pydda.cost_functions.calculate_fall_speed#

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