IPSLCM4_v1 : Contains the Global ocean
dynamics model (ORCA)
with the atmospherics, physics and dynamics model (LMDz) and and the
sea ice dynamics and thermodynamics model (LIM) and the land surface
processes model (ORCHIDEE with SECHIBA only) as well as the OASIS
coupler. IOIPSL : IOPSL sources,
documentation and examples
| ORCHIDEE is divided in 3 modules, two based on existing models and a newly developped one. The hydrological module SECHIBA which has been developped as a set of surface parmaterizations for an atmospheric general circulation model. SECHIBA describes the short-timescale processes (in the order of a few minutes to hours) of energy and water exchanges between the atmosphere and biosphere. The parameterizations of photosynthesis follows [ Earquhar et al. (1980)] for C3 plants and [Collatz et al. (1992)] for C4 plants, stomatal conductance is calculated following [Ball et al. (1987)] Time step of the hydrological module is of the order of 30 minutes. |
ORCHIDEE : Only source files,
without a driver to turn in offline mode ORCHIDEE_OL : Source files with
a CVS tag in addition to a driver with a CVS tag and the IOIPSL sources with the "old" CVS tag ORCHIDEE_OL2 : Source files in
addition to a driver and the IOIPSL sources ORCHIDEE_IO2 : Source files with
a CVS tag in addition to a driver without a CVS tag and the IOIPSL Fortran90 sources| The atmospheric component of the IPSL-CM4 model, LMDZ, is a classical atmospheric general circulation model, inheritated from the original climate model of Laboratoire de Météorologie Dynamique [Sadourny and Laval, 1984]. The model can be schematically presented as the coupling between a dynamical core and a set of physical parameterizations. |
LMDZ : is the component for atmospheric dynamics and physics LMDZOR : Atmospheric general circulation model and the land surface process model, ORCHIDEE. LMDZ4OR : Atmospheric general circulation model (LMDZ4) and the land surface process model, ORCHIDEE. LMDZOR_V1 : Atmospheric general circulation model (LMDZ.3.3) and the land surface process model, ORCHIDEE.
Several resolutions are available (96x71x19, by default).
| ORCA is the generic name given to the global ocean configurations using the OPA System. Its specificity lies on the horizontal curvilinear mesh used to overcome the North Pole singularity found for geographical meshes. The common geographical coordinate system has a singular point at the North Pole which cannot be easily treated in a global model without filtering. A solution consists in introducting an appropiate coordinate transformation which shifts the singular point on land [Madec and Imbart 1996, Murray 1996] LIM (Louvain-la-Neuve sea-ice model) is a thermodynamic-dynamic sea ice model specifically designed for climates studies. |
ORCA2 : is the Horizontal resolution available through the standard configuration. An other resolution ORCA4, is available. ORCA2_LIM : is a global configuration using the ocean dynamics OPA and the sea-ice model LIM at a mean resolution of 2° in latitude and longitude EOSF_ORCA2_LIM : It is not available ORCA4_LIM : is a global configuration using the ocean dynamics OPA and the sea-ice model LIM at a mean resolution of 2° in latitude and longitude ORCA2_LIM_TRC : is the global ORCA 2 ° ocean model and IPSL LIM ice model, Tracer Model with Tracer Age ORCA2_OFF_TRC : Tracer model using offline dynamics of ORCA 2° ocean EEL2 : Zonally periodical channel, resolution 2km EEL2_LOBSTER1 : Zonnally periodical channel with lobster1 biological model, resolution 2km EEL6 : Zonally periodical channel, resolution 6km EEL6_LOBSTER1 : Zonnally periodical channel with lobster1 biological model, resolution 2km TOY : Configuration used only by engineers Opa Syytem
2. 1 Installation of the IPSLCM4_v1
coupled model
2. 2 Updating procedure for the
IPSLCM4_v1 coupled model
2.2.1 By keeping the same tag for each component of
this model
2.2.2 By changing a tag of at least one component of
this model
2.3
Defining the configuration
2.3.1 Installation and configuration of the makefiles
2.3.2 Executables creation
2.3.3 Low resolution compilation - ORCA4xLMD7245
2.3.4 Medium resolution compilation - ORCA2xLMD9671
2.3.5 Compilation successfully
2.3.6 Encountering compilation problems with ORCA
2.3.7 Recompiling the model
2.4
Launching script preparation
2.4.1 Platform identication
2.4.2 Experience paramaterization
2.5 Post treatment scripts preparation
2.6 Simulation setup
2.6.1 CPU limits and memory
2.6.2 Variables responsible for output frequency
2.6.3 Post treatment flags
2.6.4 Initialising a simulation
2.6.5 Launch a simulation from a RESTART file of an
identical simulation
2.6.6 Launch a simulation from a RESTART file of an
other simulation
2.7
Launching a simulation
2.8
Relaunching a simulation
