 | mixed shrubs | 0.05 |
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