Table 1.
Parameter/Variable | Definition | Bounds and units |
---|---|---|
T air | Air temperature | [10 — 40]°C |
RH | Relative humidity | [20 — 100] % |
Irradiance | Total irradiation | [200 — 1,200] W/m2 |
Wind | Wind speed | [0 — 5] m/s |
Kt | Hourly diffuse to direct ratio (Reindl et al., 1990) | [0 — 1] |
LAD | LAD = a*LADinit | [0.5 — 2] |
LIAD | LIAD distribution (Wang, Li, & Su, 2007) | Defined functions: Planophile, Erectophile, Plagiophile, Uniform |
b temp | Stomatal response to leaf temperature | [10 — 35]°C |
c temp | Stomatal response to leaf temperature | [5 — 15]°C |
Gsmax | Maximal stomatal conductance | [1e‐3 — 4e‐3] m/s |
d PAR |
Stomatal response to PAR
With b PAR = d PAR/10 and a PAR = (2,000 + d PAR − b PAR)/2,000 |
[100 — 5,000] μmol m−2 s−1 |
a VPD |
Stomatal response to VPD ( )with f
2(VPD ≥ VPDmax) = 0,
b
VPD = 1‐c
VPD*a
VPD
and c VPD = 1/(a VPD − VPDmax) |
[200 — 2,000] Pa |
VPDmax |
Stomatal response to VPD with f
2(VPD ≥ VPDmax) = 0, b VPD = 1 − c VPD*a VPD and |
[3,000 — 5,000] Pa |