Symbol	Name	Unit
q	Heat flow density	W· m${}^{-2}$
t	Time	s
$C_p$	Specific heat capacity	J·(kg·K)${}^{-1}$
$C_v$	Volumetric heat capacity	J·(m${}^3$·K)${}^{-1}$
h	reduced Planck’s constant	J/s 6.62607015·10${}^{-34}$
$I_S$	intensity of the Stokes part of the Raman scattering
$I_{AS}$	intensity of the Stokes part of the Raman scattering
k	Boltzmann constant	1.38064852·10${}^{-23}$ m${}^2$kgs${}^{-2}$K${}^{-1}$
Q	Volumetric flow rate	m${}^3$·s${}^{-1}$
T	Temperature	${}^{\circ }$C or K
T${}_{REF}$	reference temperature offset	${}^{\circ }$C or K
W	Thermal energy	W
$\alpha$	Thermal diffusivity	m${}^2$·s${}^{-1}$
$\lambda$	Thermal conductivity	W·(m·K)${}^{-1}$
$\rho$	Density	kg·m${}^3$
z	distance from the front of the optical fibre	m