GPS-X Technical Reference

43 GPS-X Composite Variable Calculations
Figure 4-3 – Carbon – Nitrogen Library: Composite Variables and their Relationships to the
State Variables
The nitrogen fractions of xbh, xba, xu, xi, ss and si vary from model to model. The nitrogen
composite variable relationships for the mantis, asm1 and asm3 models are shown in Table 4-3,
Table 4-4, and Table 4-5
Table 4-3 – CNLIB Nitrogen Composite Variables – MANTIS Model
STKN XTKN TKN TN
sno 1
snh 1 1 1
snd 1 1 1
xnd 1 1 1
xbh ibhn ibhn ibhn
xba ibhn ibhn ibhn
xu iuhn iuhn iuhn
xi iuhn iuhn iuhn
GPS-X Technical Reference