Model Developments


Source Code

Reference Simulations

Group Activities & Contact


When major modifications on the trunk have been done a new tag is created. A tag is a referenced version of a specific revision number of the trunk. In this section are presented the main steps "tags" of the trunk of ORCHIDEE. For each tag, the differences with the precedent version are described. Only physical or important informatic differences will be described.


Branch which is a copy from the tag 2_1 containing some bug corrections and technical enhencements to run with DYNCMICO-LMDZ.


Tag containing some enhencement but keeping the same physics as tag 2_0.


Tag used for CMIP6


Many improvements and corrections have been done. Many new features have been added.
All the bugs corrections and the new features are presented in the following release notes Tags/196


You can get this version with modipsl IPSL SCE or by following this web link :

Even if this tag is not completely present in development tree of the model in ORCHIDEE wiki, it is a big step to next ORCHIDEE_1_9_6 major version.

Since the last ORCHIDEE_1_9_5_1 version, some important parts of the model has been improved, reviewed or corrected :

  1. The change in units in STOMATE (i.e definition of variables in total m² not m²*veget_max) induced several modifications in the vegetation dynamics (DGVM) that was not taken into account.
    See for more informations on DGVM corrections.
    New DGVM variables have been added in stomate_history file : ADAPTATION, REGENERATION, CN_IND, WOODMASS_IND, ESTABTREE and ESTABGRASS.
  2. New optionnal field_out_names, fields_out, field_in_names, fields_in arrays are given from ORCHIDEE to LMDz.
    This modification of the interface has already produce a new version of CMIP5 IPSL couple configuration. IPSLCM5A_C with 2D couple carbon fluxes.
  3. All ORCHIDEE_OL drivers have been parallelized and cleaned.
  4. Global carbon mass balance has been computed and save with cMassVariation variable in stomate_history and cBal_lands in MONITORING web site produced with libIGCM scripts for ORCHIDEE (see OOL_SEC_STO directory).
  5. Case of reforestration has been treated with historical (or future) LAND USE activated.

You can get all the changes between this new version and previous ORCHIDEE_1_9_5_1 tag, following this link :


Version used for CMIP5 coupled carbon simulations. Final move to SVN.
You can follow the changes made on the CVS system here : (Warning : , need a password).


Version used for CMIP5 coupled simulations. This version exists at CVS and SVN.


Parallel "MERGE" version with 13 PFTs in STOMATE.


Last standard STOMATE model (with 12 PFTs). This is a branch and should change in the future.
This is the right version with a lot of bug corrections.


04/08/2006 : ajout correction hdry hydrolc + slowproc land_use (with only one year). The version orchidee_1_9_1 contains many bugs and should not be used. This link describes those corrections : Differences orchidee_1_9_1-1_9_2.


../../.... : Tag japan. Some problems have been corrected in version orchidee_1_9_1 for parallelization. See this link : Differences orchidee_1_9-1_9_1.


../../.... : Add parallelization.
This version has many bugs and shouldn't be used. The differencies between orchidee_1_8 and orchidee_1_9 are describe here Differences orchidee_1_8-1_9?.
Here is a presentation of differencies between versions 1.3 - 1.6 and series 1.9 :


../../.... : First merge of FH/NdN in HEAD branch.
This version has many bugs and shouldn't be used. The differencies between orchidee_1_7 and orchidee_1_8 are describe here Differences orchidee_1_7-1_8? .


11/07/2006 : working branch for parallel version.
This version has many bugs and shouldn't be used.


09/15/2006 : Intermediate TAG in root of parallel branch ORCHIDEE_PARA. The differencies between orchidee_1_2 and orchidee_1_7 are describe here Differences orchidee_1_2-1_7? .


../../.... : That is the end of "reference branch". Implementation of Nathalie De Noblet modifications.
This is the right version with a lot of bug corrections.
Here is a presentation of differencies between versions 1.3 - 1.6 and series 1.9 :


11/07/2006 : First implementation of so called "orchidee_beton". It contains modifications of Frederic Hourdin.
This version has many bugs and shouldn't be used.
Here is a presentation of differencies between versions 1.4 and 1.5 :


09/01/2005 : TAG for LOOP couple model.


04/01/2004 : TAG version used for IPCC AR4 for IPSL_CM4_v1_OASIS3 couple model. The differencies between orchidee_1_2 and orchidee_1_3 are describe here Differences orchidee_1_2-1_3? .


03/04/2003 : Beginning of reference branch. This the beginning of the so called "reference branch" by people.
This branch has 4 TAGs :

  • orchidee_1_3 : This TAG has a branch for adding compilation in brodie IDRIS calculator : orchidee_1_3_1.
    • This specific branch orchidee_1_3_1 won't be compared because there is no modification on source code.
    • Only makefiles were updated.
  • orchidee_1_4
  • orchidee_1_5
  • orchidee_1_6

The differencies between orchidee_1_1 and orchidee_1_2 are describe here Differences orchidee_1_1-1_2 .


12/04/2002 : first reference version (not describe here).


03/02/2002 : first ORCHIDEE version (not describe here).


08/02/2000 : ORCHIDEE CVS creation point.

Last modified 5 years ago Last modified on 2019-04-10T08:56:03+02:00