wradlib.atten.AttenMethods.pia_from_kdp

AttenMethods.pia_from_kdp(dr, *, gamma=0.08)

Retrieving path integrated attenuation from specific differential phase (Kdp).

The default value of gamma is based on [Carey et al., 2000].

Parameters:

• kdp (numpy.ndarray) – array specific differential phase Range dimension must be the last dimension.

• dr (float) – gate length (km)

• gamma (float) – linear coefficient (default value: 0.08) in the relation between Kdp phase and specific attenuation (alpha)

Returns:

output (numpy.ndarray) – array of same shape as kdp containing the path integrated attenuation