This icon runs the FLEXTRA trajectory model.
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From Macro/Python the icon can be called as flextra_run(). |
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A tutorial about using FLEXTRA in Metview can be found here. |
FLEXTRA is an atmospheric trajectory model used by a wide scientific community. It can be driven by meteorological input data from a variety of global and regional models including ECMWF analyses and forecasts. FLEXTRA can compute both forward and backward trajectories using various trajectory types such as: three-dimensional, model level, mixing layer, isobaric and isentropic trajectories. Trajectory computations can be carried out in the three different modes. These are as follows: In NORMAL mode, a group of trajectories is specified starting from the same point but at different times. Several starting points (thus several groups of trajectories) can be defined for a single FLEXTRA run.In CET mode, trajectories are generated starting from the points of a user-defined uniform grid in a three-dimensional domain.In FLIGHT mode, both the starting location and starting time for each trajectory can be set individually. This mode is useful to calculate e.g. trajectories released along the flight track of an aircraftVisit the FLEXTRA interface page to find out details about how FLEXTRA is used in Metview. A FLEXTRA-related tutorial can be found here. |
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