3D Radiative Transfer for Exoplanet Atmospheres. gCMCRT: A GPU-accelerated MCRT Code

Radiative-transfer (RT) is a key component for investigating atmospheres of planetary bodies. With the 3D nature exoplanet being important in giving rise to their observable properties, accurate and fast methods are required be developed meet future multi-dimensional temporal data sets. We develop an open source GPU RT code, gCMCRT, Monte Carlo forward model general use atmosphere problems. aim automate post-processing pipeline, starting from direct global circulation (GCM) output synthetic spectra. albedo, emission transmission spectra modes 1D input structures. include capability correlated-k high-resolution opacity tables, latter which can Doppler shifted inside model. post-process results several GCM groups including ExoRad, SPARC/MITgcm THOR, UK Met Office UM, Exo-FMS Rauscher Users therefore take advantage desktop HPC computing solutions. gCMCRT well suited large grids produced by members community investigations.