fetch3.nhl_transpiration.NHL_functions.calc_gs_Leuning#

calc_gs_Leuning(g0, m, A, c_s, gamma_star, VPD, fix_vpd=True, D0=3)#

Calculates gs according to Leuning 1995

Parameters:

  • g0 (float) – cuticular conductance [mol m-2 s-1], residual stomatal conductance at the light compensation point (empirically fitted parameter)

  • m (float) – empirically fitted parameter [unitless]

  • A (float) – net CO2 assimilation rate [µmol CO2 m-2 s-1]

  • c_s (float) – atmospheric CO2 concentration [µmol mol-1]

  • gamma_star (float) – CO2 compensation point [µmol mol-1]

  • VPD (float) – VPD [kPa]

  • D0 (float) – reference vapor pressure [kPa], by default assumed to be 3.0 kPa

Returns:

gs – stomatal conductance [mol H2O m-2 s-1]

Return type:

float