0 0	Mass density (concentration)	kg.m-3
1 1	Total column (integrated mass density)	kg.m-2
2 2	Volume mixing ratio (mole fraction in air)	mole.mole-1
3 3	Mass mixing ratio (mass fraction in air)	kg.kg-1
4 4	Surface dry deposition mass flux	kg.m-2.s-1
5 5	Surface wet deposition mass flux	kg.m-2.s-1
6 6	Atmosphere emission mass flux	kg.m-2.s-1
7 7	Chemical gross production rate of mole concentration	mole.m-3.s-1
8 8	Chemical gross destruction rate of mole concentration	mole.m-3.s-1
9 9	Surface dry deposition mass flux into stomata	kg.m-2.s-1
#10-191	Reserved	
#192-254	Reserved for local use	
255 255	Missing