| 2 | | This page describes where you had to add the information so that libIGCM will copy a new input file of ORCHIDEE. |
| | 2 | |
| | 3 | Authors: D. Goll and J. Ghattas [[BR]] |
| | 4 | Last revision: 2020/02/28, S. Luyssaert [[BR]] |
| | 5 | |
| | 6 | == Objective == |
| | 7 | This help you to: (1) understand why libIGCM is used pass input files and ORCHIDEE and (2) how new input files can be passed to ORCHIDEE by making use of libIGCM. |
| | 8 | |
| | 9 | == Why using libIGCM for passing files == |
| | 10 | The ORCHIDEE code makes use of hard coded file names. Somewhere in the code, for example, there is the instruction to open the file PFTmap.nc which contains a description of the vegetation classified in PFTs for which the ORCHIDEE model was parameterized. When the experiment was configured to simulate land cover change, each year the model will have to read a different file despite it has to be called PFTmap.nc for the ORCHIDEE code to work. This is one of the tasks of libIGCM; if the model is in the year 1901, it will link the path of a PFT map for the year 1901 to the name PFTmap.nc. So, in the year 1901 ORCHIDEE will link the name PFTmap.nc to the PFT map for that year. Depending on the experiment one has in the mind, some input files only need to be read once at the start of the experiment, other need to be read every year, etc. As explained below, libIGCM can take care of this complexity.[[BR]] |
| | 11 | |
| | 12 | == Passing input files to ORCHIDEE == |
| | 13 | === Using libIGCM === |
| | 14 | |
