wradlib.clutter.filter_gabella_b¶
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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 (array_like) –
- thrs (float) – Threshold below which the field values will be considered as no rain
Returns: output (array_like) – contains in each pixel the ratio between area and circumference of the meteorological echo it is assigned to or 0 for non precipitation pixels.
Examples