Roadmap

FLEXPART was originally developed to simulate the dispersion of dangerous substances from point sources and was validated for such applications with data from continental-scale tracer experiments. It was then used for case studies of intercontinental air pollution transport, also from forest fires. It was also used as a forecast tool for flight planning during field missions and for Lagrangian climatologies of global pollution transport, stratosphere-troposphere exchange and the global water cycle (Stohl., 2006; https://doi.org/10.1029/2005JD006888).

FLEXPART License





Version 11

Version Date released Download Important Changes Main author Libs required
11.0 2024-10-30 Source code Improved trajectory accuracy, shape defintion of aerosol particles, improved wet deposition, functionality from FLEXPART-CTM model, incorporation of Open Multi-Processing parallelisation. Lucie Bakels eccodes, netcdf (optional), openmp (optional)

Version 10

Version Date released Download Important Changes Main author Libs required
10.4.1 - n/a some corrections, mostly in makefile. Allows to compile without netcdf installed. Petra eccodes, netcdf, openmpi (optional)
* 10.4 2019-11-20 download:66 this is the version described in the Fp10 Paper. Ignacio/NILU grib_api/eccodes, netcdf, openmpi (optional)
10.3.x_beta 2019-07, not a release part of course tarball changes in SPECIES, minor changes - eccodes, netcdf (optional)
10.3beta5 commit 348abf6 2019-02-18 download:63 Wet deposition using cloud ice and water, skewed CBL turbulence, MPI version, etc; see Fp10 Paper. and Milestone 10 Ignacio, Espen and others (mostly NILU) -

Version 9

Note that versions 9.1 and earlier are not yet ready for Grib Version 2. Without applying some changes, you can only use Grib1 input data!

Version Date released Download Important Changes Main author Libs required
9.3 2016-06-02 downloads/54 implementation of CTBTO project. WARNING: this is not a production-ready version. Some functionality of Fp is not supported, see documentation. +Don (Borealscience) and others -
9.2 in preparation n/a major code review, effiency and bug fixes, see #101 +Petra (BOKU/University of Vienna) -
9.2beta 2014-11-05 n/a changeset:31 Grib2 met data supported, #101 netcdf output, unifies several separate additions, general streamlining; see Milestone 9.2 Harald (ETHZ), Ignacio (NILU) -
9.1 2014-07-03 n/a changeset:27 #94 namelist input Harald (ETHZ) see v8.2
9.0.3* 2018-06-01 downloads/60 bug fixes: #139 (bad do loop), #49 (erf type) +Petra see v8.2
9.0.2 2012-05-10 downloads/8 - - see v8.2
9.0.1 - downloads/7 - - see v8.2
9.0 - downloads/6 code in f90 free format (NILU) see v8.2

Version 8

Version Date released Download Important Changes Main author Libs required
8.2.3 2011-08-04 downloads/4 bugfix verttransform - see v8.2
8.2.2 2011-05-19 downloads/3 bugfix domainfill - see v8.2
8.2.1 2011-05-16 downloads/2 bugfix outgrid_ini, wetdepo - see v8.2
8.2 2010-11-29 downloads/5 supports GRIB2, some dynamic memory alloc, ... details. Also see documentation. NILU jasper>1.900.1 grib_api>1.8 emos>372(opt.)
8.1 2009-07-02 downloads/1 mostly bugfixes. More space for windfield names. details NILU jasper>1.900.1 grib_api>1.8 emos>372(opt.)
8.0 2008-09-02 n/a below/in-cloud wet scav., unified ECMWF/NFS, modified output format ... Sabine Eckhardt (NILU) jasper, grib_api

Note: A stable release (recommended) is marked by *.

Older versions

Version Year/Month Download Important Changes Main author Libs required
7 - - Not released? - -
6.4 2005-11 downloads/14 GFS version with S. Eckhardt -
6.2 - downloads/13 see documentation. - -
6.1 2005-02 downloads/12 convection improvements, domain-filling, output nests A. Stohl, C. Forster emos
6.0 - downloads/11 - - -
5.1 2004-03 downloads/10 better bwd simulations and i/o with P. Seibert and A. Frank -
5.0 2002-08 downloads/9 better bwd simulations and i/o with P. Seibert and A. Frank -
4 2001-06 - convection scheme with P. Seibert -
3 1999-07 - density correction with D. Thomson -
2 1997-10 - deposition added, validated with ETEX A. Stohl -
1 1996 - mean and turbulent transport A. Stohl -

FLEXPART developers

Currently active developers of FLEXPART

University of Vienna, BOKU, CTBTO

NILU

Geosphere Austria

Other institutes

Previously active developers

FLEXPART-WRF Roadmap

The reference of FLEXPART-WRF is:

J. Brioude, D. Arnold, A. Stohl, M. Cassiani, D. Morton, P. Seibert, W. Angevine, S. Evan, A. Dingwell, J. D. Fast, R. C. Easter, I. Pisso, J. Burkhart, and G. Wotawa (2013): The Lagrangian particle dispersion model FLEXPART-WRF version 3.1. Geoscientific Model Development, 6(6), 1889-1904, URL: ​http://www.geosci-model-dev.net/6/1889/.

Version Date released Download Comments
3.3.2 2017-06 downloads/58 Fixes ticket #174 (makefile - ifort).
3.3.1 2016-10 downloads/57 Fixes tickets #155, #157, #158, #160.
3.3 - downloads/56 -
3.2 (beta) - downloads/48 This version fixes the problems reported in tickets #99, #58, #103, #74. Some problems and with netcdf reading have been reported and fixes given by Alan Griffiths.
3.1 - downloads/44 The model description can be accessed at ​J. Brioude et al. (2013, GMD). Compared to version 3.0, it has bugfixes on heat flux, NetCDF output and CBL scheme. The code can be tested using testcase input data and the corresponding WRF input files
3.0 - downloads/32 Developed by J. Brioude et al. (2013). It is based on FLEXPART 9.02, with parallel computing capabilities, netCDF output and several options for the vertical wind among other characteristics. The code can be tested using testcase input data and the corresponding WRF input files.
FLEXPART for WRF - Link to GitHub Repository in Japan - many thanks to Saji N. Hameed for this development
FLEXPART for WRF - Link to NILU.no large file (440 MB) - many thanks to Jerome Fast for this development. Based on FLEXPART 6.2.

FLEXTRA Roadmap

Version Date released Download Important Changes Main author(s)
5.1 = alife 2017-04 n/a various improvements and adaptations A. Philipp, P. Seibert
5* 2011-12 downloads/25 Reading of grib2 format as in FLEXPART 8.2.2 (this implies Fortran90 with grib_api as module) S. Eckhardt?
4.0 2008-07 downloads/24 Merging GFS and ECMWF version, implementation of GRIB2 with grib_api library for GFS S. Eckhardt
MH 2006 n/a mixing height calculation and ouput - THIS IS A BRANCH D. Arnold
3.3 2000-09 n/a various changes -
3.2b 2000-03 downloads/21 Output of humidity data along trajectories; fix important bug in gridcheck_nests.f A. Stohl
3.2d 2000-06 downloads/23 Changes in variable names, output format P. Seibert
3.2c 2000-05 downloads/22 Bug fix: (avoid crash when the starting time of the first/last trajectory coincides with the first/last wind field) A. Stohl
3.1 1999-09 downloads/20 Introduction of the FLIGHT mode, bug fix in trajinterpol.f A. Stohl
3.0 1999-01 downloads/19 Use of global fields allowed (polar stereographic grids), Nesting allowed, CET option introduced, New method of adding random errors to uncertainty trajectories A. Stohl
2.0 1998-07 downloads/18 Various improvements and bug fixes, many related to isentropic trajectories and to PV A. Stohl, P. Seibert, G. Wotawa, P. James
1.0 1996 n/a - A. Stohl, G. Wotawa, P. Seibert