flextra - 5.0-17 main

Trajectory models are important tools for studying transport phenomena
in the atmosphere. In the environmental sciences, they are often used to
establish source-receptor relationships of air pollutants.
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FLEXTRA can be used to calculate different types of forward or backward
trajectories, and has facilities to estimate the uncertainty of trajectories.
It is specifically designed to compute long time sequences of trajectories
for many receptor locations.
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FLEXTRA may be used with the Metview meteorological workstation to
visualize trajectories.