Changes between Version 14 and Version 15 of DevelopmentActivities/AccelerationSpinup


Ignore:
Timestamp:
2011-09-30T14:23:54+02:00 (11 years ago)
Author:
dsolyga
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • DevelopmentActivities/AccelerationSpinup

    v14 v15  
    265265 
    266266 
     267== MEETING (20/09/2011) == 
     268 
     269A meeting was organized in order to discuss the following problem : why is the algebraic method not more faster? 
     270 
     271Presents : Nicolas Viovy, Nicolas Vuichard, Philippe Peylin Bertrand Guenet and Martial Mancip 
     272 
     273After presenting the method in details (see presentation), we conclude that : 
     274 - the matrix method should not start at the beginning of the run but after the litter and the biomass are at equilibrium 
     275 - that the stopping criterion should be based on the fluxes ( maybe two criterions in percentage and gC) 
     276 - should test others points (boreal and tropical) 
     277 
     278'''Results :''' 
     279 
     280We launched ORCHIDEE for 250Y on the same point described above then we restart and solve the system for 5 years. We obtained the same 
     281results as ORCHIDEE in 7000Y (we tested the PFT 6 also)! [[BR]] 
     282 
     283In order to optimize the length of the run, we have planned to add : 
     284 * a starting condition for the analytic solving of the system based on the equilibrium reached by the biomass and the litter (the length should not be more than 250Y)  
     285 * when the starting condition is OK, we solve the system until the stopping condition is reached (that will stop the job) 
     286 
     287 
     288 
    267289=== PS === 
    268290