{{{
#!html
<h1>IPSL-CM5A2-CHT-VLR configuration </h1>
}}}
----
[[PageOutline(1-3,Table of contents,,numbered)]]

Persons in charge: Anne Cozic, Didier Hauglustaine
----

# IPSL-CM5A2-CHT model #

'''IPSL-CM5A2-CHT''' is an ''' IPSL coupled climate model''' including atmosphere, land, ocean, sea ice, carbon cycle, and atmospheric chemistry and aerosols. The goal of this model is to introduce interactiv chemistry and aerosols cycle in [wiki:Doc/Config/IPSLCM5A2 IPSLCM5A2-VLR] version. 
Main characteritics of this model are the same than [wiki:Doc/Config/IPSLCM5A2 IPSLCM5A2-VLR] '''ORCA2-LIM2-PISCES x LMD 96x95x39, old LMDZ physics, ORCHIDEE with Choisnel hydrology (2 layers)''', we add '''INCA6 model'''. This model is available on Irene (TGCC) and !JeanZay (IDRIS) supercomputers and benefits from last developments of libIGCM running environment.

'''IPSL-CM5A2''' model includes :
 * model components :
  * '''LMDZ''' as atmospheric model ; 
  * '''NEMO''' as ocean model including sea ice (LIM2) and marine biogeochemistry (PISCES) ; 
  * '''ORCHIDEE''' as land model ;  
  * '''INCA''' as atmospheric chemistry and aerosols model ; 
 * tools :
  * '''OASIS3-MCT''' as parallel coupler ;
  * '''XIOS 2.0''' as I/O library ; 
  * '''libIGCM''' as running environment (scripts) to run the model and to perform post processing ;


# Technical details # 
For all technical details you can report to the  [wiki:Doc/Config/IPSLCM5A2#Technicaldetails IPSLCM5A2-VLR] description. We will describe here differences due to Inca model. 

## Compilation ## 

To compile you can choose between two target 
 * IPSLCM5A2CHT-VLR : compile Inca model to use the configuration NMHC_AER (chemistry and aerosols on troposphere) - For this specific target there is no experiments
 * IPSLCM5A2CHTS-VLR (default) : compile Inca model to use the configuration NMHC_AER_S (chemistry and aerosols on troposphere and stratosphere) 


## Experiments ## 

You can choose between two experiments 
 * S_historical 
 * S_piControl