For each configuration, a complete installation of the chosen model
must be realised.
As mentioned above this installation can be done with MODIPSL software.
The following examples are given only for the IPSL Coupled Model, IPSLCM4_v1.
However it is really easy to transpose these examples to any other
IPSL model :
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.
At the moment two resolutions of this model are available LMDz
72x45x19 / ORCA 92x76x31 and LMDz 96x71x19 / ORCA 182x149x31.
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 models.
SECHIBA describes the short-timescale proceses (of 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 sources files, without driver to turn in offline mode
ORCHIDEE_OL : Source files with a CVS tag + driver with a CVS tag + IOIPSL sources with the "old" CVS tag
ORCHIDEE_OL2 : Source files + driver + IOIPSL sources
ORCHIDEE_IO2 : Source files with a CVS tag + driver without a CVS tag + 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 Symtem
CNRS - Institut Pierre Simon Laplace
Université Pierre et Marie Curie
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