Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
Geosci. Model Dev., 9, 1647-1672, 2016
https://doi.org/10.5194/gmd-9-1647-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Model description paper
03 May 2016
The libRadtran software package for radiative transfer calculations (version 2.0.1)
Claudia Emde1, Robert Buras-Schnell5, Arve Kylling2, Bernhard Mayer1, Josef Gasteiger1, Ulrich Hamann4, Jonas Kylling2,3, Bettina Richter1, Christian Pause1, Timothy Dowling6, and Luca Bugliaro7 1Meteorological Institute, Ludwig-Maximilians-University, Theresienstr. 37, 80333 Munich, Germany
2NILU – Norwegian Institute for Air Research, Kjeller, Norway
3Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
4MeteoSwiss, Radar, Satellite and Nowcasting Division, Via ai Monti 146, Locarno, Switzerland
5Schnell Algorithms, Am Erdäpfelgarten 1, 82205 Gilching, Germany
6Dept. of Physics & Astronomy, University of Louisville, Louisville, KY 40292, USA
7Institut für Physik der Atmosphäre, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, 82234 Wessling, Germany
Abstract. libRadtran is a widely used software package for radiative transfer calculations. It allows one to compute (polarized) radiances, irradiance, and actinic fluxes in the solar and thermal spectral regions. libRadtran has been used for various applications, including remote sensing of clouds, aerosols and trace gases in the Earth's atmosphere, climate studies, e.g., for the calculation of radiative forcing due to different atmospheric components, for UV forecasting, the calculation of photolysis frequencies, and for remote sensing of other planets in our solar system. The package has been described in Mayer and Kylling (2005). Since then several new features have been included, for example polarization, Raman scattering, a new molecular gas absorption parameterization, and several new parameterizations of cloud and aerosol optical properties. Furthermore, a graphical user interface is now available, which greatly simplifies the usage of the model, especially for new users. This paper gives an overview of libRadtran version 2.0.1 with a focus on new features. Applications including these new features are provided as examples of use. A complete description of libRadtran and all its input options is given in the user manual included in the libRadtran software package, which is freely available at http://www.libradtran.org.

Citation: Emde, C., Buras-Schnell, R., Kylling, A., Mayer, B., Gasteiger, J., Hamann, U., Kylling, J., Richter, B., Pause, C., Dowling, T., and Bugliaro, L.: The libRadtran software package for radiative transfer calculations (version 2.0.1), Geosci. Model Dev., 9, 1647-1672, https://doi.org/10.5194/gmd-9-1647-2016, 2016.
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libradtran is a widely used software package for radiative transfer calculations. It allows one to compute (polarized) radiances, irradiance, and actinic fluxes in the solar and thermal spectral regions. This paper gives an overview of libradtran version 2.0 with focus on new features (e.g. polarization, Raman scattering, absorption parameterization, cloud and aerosol optical properties). libRadtran is freely available at http://www.libradtran.org.
libradtran is a widely used software package for radiative transfer calculations. It allows one...
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