The two reference publications provide an overview of libRadtran and examples of use:
C. Emde, R. Buras-Schnell, A. Kylling, B. Mayer, J. Gasteiger, U. Hamann, J. Kylling, B. Richter, C. Pause, T. Dowling, and L. Bugliaro.
The libradtran software package for radiative transfer calculations (version 2.0.1). Geoscientific Model Development, 9(5):1647-1672, 2016,
link
B. Mayer and A. Kylling.
Technical note: The libRadtran software package for radiative transfer calculations - description and examples of use.
Atmos. Chem. Phys., 5: 1855-1877, 2005,
link
The absorption parameterization REPTRAN (default in libRadtran) is described in:
J. Gasteiger, C. Emde, B. Mayer, R. Buras, S.A. Buehler, and O. Lemke.
Representative wavelengths absorption parameterization applied to satellite channels and spectral bands. J. Quant. Spectrosc. Radiat. Transfer, 148(0):99-115, 2014,
link,
preprint
Updates included into the default radiative transfer solver DISORT (C-Version of DISORT with improved intensity correction method) are described in:
R. Buras, T. Dowling, and C. Emde.
New secondary-scattering correction in DISORT with increased efficiency for forward scattering. J. Quant. Spectrosc. Radiat. Transfer, 112(12):2028-2034, 2011.
link.
The tool to calculate line-by-line absorption coefficients py4CAtS (PYthon for Computational ATmospheric Spectroscopy) is described in:
F. Schreier, S. Gimeno García, P. Hochstaffl, and S. Städt.
Py4CAtS—PYthon for Computational ATmospheric Spectroscopy. Atmosphere 2019, 10, 262.
link
There are various publications related to the Monte Carlo solver MYSTIC (1D version available in the public version of libRadtran):
General overview: B. Mayer.
Radiative transfer in the cloudy atmosphere. European Physical Journal Conferences, 1:75-99, 2009.
link
Spherical geometry: C. Emde and B. Mayer.
Simulation of solar radiation during a total eclipse: a challenge for radiative transfer. Atmos. Chem. Phys., 7:2259-2270, May 2007.
link
Polarization: C. Emde, R. Buras, B. Mayer, and M. Blumthaler.
The impact of aerosols on polarized sky radiance: model development, validation, and applications. Atmos. Chem. Phys., 10, 383-396, 2010.
link
Topography: B. Mayer, S.W. Hoch, and C.D. Whiteman.
Validating the MYSTIC three-dimensional radiative transfer model with observations from the complex topography of Arizona's Meteor Crater. Atmos. Chem. Phys., 10, 8685-8696, 2010.
link
Variance reduction methods: R. Buras and B. Mayer.
Efficient unbiased variance reduction techniques for Monte Carlo simulations of radiative transfer in cloudy atmospheres: the solution. J. Quant. Spectrosc. Radiat. Transfer, 112, 434-447, 2011.
link
Efficient spectral calculations: C. Emde, R. Buras, R., and B. Mayer.
ALIS: An efficient method to compute high spectral resolution polarized solar radiances using the Monte Carlo approach. J. Quant. Spectrosc. Radiat. Transfer, 112, 1622-1631, 2011.
link
Thermal heating and cooling rates: C. Klinger and B. Mayer.
Three-dimensional Monte Carlo calculation of atmospheric thermal heating rates. ,
J. Quant. Spectrosc. Radiat. Transfer, 144:123–136, 2014.
link