Note:
The registration for the online FLEXPART11 training is now open. Please register by 1 September 2026 via this link:
Register
The training will be focused on running FLEXPART11 for various research applications (e.g., volcanoes, radionuclides, greenhouse gases) and consist of lectures followed by practical hands-on sessions. Participants are expected to have a working FLEXPART11 installation and experience with the Linux command line (instructions for compiling and setting up FLEXPART11 will be sent ahead of the training).
The Lagrangian particle dispersion model FLEXPART
FLEXPART (“FLEXible PARTicle dispersion model”) is a Lagrangian transport and dispersion model suitable for the simulation of a large range of atmospheric transport processes. Apart from transport and turbulent diffusion, it is able to simulate dry and wet deposition, decay, and linear chemistry; it can be used in forward or backward mode, with prescribed sources (or receptors in backward applications) or in a domain-filling setting. It can be used from local to global scale.
FLEXPART is based on the trajectory model FLEXTRA (“FLEXible TRAjectory model”), which is still available here. FLEXPART has been a free and open software (see license) from the beginning and, over time has found a large international user community.
Download FLEXPART
- FLEXPART for meteorological input data from ECMWF and NCEP/GFS data
- FLEXPART for meteorological input data from WRF, AROME, COSMO, HIRLAM, and NorESM is available on the FLEXPART family page.
Information on how to get started, and get in contact with the developers and users community can be found here.