Evapotranspiration - multiple canopies

Default no of elements in Table: 1

Name

Default

Unit

Symbol

Comments/Explanations

Canopy DensMax

0.7     

-

pdensm

The density maximum of canopy in relation to the canopy height (see Aerodynamic resistance).

Plant AddIndex

1

-

paddind

The plant area index excluding the leaves that are given by the leaf area index. Used to estimate Aerodynamic resistance.

Roughness Min

0.01

m

z0min

The minimum roughness length used when estimating roughness length of different canopies (see Aerodynamic resistance).

Roughness Max

3

m

z0max

The maximum roughness length used when estimating roughness length of different canopies (see Aerodynamic resistance).

Air Resist. LAI Effect

20

s/m

pral

The increase of air resistance inside a canopy as a factor of LAI. See also correspondent resistance for the soil evaporation (see Aerodynamic resistance).

Conduct. Ris

5E+006

J/m2/day

gris

The global radiation intensity that represents half-light saturation in the light response (see Surface resistance).

Conduct. VPD 

100

Pa

gvpd

The vapour pressure deficit that corresponds to a 50 % reduction of stomata conductance (see Surface resistance).

Conduct. Max

0.02

m/s

gmax

The maximal conductance of a fully open stomata (see Surface resistance).