| | 267 | == MEETING (20/09/2011) == |
| | 268 | |
| | 269 | A meeting was organized in order to discuss the following problem : why is the algebraic method not more faster? |
| | 270 | |
| | 271 | Presents : Nicolas Viovy, Nicolas Vuichard, Philippe Peylin Bertrand Guenet and Martial Mancip |
| | 272 | |
| | 273 | After 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 | |
| | 280 | We launched ORCHIDEE for 250Y on the same point described above then we restart and solve the system for 5 years. We obtained the same |
| | 281 | results as ORCHIDEE in 7000Y (we tested the PFT 6 also)! [[BR]] |
| | 282 | |
| | 283 | In 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 | |
