wradlib.clutter.filter_gabella_b

wradlib.clutter.filter_gabella_b(img, thrs=0.0)

Second part of the Gabella filter comparing area to circumference of contiguous echo regions.

Parameters:

• img (numpy.ndarray)

• thrs (float) – Threshold below which the field values will be considered as no rain

Returns:

output (numpy.ndarray) – contains in each pixel the ratio between area and circumference of the meteorological echo it is assigned to or 0 for non precipitation pixels.

See also

filter_gabella, filter_gabella_a

Examples

See Clutter detection using the Gabella approach.