class wradlib.verify.PolarNeighbours(r, az, sitecoords, proj, x, y, nnear=9)

For a set of projected point coordinates, extract the neighbouring bin values from a data set in polar coordinates.

Use as follows:

First, create an instance of PolarNeighbours by passing all the information needed to georeference the polar radar data to the points of interest (see parameters).

Second, use the method extract in order to extract the values from a data array which corresponds to the polar coordinates.



See Routine verification measures for radar-based precipitation estimates.


Extracts the values from an array of shape (azimuth angles, range gages) which correspond to the indices computed during initialisation


Returns all bin coordinates in map projection


Returns bin coordinates only in the neighbourhood of points