pydda.cost_functions.calculate_fall_speed¶
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pydda.cost_functions.
calculate_fall_speed
(grid, refl_field=None, frz=4500.0)[source]¶ Estimates fall speed based on reflectivity.
Uses methodology of Mike Biggerstaff and Dan Betten
Parameters: Grid: Py-ART Grid
Py-ART Grid containing reflectivity to calculate fall speed from
refl_field: str
String containing name of reflectivity field. None will automatically determine the name.
frz: float
Height of freezing level in m
Returns: 3D float array:
Float array of terminal velocities