wradlib.classify.ClassifyMethods.filter_window_distance#

ClassifyMethods.filter_window_distance(**kwargs)[source]#

2d filter looking for large reflectivity gradients.

This function counts for each bin in img the percentage of surrounding bins in a window of half size fsize which are not tr1 smaller than the central bin. The window is defined using geometrical distance.

Parameters

obj (xarray.DataArray | xarray.Dataset) – 2d polar data to which the filter is to be applied

Keyword Arguments

  • fsize (int) – Half-size [m] of the square window surrounding the central pixel

  • tr1 (float) – Threshold value

Returns

output (xarray.DataArray | xarray.Dataset) – an array with the same shape as img, containing the filter’s results.

See also

filter_gabella_a, filter_gabella_b