https://www.meteo.physik.uni-muenchen.de/~iprt/ 2026-04-05T17:16:43+00:00 https://www.meteo.physik.uni-muenchen.de/~iprt/ https://www.meteo.physik.uni-muenchen.de/~iprt/lib/tpl/dokuwiki/images/favicon.ico text/html 2026-03-20T17:02:07+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:e6_ocean_planet&rev=1774026127&do=diff Case E6: Planet with US standard atmosphere and ocean surface In this case we include the US standard atmosphere, the corresponding Rayleigh scattering optical thickness and molecular absorption profiles are provided at 450 nm. Below we add a water surface described by a bidirectional reflectance distribution function including the specular reflection. text/html 2026-02-18T13:50:43+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:d4_aerosol_spheroid&rev=1771422643&do=diff Case D4: Aerosol layer (spheroid) This case includes the same setup as case D1 but including spheroidal aerosol particles instead of molecules. Setup: * no molecules * aerosol optical thickness: 0.2 * aerosol optical properties: [netCDF],[ascii] The variable text/html 2026-02-16T09:28:07+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=group_members:group_members&rev=1771234087&do=diff IPRT Co-Chairs Contact Info Claudia Emde Rayference Rue d’Alost 7, 1000 Bruxelles, Belgium Bernhard Mayer Lehrstuhl fuer Experimentelle Meteorologie Ludwig-Maximilians-Universität Theresienstrasse 37, 80333 München, Germany Members of IPRT Please contact Claudia Emde if you want to become a member of IPRT. text/html 2026-02-16T09:18:32+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:intercomparisons&rev=1771233512&do=diff IPRT polarized radiative transfer model intercomparison General conventions: * For all cases normalized radiances are compared (i.e. Stokes vector components devided by the extraterrestrial irradiance). * The viewing azimuth angle is defined clockwise text/html 2025-11-26T14:16:16+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:d1_rayleigh&rev=1764166576&do=diff Case D1: Rayleigh scattering The most simple setup contains only one layer with scattering (non-absorbing) molecules. Radiance shall be calculated for various sun-observer geometries, for twilight conditions and for limb observation geometries. We use the same model setup as for case A1, only change from plane-parallel to spherical geometry. text/html 2025-11-05T18:51:16+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=rt_models:rt_models&rev=1762368676&do=diff Polarized radiative transfer models If your model should be included in this table, please send all required information to Claudia Emde. Name Group /Institute Method Model geometry Availability MYSTIC LMU Munich Monte Carlo 1D/3D plane-parallel/spherical 1D version available at text/html 2025-09-15T12:37:15+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:d3_aerosol_spherical&rev=1757939835&do=diff Case D3: Aerosol layer (spherical) This case includes the same setup as case D1 but including spherical aerosol particles instead of molecules, the same as in case A3. Setup: * no molecules * typical water soluble aerosol for 50% relative humidity at 500 nm from OPAC database text/html 2025-09-15T08:29:04+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:d6_ocean&rev=1757924944&do=diff Case D6: Ocean surface This case includes the same setup as case D1 but including an ocean surface (reflectance matrix). Setup: * Ocean reflectance matrix by Mishchenko's code ocean.shadow.f (uses anti-clockwise convention for azimuth angle!) * refractive index of water (1.33 + 0i) text/html 2025-09-11T12:13:09+00:00 claudia https://www.meteo.physik.uni-muenchen.de/~iprt/doku.php?id=intercomparisons:a6_ocean1&rev=1757592789&do=diff Case A6: Ocean surface Setup: * Ocean reflectance matrix by Mishchenko's code ocean.shadow.f (uses anti-clockwise convention for azimuth angle!) * refractive index of water (1.33 + 0i) * wind speed 2m/s * scattering optical thickness (Rayleigh) of layer: 0.1