Calculating canopy temperature
cal_canopyTem(Hc, r_c_a, Hs, r_a_a, rho_cp, Tr)
A vector for the canopy (foliage) temperature (Celsius degree)
crop sensible heat fluxes (W m-2)
the bulk boundary layer resistance (s m-1)
soil sensible heat fluxes (W m-2)
the aerodynamic resistance between the mean canopy flow and reference level (s m-1)
the volumetric heat capacity for air (1221.09 J m-3 K-1)
Tr is the air temperature at reference level (Celsius degree). weather station.