



Appendix A: Algorithms for Computing Inband Radiance
Below are C++ functions for computing the integrated spectral radiance (W m^{2} sr^{1}) and integrated spectral photon radiance (photon s^{1}m^{2} sr^{1}). The functions compute the integral from the specified wavenumber to infinity for a blackbody at the input temperature. Finite spectral regions can be computed by using this function twiceonce with each end point of the spectral region. The difference of the two gives the radiance for the spectral region.

Gascell Simulator 