${\kappa }_{\lambda }$	absorption coefficient [mm−1]
$r_{\lambda }^{abs}$	local volumetric light absorption rate [µmol L−1 day−1]
${\sigma }_{\lambda }$	scattering coefficient [mm−1]
$r_x^{}$	specific biomass growth rate
${\beta }_{\theta ,\lambda }$	the scattering phase function
${\left({\overline{\mu }}_n^{*}\right)}_{PAR}$	averaged coefficient of the phase function in the PAR range [rad]
${\left({\mu }_n^{*}\right)}_{\lambda }$	coefficient of the phase function [rad]
Chl	chlorophyll
GRAS	generally recognized as safe
MC	Monte Carlo
OP	optical or radiative property
PAR	photosynthetic active radiation
PBR	photobioreactor
PBS	phycobilisome
PPF	photosynthetic photon flux [µmol s−1]
PPFD	photosynthetic photon flux density [µmol m−2 s−1]
PS	photosystem
REF	radiant energy field
RTE	radiative transfer equation
TPBR	tubular photobioreactor