wradlib.trafo.kdp_to_r#
- wradlib.trafo.kdp_to_r(kdp, f, a=129.0, b=0.85)[source]#
Estimating rainfall intensity directly from specific differential phase.
The general power law expression has been suggested by [Ryzhkov et al., 2005].
The default parameters have been set according to [Bringi et al., 2001].
Note
Please note that this way, rainfall intensities can become negative. This is an intended behaviour in order to account for noisy \(K_{DP}\) values.
- Parameters:
kdp (
float
ornumpy.ndarray
) – \(K_{DP}\) as array of floatsf (
float
) – radar frequency [GHz]Standard frequencies in X-band range between 8.0 and 12.0 GHz,
Standard frequencies in C-band range between 4.0 and 8.0 GHz,
Standard frequencies in S-band range between 2.0 and 4.0 GHz.
a (
float
) – linear coefficient of the power lawb (
float
) – exponent of the power law
- Returns:
output (
numpy.ndarray
) – array of rainfall intensity