https://www.umr-cnrm.fr/surfex/ SURFEX (Surface Externalisée, in French) is a surface modelling platform developed by Météo-France in cooperation with the scientific community. SURFEX is composed of various physical models for natural land surface, urbanized areas, lakes and oceans. It also simulates chemistry and aerosols surface processes and can be used for assimilation of surface and near surface variables. SURFEX has its own initialisation procedures and can be used in stand alone mode and coupled to an atmospheric model. In SURFEX, each model grid box is represented by four surface types : sea or ocean, water bodies (lakes, ...), urban areas and nature (soil and vegetation). Each surface type is modeled with a specific surface model and the total flux of the grid box results from the addition of the individual fluxes weighted by their respective fraction. Summary of the main components of the surfex model Tile NATURE The model for the tile "Nature" is the ISBA (interaction soil-biosphere-atmosphere) model Tile TOWN The model for the tile "Town" is the TEB (Town energy balance) model Tile OCEAN Surface fluxes above the tile "sea and ocean" can be treated in a very simple way or by using more physically based model Tile WATER Surface fluxes above the lake tile can be treated in a very simple way or by using the FLake model Chemical scheme Emission and deposition of dust and aerosols are treated over land and oceans Data assimilation Assimilation of near surface meteorological variables and remotely sensed variables can be performed using an optimal interpolation or an Ensemble Kalman filter scheme en SPIP - www.spip.net https://www.cnrm.meteo.fr/surfex/IMG/logo/test-logo-bleu2.png?1771324290 https://www.umr-cnrm.fr/surfex/ 22 144 https://www.cnrm.meteo.fr/surfex/spip.php?article55 https://www.cnrm.meteo.fr/surfex/spip.php?article55 2011-11-22T10:08:57Z text/html en <p>The terms of reference of the Surfex Steering committee : HERE <br class='autobr' /> Summary of meetings : <br class='autobr' /> date place summary documents SSC11 6 November 2025 Belgium/Finland/France/Sweden SURFEX team, ACCORD, Meso-NH, GMME, GMGEC, CEN SSC10 27 May 2024 Belgium/Finland/France/Sweden SURFEX team, SURFEX team Physio, ACCORD, Meso-NH, GMME, GMGEC, CEN SSC9 12 April 2022 Belgium/Finland/France/Sweden SURFEX team, ACCORD, Meso-NH, GMME, GMAP, GMGEC, CEN, GMGEC ACCALMIE project (…)</p> - <a href="https://www.cnrm.meteo.fr/surfex/spip.php?rubrique15" rel="directory">Steering Committe </a> <div class='rss_texte'><p>The terms of reference of the Surfex Steering committee : <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_steering_committee-2.pdf' class="spip_in" type='application/pdf'>HERE</a></p> <p><strong>Summary of meetings :</strong><br/></p> <div align='center'> <TABLE CELLPADDING=4 BORDER="1"> <tr><td> </td><td> <strong>date </strong> </td><td><strong> place</strong> </td> <td> <strong>summary</strong> </td><td> <strong>documents</strong> </td></tr> <tr> <td> SSC11 </td><td> 6 November 2025 </td><td> Belgium/Finland/France/Sweden </td><td> <div class='spip_document_544 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/minutes_ssc2025.pdf' class=" spip_doc_lien" title='PDF - 91.9 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div></td><td> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_ssc2025.pdf' class="spip_in" type='application/pdf'>SURFEX team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/accord_for_surfex_steering_committee_2025.pdf' class="spip_in" type='application/pdf'>ACCORD</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/mesonh_surfex_committee2025.pdf' class="spip_in" type='application/pdf'>Meso-NH</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmme_surfex_ssg_11-2025_gmme.pdf' class="spip_in" type='application/pdf'>GMME</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmgec_surfex-steeringnov25_gmgec.pdf' class="spip_in" type='application/pdf'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/20251105_surfex_steeringcommittee.pdf' class="spip_in" type='application/pdf'>CEN</a> </td></tr> <tr> <td> SSC10 </td><td> 27 May 2024 </td><td> Belgium/Finland/France/Sweden </td><td> <div class='spip_document_531 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/minutes_ssc2024.pdf' class=" spip_doc_lien" title='PDF - 68.1 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div></td><td> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc2024.pdf' class="spip_in" type='application/pdf'>SURFEX team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_steeringcommittee-27052024-physio.pdf' class="spip_in" type='application/pdf'>SURFEX team Physio</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/accord_for_surfex_steering_committee_2024.pdf' class="spip_in" type='application/pdf'>ACCORD</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/mesonh_surfex_committee2024.pdf' class="spip_in" type='application/pdf'>Meso-NH</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmme_surfex_ssg_05-2024_gmme.pdf' class="spip_in" type='application/pdf'>GMME</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmgec_surfex-steering27may24_cd.pdf' class="spip_in" type='application/pdf'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/cen_20240528_surfexsteeringcommitee_cen.pdf' class="spip_in" type='application/pdf'>CEN</a> </td></tr> <tr> <td> SSC9 </td><td> 12 April 2022 </td><td> Belgium/Finland/France/Sweden </td><td> <div class='spip_document_519 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/notes_ssc_2022.pdf' class=" spip_doc_lien" title='PDF - 26.3 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div></td><td> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_steering_committee_2022.pdf' class="spip_in" type='application/pdf'>SURFEX team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/accord_for_surfex_steering_committee_2022.pdf' class="spip_in" type='application/pdf'>ACCORD</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/mnh_surfex_committee2022.pdf' class="spip_in" type='application/pdf'>Meso-NH</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_ssg_04-2022_gmme.pdf' class="spip_in" type='application/pdf'>GMME</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/steering_comitee_napoly_2022.pdf' class="spip_in" type='application/pdf'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmgec_2022.pdf' class="spip_in" type='application/pdf'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/20220422_surfexsteeringcommitee_cen.pdf' class="spip_in" type='application/pdf'>CEN</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_steering_committee_-_12_april_2022.pdf' class="spip_in" type='application/pdf'>GMGEC ACCALMIE project</a> </td></tr> <tr> <td> SSC8 </td><td> 20 March 2019 </td><td> Toulouse/Grenoble/Helsinki </td><td> <div class='spip_document_474 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/minutes_ssc2019.pdf' class=" spip_doc_lien" title='PDF - 75.3 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td><a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/agenda-3.pdf' class="spip_in" type='application/pdf'>agenda</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_team_2019.pdf' class="spip_in" type='application/pdf'>SURFEX_team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/rh_presentation_pt.pdf' class="spip_in" type='application/pdf'>ALADIN/ALARO</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/hirlam_2019.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmap_2019.pdf' class="spip_in" type='application/pdf'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmgec_2019.pdf' class="spip_in" type='application/pdf'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/cen_2019.pdf' class="spip_in" type='application/pdf'>CEN</a></td></tr> <tr> <td> SSC7 </td><td> 01 March 2017 </td><td> Toulouse/Davos </td><td> <div class='spip_document_381 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc_meeting_report_20170301.pdf' class=" spip_doc_lien" title='PDF - 136.9 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/agenda-2.pdf' class="spip_in" type='application/pdf'>agenda</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_team-2.pdf' class="spip_in" type='application/pdf'>SURFEX_team</a>, [Meso-NH], <a href='https://www.cnrm.meteo.fr/surfex/IMG/odp/aladin_hamdi_surfex_sc2017.odp' class="spip_in" type='application/vnd.oasis.opendocument.presentation'>ALADIN/ALARO</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/patrick_surfex_toulouse_170227-2.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/odt/gmap_contribution-surfex-sc-2017.odt' class="spip_in" type='application/vnd.oasis.opendocument.text'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/doc/gmgec_gmgec_steering_march_2017.doc' class="spip_in" type='application/msword'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/cen_contribution_cen_ssc_surfex.pdf' class="spip_in" type='application/pdf'>CEN</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/doc/gmme_gmme_steering_march_2017.doc' class="spip_in" type='application/msword'>GMME</a> </td></tr> <tr> <td> SSC6 </td><td> 23 March 2016 </td><td> Toulouse/Brussels </td><td> <div class='spip_document_301 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc_meeting_report_20160310-2.pdf' class=" spip_doc_lien" title='PDF - 101.3 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td><a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/agenda.pdf' class="spip_in" type='application/pdf'>agenda</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_team.pdf' class="spip_in" type='application/pdf'>SURFEX_team</a>, [Meso-NH], <a href='https://www.cnrm.meteo.fr/surfex/data/ALADIN_Hamdi_SURFEX_SC2016.pdf'>ALADIN/ALARO</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surface_hirlam_harmonie_2016.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmap_contribution-surfex-sc-2016.pdf' class="spip_in" type='application/pdf'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmgec_steering_march_2016.pdf' class="spip_in" type='application/pdf'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/cen_surfex_2015_2016.pdf' class="spip_in" type='application/pdf'>CEN</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmme_surfex_ssg_03-2016_gmme.pdf' class="spip_in" type='application/pdf'>GMME</a> </td></tr> <tr> <td> SSC5 </td><td> 2 April 2015 </td><td> Toulouse/Brussels </td><td> <div class='spip_document_206 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc_meeting_report_2015_04_02.pdf' class=" spip_doc_lien" title='PDF - 115.2 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td><a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_team_news.pdf' class="spip_in" type='application/pdf'>surfex_team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/meso-nh_news.pdf' class="spip_in" type='application/pdf'>Meso-NH</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/report_aladin_alaro_toucans.pdf' class="spip_in" type='application/pdf'>ALADIN/Alaro</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_sc5_gmap_contribution.pdf' class="spip_in" type='application/pdf'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/2015_ssc5_general.pdf' class="spip_in" type='application/pdf'>General</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/parallelisation_pgd_prep2_ssc.pdf' class="spip_in" type='application/pdf'>PGD/PREP parallelization</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ecoclimap_sg2_ssc.pdf' class="spip_in" type='application/pdf'>ECOCLIMAP-SG</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surface_hirlam_harmonie_2015.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/hamdi_surfex_sc2015.pdf' class="spip_in" type='application/pdf'>ALADIN</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_ssg_03-2015_gmme.pdf' class="spip_in" type='application/pdf'>GMME</a> </td></tr> <tr> <td> SSC4 </td><td> 19 March 2014 </td><td> Toulouse/Brussels </td><td> <div class='spip_document_177 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SSC_meeting_2014_03_19_vf.pdf' class=" spip_doc_lien" title='PDF - 106.2 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td><a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SODA_Evolutions_JFM.pdf' class="spip_in" type='application/pdf'>Evolution (by J. F. Mahfouf)</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SODA_HIRLAM.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SODA_HIRLAM_add.pdf' class="spip_in" type='application/pdf'>HIRLAM addendum</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/geospatial_data_HIRLAM.pdf' class="spip_in" type='application/pdf'>HIRLAM physiography</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/physiography_surfex_team.pdf' class="spip_in" type='application/pdf'>SURFEX-team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SSC4_surfex_team-2.pdf' class="spip_in" type='application/pdf'>surfex team v8</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmgec_steering_march_2014.pdf' class="spip_in" type='application/pdf'>GMGEC</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/gmme_steering_march2014-2.pdf' class="spip_in" type='application/pdf'>GMME</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SURFACE_HIRLAM_HARMONIE_2014-2.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ALADIN-ALARO.pdf' class="spip_in" type='application/pdf'>ALADIN-ALARO</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/GMAP_SURFEX_SC_2014.pdf' class="spip_in" type='application/pdf'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/2014_SSC4_general.pdf' class="spip_in" type='application/pdf'>Surfex team</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SURFACE_HIRLAM_HARMONIE_2014-2.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/Hamdi_Presentation.pdf' class="spip_in" type='application/pdf'>ALADIN-ALARO</a>,<a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/surfex_ssg_03-2014_gmme-2.pdf' class="spip_in" type='application/pdf'>GMME</a></td></tr> <tr> <td> SSC3 </td><td> 28 March 2013 </td><td> Toulouse/Brussels </td><td> <div class='spip_document_137 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SSC_meeting_2013_03_28_vf.pdf' class=" spip_doc_lien" title='PDF - 102.5 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td><a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_aladin_Hamdi_Presentation.pdf' class="spip_in" type='application/pdf'>ALADIN</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_aladin_SURFEX_SC_daand.pdf' class="spip_in" type='application/pdf'>ALADIN PREP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_gmap_SURFEX_SC.pdf' class="spip_in" type='application/pdf'>GMAP</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_gmgec_sfx_steering_march_2013.pdf' class="spip_in" type='application/pdf'>GMGEC</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_gmme_surfex_ssc_03-2013.pdf' class="spip_in" type='application/pdf'>GMME</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_hirlam_SURFEX_HIRLAM_HARMONIE_2013.pdf' class="spip_in" type='application/pdf'>HIRLAM</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_surfex_team_general.pdf' class="spip_in" type='application/pdf'>Surfex team</a>, <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/ssc3_surfex_team_SURFEX_parallel.pdf' class="spip_in" type='application/pdf'>Surfex team parallel</a> </td></tr> <tr> <td> SSC2 </td><td> 01 March 2012 </td><td> web conf. </td><td> <div class='spip_document_96 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SSC_meeting_2012_03_01.pdf' class=" spip_doc_lien" title='PDF - 87.8 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td></td></tr> <tr> <td> SSC1 </td><td> 6 Oct 2011 </td><td> Toulouse </td><td> <div class='spip_document_15 spip_document spip_documents spip_document_file spip_documents_center spip_document_center'> <figure class="spip_doc_inner"> <a href='https://www.cnrm.meteo.fr/surfex/IMG/pdf/SSC_meeting_2011_10_06.pdf' class=" spip_doc_lien" title='PDF - 94.9 KiB' type="application/pdf"><img src='https://www.cnrm.meteo.fr/surfex/local/cache-vignettes/L64xH64/pdf-b8aed.svg?1771322374' width='64' height='64' alt='' /></a> </figure> </div> </td><td></td></tr> </table> </div> <p><br class='manualbr' /></p> <hr class="spip" /></div>