A multi-scale chemistry-transport model for atmospheric composition analysis and forecast
Mineral dust surface concentrations for a high resolution hemispheric simulation
- [2018/02] The OPTSIM code, numerical tool for gas and particles radiative properties modeling, in free access.
- [2017/09] 13th CHIMERE training course
- [2017/07] Publication of the [Mailler et al., 2017] GMD paper about the 2017 version.
- [2017/07] Update of the 'articles' page
- [2017/03] Release of the 2017 version
- [2016/04] Article [Briant et al., 2017] about the on-line development.
Short model description
The CHIMERE multi-scale model is primarily designed to produce daily forecasts of ozone, aerosols and other pollutants and make long-term simulations (entire seasons or years) for emission control scenarios. CHIMERE runs over a range of spatial scale from the regional scale (several thousand kilometers) to the urban scale (100-200 Km) with resolutions from 1-2 Km to 100 Km. On this server, documentation and source codes are proposed for the complete multi-scale model. CHIMERE proposes many different options for simulations which make it also a powerful research tool for testing parameterizations, hypotheses. CHIMERE is a parallel model that has been tested on machines ranging from desktop PCs running the GNU/Linux operating system, to massively parallel supercomputers (HPCD at ECMWF).
What's new in the chimere2017 release?
- New parameterizations for sea salt emissions.
- Optimization of AOD calculation for mineral dust
- Evaporation of secondary inorganic aerosols takes into account the gas/particle partitioning.
- Adjustment of some constants in model parameterizations (cut-off relative humidity for aerosol processes, deep convection activation threshold).
- In case of identical horizontal domain to that of WRF is taken into account, direct use of its surface pressure.
Numeric and software
- Separation of biogenic and sea salt emissions processing. The resulting emissions are saved respectively in BEMISSIONS.nc and SEMISSIONS.nc files.
- Changed order of (optional) arguments to chimere.sh; possibility to specify simulation end hour.
- New soil categories processing with a high-resolution database for the GREENFRAC variable
- Taking into account metal oxydes in reactions of SO2 with Fe and Mn
- Several bug fixes
The model code: sources, documentation, publications
- The CHIMERE Documentation .
- How to download the model source code
- To learn how to use and modify the model, training sessions are organized twice a year
- The Frequently Asked Questions page
- A detailed list of updates and bugs found in the previous version
- List of useful scripts for pre or post-processing
- List of publications using CHIMERE
- A wysiwyg Linux tool to easy plot the results of a simulation: CHIMPLOT
Maps of the CHIMERE users
About this website:
This server is designed to provide source codes of the model, data from long-term simulations, and experimental forecasts made at IPSL. All data provided on this server should be used in a professional context.
The CHIMERE model is provided under the GNU General Public License (since 2000)
Copyright (C) Institut Pierre-Simon Laplace, Ecole Polytechnique, INERIS, CNRS.
This server is located at the Ecole Polytechnique and maintened by Laurent MENUT.