Line-by-line model developers are invited to provide a status summary of their model to the RTSP-WG co-chairs. The material provided is posted here.<\/p>\n\n\n\n
Reference Forward Model (RFM)<\/strong><\/p>\n\n\n\n Latest official release: Version 4.25<\/p>\n\n\n\n Web address: www.atm.ox.ac.uk\/RFM<\/p>\n\n\n\n Code access: available on request from dudhia@atm.ox.ac.uk<\/p>\n\n\n\n License requirements: freeware<\/p>\n\n\n\n Language: Fortran 77<\/p>\n\n\n\n Features<\/p>\n\n\n\n User guide: http:\/\/www.atm.ox.ac.uk\/RFM\/sum.html<\/p>\n\n\n\n k-Compressed Atmospheric Radiative Transfer Algorithm (kCARTA)<\/strong><\/p>\n\n\n\n Latest official release: Version 1.10<\/p>\n\n\n\n Web address: http:\/\/asl.umbc.edu\/pub\/kcarta\/kcarta.html<\/p>\n\n\n\n Code access: visit http:\/\/asl.umbc.edu\/pub\/packages\/kcarta.html for download information<\/p>\n\n\n\n License requirements: freeware (please mention you used kCARTA when you write a publication, give a talk etc!)<\/p>\n\n\n\n Language: Fortran 77<\/p>\n\n\n\n Features<\/p>\n\n\n\n User guide: De Souza-Machado, S. and Strow, L. L. and Motteler, H.E. and Hannon, S.E., kCARTA : An Atmospheric Radiative Transfer Algorithm using Compressed Lookup Tables, Department of Physics, University of Maryland Baltimore County http:\/\/asl.umbc.edu\/pub\/packages\/kcarta.html<\/p>\n\n\n\n Kahlsruhe Optimised and Precise Radiative transfer Algorithm (KOPRA)<\/strong><\/p>\n\n\n\n Latest official release: Version 3.0.7<\/p>\n\n\n\n Web address:<\/p>\n\n\n\n Code access: on request from Michael.Hoepfner@imk.fzk.de<\/p>\n\n\n\n License requirements: user license agreement with Forschungszentrum Karlsruhe required<\/p>\n\n\n\n Language: <\/p>\n\n\n\n Features<\/p>\n\n\n\n User guide: The Karlsruhe Optimized and Precise Radiative transfer Algorithm (KOPRA) G.P. Stiller (Editor) with contributions from T. v. Clarmann, A. Dudhia, G. Echle, B. Funke, N. Glatthor, F. Hase, M. H\u00f6pfner, S. Kellmann, H. Kemnitzer, M. Kuntz, A. Linden, M. Linder, G.P. Stiller, S. Zorn, Forschungszentrum Karlsruhe, Wissenschaftliche Berichte, Bericht Nr. 6487, 2000. http:\/\/www-imk.fzk.de\/asf\/ame\/publications\/kopra_docu\/kopra_docu.html<\/p>\n\n\n\n Line-by-line model developers are invited to provide a status summary of their model to the RTSP-WG co-chairs. The material provided is posted here. Reference Forward Model (RFM) Latest official release: Version 4.25 Web address: www.atm.ox.ac.uk\/RFM Code access: available on request from dudhia@atm.ox.ac.uk License requirements: freeware Language: Fortran 77 Features Technical features (as listed on the […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-401","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/pages\/401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/comments?post=401"}],"version-history":[{"count":1,"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/pages\/401\/revisions"}],"predecessor-version":[{"id":402,"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/pages\/401\/revisions\/402"}],"wp:attachment":[{"href":"https:\/\/itwg.ssec.wisc.edu\/rtsp\/wp-json\/wp\/v2\/media?parent=401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Technical features (as listed on the web-page)\n * Spherical or plane-parallel atmospheres, or homogeneous paths\n * Field-of-View & Instrument Line Shape convolutions\n * CO2 Line mixing\n * Continua for H2O (MT_CKDv1), O2, N2 and CO2\n * Non-LTE (via user-supplied vibrational temperatures)\n * Select lines of particular isotopes and\/or bands\n * Jacobians (Weighting functions) for p, T, VMR, line-of-sight\n pointing, surface temperature and emissivity and vibrational temperatures\n computed by simple numerical perturbation of appropriate ray path elements\n * Satellite\/Balloon & Aircraft\/Ground-based viewing geometries\n * Surface reflections\n * Output spectra of radiance, transmittance, absorption, cooling\n rates, optical depth and\/or brightness temperature\n * Output diagnostics from ray-tracing (including Curtis-Godson\n integrations)\n * Output\/Input absorption coefficient tabulations k(nu,p,T)\n * Horizontal structure in the atmosphere\n * Flux calculations and matrices.\n * Different isotopic mixing ratio profiles\n * No scattering\n<\/pre>\n\n\n\n
\n\n\n\n * continually refining atmospheric molecular spectroscopy\n based on analyzing lab data and AIRS validation campaigns\n * can do analytic jacobians extremely rapidly\n * we plan to include NLTE and\/or scattering algorithms with\n future releases of the code (they have already been prototyped)\n<\/pre>\n\n\n\n
\n\n\n\n * Observer position: inside and outside atmosphere\n * Observation geometry: limb, nadir, slant path at any angle\n * Thermal emission and solar absorption\n * Explicit inclusion of solar lines\n * Ray-tracing in 3-d curved atmosphere\n * Radiative transfer in 1-d, 2-d or 3-d temperature and trace-gas fields\n * Hitran line-list gases\n * Pressure-temperature dependent cross-sections of heavy molecules\n * H2O, CO2, O2, N2 - continua\n * Chi-factor correction of CO2, H2O line-wings\n * Line-mixing (exact: direct diagonalization, approx.: Rosenkranz)\n * Frequency-grid and line-profile optimized line-by-line calculation\n * Non-LTE: vibrational and rotational non-LTE either via\n vibrational temperatures or via coupled explicit atmospheric non-LTE model\n * Particles: single scattering in curved atmosphere;\n optical properties: either direct input or internal calculation via \n coupled Mie-model\n * Instrumental: field-of-view, line-shape, channeling, spectral shift,\n radiance calibration\n * Analytical Jacobians: pressure, temperature, gas-vmrs, pressure\n gradient, temperature gradient, vmr-gradient vibrational temperatures, \n non-LTE parameters (non-LTE model), particle size distribution parameters\n and particle composition parameters (Mie-model), instrumental line-of-sight,\n wavenumber-shift, radiance offset and scale, instrumental line-shape\n<\/pre>\n\n\n\n
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