= Summary of the 2-days ORCHIDEE meeting (13 and 14 of May 2013) = A 2 days meeting was organized in Jussieu to gather all developpers and users of ORCHIDEE to discuss about the futur of the model developments concerning primarily the "Physic" of the modele. Few external contributors also came to provide an independant view of ongoing developments in other groups. The meeting successfully gathered around 70 people.. Below is the agenda with a link to the different presentations and few words about the "round table discussions" == Monday 14 morning session: overview of ORCHIDEE == - Welcome (P. Peylin) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Peylin_introduction.pdf presentation]) - An historical view of the land surface model at IPSL – (K. Laval) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Katia_Orchid-retraite-new.pdf presentation]) - The ORCHIDEE project: Status & Ongoing developments (P. Peylin) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Peylin_ORCHIDEE_general.pdf presentation]) - Land use change in ORCHIDEE (N. De Noblet) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/deNoblet_ORCHIDEE-Reunion-Mai2013.pdf presentation]) - Link between Physical & Biogeochemical processes (S. Luyssaert) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Sebastiaan_Monday_presentation.pdf presentation]) - The High Latitude developments. (I. Gouttevin) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Goutevin_Journees_ORCHIDEE_2013_High-lat.pdf presentation]) == Monday 14 Afternoon Session: Hydrology == - Hydrology in ORCHIDEE - Past achievements and perspectives (A. Ducharne) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Ducharne_hydro_retraite_2013.pdf presentation]) - "Hydrological data assimilation in LSMs - The experience of the ECMWF" (P. deRosnay, ECMWF) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/deRosnay_ECMWF_20130513b.pdf presentation]) - Hydrology in CNRM-CM climate model: development of a simple aquifer scheme (J.P. Vergne, CNRM) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Vergnes_surfex_jr_orchidee-expanded.pdf presentation]) - Modeling ground water of French river basin (F. Habets) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Habets_journees_orchidee_2013-reduce.pdf presentation]) - Water uses evolution and ground-water reservoirs: operating rule with ODDYCCEIA: links with ORCHIDEE & perspectives (P. Dumas) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Dumas_journees_orchidee.pdf presentation]) - Accounting for human impact on hydrology in ORCHIDEE (M. Guimberteau) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/guimberteau_retraite_ORCHIDEE.pdf presentation]) Round table: The future of hydrology in ORCHIDEE: which ways? which collaborations ? We had a short discussion on how to improve the ORCHIDEE model which lead to the following remarks: == Tuesday 14 Morning Session: Coupling with the atmosphere == - ORCHIDEE-LMDZ coupling; lesson from CMIP5 (F. Cheruy) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/FCheruy_orchidee.2013.pdf presentation]) - Future LMDZ development: the new PBL (F. Hourdin) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Hourdin_LMDZ_Orchidee.pdf presentation]) - The use of isotopes to diagnose surface processes (C. Risi)([http://dods.ipsl.jussieu.fr/orchidee/WIKI/CRisi_expose_retraiteOR.pdf presentation]) - A new radiative Transfert scheme in ORCHIDEE (J. Otto) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/JOtto_Orchidee_retreat_final.pdf presentation]) - A new multi-layers energy budget in ORCHIDEE (J. Ryder) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/JRyder_jussieu_slides_140513.pdf presentation]) - ORCHIDEE-WRF: the potential of the OASIS coupler (J. Polcher) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Polcher_OrchideeDays_OASIS_Coupling.pdf presentation]) Round tables: The future challenge for ORC – LMDz coupling (F. Cheruy) == Tuesday 14 Afternoon Session: Evaluation & Posters & Coding practices == ORCHIDEE in the Model Inter-comparison Projects (P. Ciais) ([http://dods.ipsl.jussieu.fr/orchidee/WIKI/Ciais_talk_mip_20120513.pdf presentation]) ==== Session on Evaluation (chair: N. Vuichard) ==== Presentation of the on-going effort towards a systematic evaluation chain (N. Vuichard); See his presentation [http://dods.ipsl.jussieu.fr/orchidee/WIKI/session_evaluation.pptx here] Contributions from all: - Jan Polcher / Agnès Ducharne : [http://dods.ipsl.jussieu.fr/orchidee/WIKI/1_River_Diag.pdf Hydrology] - Catherine Ottlé: [http://dods.ipsl.jussieu.fr/orchidee/WIKI/2_slides_snow.ppt Snow] - Sarah Dantec-Nédélec: [http://dods.ipsl.jussieu.fr/orchidee/WIKI/3_ORCHIDEE-MICT.pptx High Latitudes] - Camille Risi / Francesca Guglielmo : [http://dods.ipsl.jussieu.fr/orchidee/WIKI/4_slide_eval_isotopes.pdf Isotopes] - Fabienne Maignan: [http://dods.ipsl.jussieu.fr/orchidee/WIKI/5_Evaluation_Maignan_130503.ppt Vegetation Index] - Ben Poulter: [http://dods.ipsl.jussieu.fr/orchidee/WIKI/6_poulter_ORCHIDEE_.pptx Biomass] - Philippe Peylin : [http://dods.ipsl.jussieu.fr/orchidee/WIKI/7_Evaluation_atmCO2.pptx CO2 at stations] - Frédérique Chéruy : [http://dods.ipsl.jussieu.fr/orchidee/WIKI/8_nicolas.pdf LMDZ-ORCHIDEE] ==== Poster session with Coffee (F. Maignan) ==== Presentation of all posters (1 slide / poster ) by Fabienne Maignan [http://dods.ipsl.jussieu.fr/orchidee/WIKI/Fabienne_PosterSession_130514.pdf presentation] followed by a coffee brake around the posters. ==== ORCHIDEE code structure and its future evolution (F. Maignan & S. Luyssaert) ==== - Current code structure and potential evolution (S. Luyssaert) [http://dods.ipsl.jussieu.fr/orchidee/WIKI/.pdf presentation] - Coding practicies from current developers (M. Mcgrath) [http://dods.ipsl.jussieu.fr/orchidee/WIKI/MMacgrath_orchidee-retreat_coding.pdf presentation] - The constraint for automatic code differentiation (M. Mancip) [http://dods.ipsl.jussieu.fr/orchidee/WIKI/Martial-Mancip_Assimil.pdf presentation] Round table: How to improve the ORCHIDEE code structure? We started a constructive discussion in order to derive in the coming months a little document that will propose new coding guidelines in ORCHIDEE and a new routines/module strucuture. This effort is summarized under https://forge.ipsl.jussieu.fr/orchidee/wiki/HowTo/FortranStandards