up to [FtAbout About FLEXTRA]

== FLEXTRA Roadmap ==

This roadmap gives an overview of the development FLEXTRA ''trajectory model'' versions. It shall be expanded back into the past. Order is reverse chronologically. 

At this moment, no new versions are under preparation.


||'''Version'''|| '''Date released'''||'''Download'''||'''Important changes'''||'''Main author(s)'''||
||1.0||  1996||--||--||A. Stohl, G. Wotawa, P. Seibert||
||2.0|| 7/1998||download:18||Various improvements and bug fixes, many related to isentropic trajectories and to PV||A. Stohl, P. Seibert, G. Wotawa, P. James||
||3.0|| 1/1999||download: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||
||3.1|| 9/1999||download:20||Introduction of the FLIGHT mode, bug fix in `trajinterpol.f` ||A. Stohl ||
||3.2b|| 3/2000||download:21||Output of humidity data along trajectories; fix important bug in `gridcheck_nests.f` ||A. Stohl ||
||3.2c|| 5/2000||download:22||Bug fix: (avoid crash when the starting time of the first/last trajectory coincides with the first/last wind field ||A. Stohl ||
||3.2d|| 6/2000||download:23||Changes in variable names, output format ||P. Seibert||
||4.0|| 7/2008||download:24||Merging GFS and ECMWF version, implementation of GRIB2 with API library for GFS ||S. Eckhardt ||
||'''5.0*'''|| 12/2011||download:25||Reading of grib2 format as in FLEXPART 8.2.2 (this implies Fortran90 with grib_api as module)|| S. Eckhardt? ||

'''* recommended Version! '''