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.


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


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