Description Usage Arguments Value
Calculation of the aerodynamic resistance for a given crop surface. Defaults to the FAO grass reference surface.
1 |
wz |
wind speed at height zw (default 2m/s) |
zrm |
roughness length governing momentum transfer in m (default 0.123*h) |
zrh |
roughness length governing heat transfer in m (default 0.1*zrm) |
d |
zero plane displacement height (default 2/3*h) |
h |
crop height in m (defaults to 0.12m). |
zw |
height of wind measurements in m (default 2m). |
zh |
height of humidity measurements in m (default 2m). |
lai |
Leaf area index |
ra
returns the aerodynamic resistance
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