The Correlated K-Distribution Model Intercomparison Project (CKDMIP) This site (accessible via HTTPS and FTP) contains a dataset of atmospheric absorption spectra computed by the LBLRTM line-by-line model. Further information can be obtained from: - The CKDMIP web site: https://confluence.ecmwf.int/display/CKDMIP (see the User Guide) - The Hogan and Matricardi (2020) paper: https://doi.org/10.5194/gmd-13-6501-2020 - Robin Hogan (if not answered by the documentation above) The contents of the directories "concentrations", "lw_spectra", "sw_spectra", "lw_fluxes" and "sw_fluxes" are free to use for any purpose, but it is requested that any forthcoming publications cite the Hogan and Matricardi (2020) paper. The contents of the "results" directory are for use in the CKDMIP project only.