ideal-gas-law {fluxfinder} | R Documentation |
Convert gas concentration to quantity using the Ideal Gas Law
ffi_ppm_to_umol(ppm, volume, temp, atm)
ffi_ppb_to_nmol(ppb, volume, temp, atm)
ppm |
Gas concentration (ppmv), numeric |
volume |
System volume (chamber + tubing + analyzer, m3), numeric |
temp |
Optional chamber temperature (degrees C), numeric |
atm |
Optional atmospheric pressure (Pa), numeric |
ppb |
Gas concentration (ppbv), numeric |
The quantity value, in micromoles (for ffi_ppm_to_umol
)
or nanomoles (for ffi_ppb_to_nmol
).
If temp
and/or atm
are not provided, the defaults
are NIST normal temperature and pressure.
Steduto et al.: Automated closed-system canopy-chamber for continuous field-crop monitoring of CO2 and H2O fluxes, Agric. For. Meteorol., 111:171-186, 2002. doi:10.1016/S0168-1923(02)00023-0
ffi_ppm_to_umol(400, 0.1)
ffi_ppb_to_nmol(400, 0.1)