Changes between Version 1 and Version 2 of Documentation/FrenchConfiguration

12/22/20 17:02:21 (12 months ago)



  • Documentation/FrenchConfiguration

    v1 v2  
    11=== Description of the French configuration === 
     2The French configuration(s) 
     5Vegetation discretization 
     6Land cover change map 
     7Climate forcing 
     8Soil map 
     10River basins 
     12Parameter files 
     171 sinup 
     181 exp 
     192 spinup 
     202 exp 
     213 spin 
     223 exp 
     262.x, 3.x 
     272.x, 3.x 
     32Vegetation discretization 
     33NFI - tree species 
     34NFI - tree species 
     38C3 & C4 crops or more details? 
     43Land cover change map 
     44Past only 
     50Future only 
     55Climate forcing 
     65Soil map 
     70Reynolds INRAE 
     85River basins 
     86Not working yet at this resolution 
     87Not working yet at this resolution 
     88Not working yet at this resolution 
     89Not working yet at this resolution 
     96Own spinup 
     99Own spinup 
     104Parameter files 
     105Species level 
     106Species level 
     116To do: 
     117GM: Ask Nicolas Viovy whether his files are for his driver or standard driver. 
     118PP: Prepare SAFRAN for 2.1new driver (Philippe will ask Vlad for scripts/insights). Make sure it is compatible with the current and new driver.  
     119GM: Ask Miriam (ADEME) or Infosoil INRAE (Orleans) about the French soil map they want us to use. How to get the map? Texture map? Carbon content? Soil water holding capacity? 
     120AD: High resolution basin information needs to be prepared (this is already on Agnes’s to do list). Conversion from lambert-projection to lat/lon. 
     121PP: CITEPA ask for their land cover map. 
     122SL: start wiki (methods & materials) 
     126For the time being we could store high resolution run-off information through the history files. Run-off could be calculated in post-processing. 
     1291. Projects: ADEME and Marie Curie of Guillaume Marie 
     130Nicolas Vuichard, Jina Jeong, Guillaume Marie and Sebastiaan Luyssaert 
     132The ADEME project has a focus on France and the MSC a focus on Europe. The projects study the impact of natural disturbances and forest management on the future forest health. 
     134Configuration spinup 
     135ORCHIDEE 4.x: sechiba, stomate and sapiens 
     136Vegetation discretization: tree species level, three diameter classes and three or four age classes 
     137Restart: none 
     138Land cover change map: to be created based on the NFI age distribution map, NFI species distribution map, and the LUHv2 or another LCC product. 
     139Climate forcing: medium resolution (~ 8x8 km) no other specific requirements. Currently looking into SAFRAN data 1986 to 2018. 
     140Soil map: if available the soil map from a previous ADEME project. If not any soil map could do. 
     141Forest management map: for the year 2010 (default or based on NFI) 
     143Configuration transient 
     144Included in the spinup thanks to a dedicated land cover change map 
     146Configuration simulation experiments 
     147ORCHIDEE 4.x: sechiba, stomate and sapiens 
     148Restart:  from spinup  
     149Land cover change map: none 
     150PFT map: based in NFI data (last map of the Land cover change maps that need to be prepared for the spinup) 
     151Climate forcing: downscaled AR5. medium resolution (~ 8x8 km). We will have an inconsistency between the spinup and the future simulations no matter which forcing we use. 
     152Soil map: if available the soil map from a previous ADEME project. If not any soil map could do. 
     153Species change maps: based on the scenarios France (this is part of the simulation experiment) 
     154Management change maps: based on the scenarios France (this is part of the simulation experiment) 
     156Tree-ring simulations for Fontainebleau and Paris  
     157(Jonathan, Jina, Sebastiaan, Philippe, Valerie) 
     158Site-level simulations for PFT4 and PFT6 (PFT refination for oak possibly)  
     159ORCHIDEE 4.x: sechiba, stomate 
     1622. Projects: Services climatiques IPSL, Explore2 (MTES), BLUEGEM if funded by Belmont Forum  
     163Agnès Ducharne, Jan Polcher, Frédérique Chéruy, Philippe Peylin, Bertrand Guenet, Philippe Ciais 
     165All three projects have a focus on water resources and their response to climate change and anthropogenic pressures, especially from the agricultural sector. 
     167Configuration simulation experiments 
     168ORCHIDEE 2.x (3.x foreseen in a second step with Nicolas Vuichard): sechiba, stomate with HR routing, GWF, and irrigation 
     169Restart:  from spinup  
     170PFT map: first step with CMIP6 maps, and attempts to use French agricultural census 
     171Land cover change: yes, using standard CMIP6 maps 
     172Climate forcing: SAFRAN (~ 8x8 km) + downscaled bias-corrected climate projections from other partners of the projects ; CORDEX output 
     173Soil map: first step with Reynolds, but tests with the INRA soil map  
     174Management change maps: for agriculture and irrigation, using standard CMIP6 maps (LUHv2), and tailored irrigation  
     175Model calibration : with ORCHIDAS over the historical period, to match hydrological observations 
     1773. Projects: Carbon flux simulation in the context of the VERIFY project and in collaboration with CITEPA  
     178Matthew Mcgrath, Philippe Peylin, …. 
     180We started a discussion with CITEPA which is an agency making the Greenhouse gaz budget for France for the UNFCCC. They are considering of “possibly” using the ORCHIDEE model as an additional source of information for their budget (the NBP of ORC) 
     182We should probably phase these simulations with Project-1 of Guillaume Marie. 
     184But CITEPA could contribute as they have “made” specific land cover maps for France (annual) based on different products (ESA-CCI, a map from CESBIO, Corinne LC, ..) 
     1864. Produce adequate forcing to run ORCHIDEE at km-scales 
     187Jan Polcher, Nicolas Vuichard, Nathalie De Noblet, …  
     188To be able to use ORCHIDEE over France at an appropriate resolution we also need the adequate forcing. Not only in terms of spatial resolution but also on the quality of the diurnal cycle of rainfall. I.e. the intensity of rainfall needs to be correct so that all the issues with ORCHIDEE’s water cycle come to light and we can explore our ability to simulate extreme events. 
     192Bonjour a tous,  
     194Suite à l'échange d'email avec l'ADEME, Manuel Martin de l'INRAE infosol d'Orléans propose d'utiliser la carte de sol RMQS-RU pour la texture des sol et la RU, voici les deux publications concernant ce projet.   
     197Dobarco, M. R., Cousin, I., Le Bas, C., & Martin, M. P. (2019). Pedotransfer functions for predicting available water capacity in French soils, their applicability domain and associated uncertainty. Geoderma, 336, 81-95. 
     199Dobarco, M. R., Bourennane, H., Arrouays, D., Saby, N. P., Cousin, I., & Martin, M. P. (2019). Uncertainty assessment of GlobalSoilMap soil available water capacity products: A French case study. Geoderma, 344, 14-30. 
     202Pensez-vous que cette carte pourrait intégrer les cartes de forçage des textures de sol pour ORCHIDEE ? Manuel Martin parle d'une licence a obtenir pour accédé à la carte. Doit-on en déduire qu'elle sera payante ?  
     207Guillaume MARIE 
     209Bonjour Guillaume, 
     211j’avoue que je suis un peu perdue, et pour en rajouter une couche voici un autre papier, lié au 2ème ci-dessous: 
     212GlobalSoilMap France: High-resolution spatial modelling the soils of France up to two meter depth 
     214D'ailleurs, si qq1 a les pdfs, je suis preneuse car je n'ai pas les droits pour les télécharger. 
     216Mais pour être un peu plus constructive, voici ce que je peux dire : 
     218Les paramètres hydriques sont actuellement au nb de 7 : ks (conductivité hydraulique), alpha et n (paramètres de van Genuchten), mcs (saturation), mcr (residual), mcw (wilting point), mcf (field capacity), sachant que les deux derniers peuvent être calculés à partir des 5 autres, et que la RU est donnée par le produit de leur différence (mcf-mcw) avec mcs et al profondeur du sol.  
     220Deux façons sont actuellement disponibles pour définir ces paramètres (dans la branche 2_2) : 
     221(a) lire une carte de classes de textures USDA (12 classes, qui peuvent être déduites des fractions de sand/clay) et utiliser les PTF discrètes (Carsel et Parrish 1988) codées dans constantes_soil_var.f90 
     222(b) lire une carte pour chacun des paramètres, ce qui permet d’être très flexible (c'est al nouveauté dans 2_2 et ça peut facilement intégré dans le trunk) 
     224Ensuite, il y a d'autres paramètres du sol dans ORCHIDEE: 
     225- la fraction d’argile qui sert dans stomate 
     226- les paramètres thermiques sont actuellement déduits de la texture, à partir d'une carte de classes de textures USDA 
     228Conclusion : même si on veut utiliser des cartes de paramètres hydriques, il faut actuellement rentrer une carte de classe de texture. 
     230Enfin, quand je regarde la carte de texture de surface en Figure 8 du papier ci-dessous, ça me semble une très bonne base. Par contre, on peut se demander s'il faut prendre la texture en surface ou à 30 cm. 
     232Suggestion: cartographier la classe texturale dominante à partir de cette carte (ou celle que vous aurez choisie in fine) à la résolution SAFRAN ; cartographier aussi les paramètres déduits avec nos PTFs et les comparer avec les cartes de paramètres recommandées par l'ADEME si c'est le cas. 
    3237=== Intended uses === 
     238Dear Sebastiann, 
     240that is fine with me. 
     242You have to know that there is a project which will be submitted next 
     243week to build a forcing for ORCHIDEE at 3km. This would mean running 
     244RegIPSL (WRF+ORCHIDEE) forced with ERA5. It would provide a dynamically 
     245downscaled version of the re-analysis which can serve for model 
     246development ... and in the end see how these improvements feedback o the 
     249If Nicolas Vuichard attends the meeting he will be able to provide more 
     252        Best regards 
     254                Jan 
     256Dear Sebastiaan, 
     258I see this as progressive ! 
     260Yes, at high resolution some heterogeneities become more important. 
     262The plan would  to run RegIPSL with ORCHIDEE as it is over the 1979-2020 
     263period ... perhaps with some fudge for the background albedo. This gives 
     264a forcing data set which is already better for ORCHIDEE as the lower 
     265boundary conditions do not reflect HTESSEL any more. 
     267Using this high resolution forcing we can then work to refine ORCHIDEE, 
     268introduce new processes ... whatever is needed. When we feel confident 
     269that we have a model which is better suited to represent kilometric 
     270scale heterogeneities, then we can re-run RegIPSL. This achieved two 
     271goals : 
     2721) how important are these improvements to ORCHIDEE to better represent 
     273near surface atmospheric processes and what do we gain in terms of PBL 
     274structure and so on. 
     2752) we have a second version of forcings for ORCHIDEE off-line which can 
     276be the basis for further improvements. 
     278I see this as a key evolution of ORCHIDEE to fulfil the requests we get 
     279for climate services. 
     281I will ask Nicola if he is interested and has time for this meeting. 
     283        Best regards 
     285                Jan 
     286Forgot to add that we have a prototype for this. 
     288We have 10 years of ERA-I downscaled to 3km over the Iberian Peninsula. 
     289The domain goes up to Northern France but it is only usable south of the 
     290Loire. So that could easily be made available. 
     292The diurnal cycle of rainfall is quite different and much more realistic 
     293than ERA-I (compare to MF radar based climatologies). So that affects 
     294directly the interception loss and soil infiltration. Nobody is looking 
     295how the vegetation state predicted by ORCHIDEE are changing at these 
     296resolution ! 
     298        Best regards 
     300                Jan 
    5303=== Discussion concerning the French configuration ===