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trac

The major app for calculating forward or backward trajectories is trac. It is called with at least four (4) arguments:

# calling trac
$ ./trac  <dirlist> <ctl> <atm_in> <metbase>

The required arguments are:

  • dirlist: A file containing directories to be processed. Each directory has to have an own control parameter file and a starting point file.

  • ctl: In the control parameter file the configuration parameters can be set.

  • atm_in: The starting point file contains a list of starting points for the trajectory calculation.

  • metbase: Here, the path to the meteorological data files and their basename shall be given.

Example from the repository:

# minimal required input to run trac
$ ./trac data/dirlist trac.ctl atm_split.tab meteo/ei

In addition it is possible to append control parameters, giving the flag name first, followed by the parameter, all separated by a space. Example:

#
$ ./trac data/dirlist trac.ctl atm_split.tab meteo/ei ATM_BASENAME atm_diff GRID_BASENAME grid_diff

The following control parameters are effective in trac:

Todo

add flaglist here ….

A full list can be found in the doxygen manual.

Note: However, in the doxygen are so far no default values etc. provided.