Content of user manual

Parameters and coding

Convert		value	4C variable name
from	to	value	4C variable name
g/m²	kg/ha	10.0	gm2_in_kgha
kg/ha	g/m²	0.1	kgha_in_gm2
g/m²	t/ha	0.01	gm2_in_tha
t/ha	g/m²	100.0	tha_in_gm2
global radiation J/cm²	photosynthetic activ radiation mol/m²		gr_in_par

parameter	value	unit	4C variable name
part of C in biomass	0.5	--	cpart
molar mass of carbon	12.0	g/mol	cmass
partial pressure of oxygen	20.9	kPa	o2
universal gas constant	8.314	J/mol/K	r_gas
von Karman's constant	0.41	--	c_karman
specific heat of air at constant pressure	1.005	J/g/K	c_air
psychrometer constant	0.000662	hPa/K	psycro