pyart.correct.est_zdr_snow#

pyart.correct.est_zdr_snow(radar, ind_rmin=10, ind_rmax=500, zmin=0.0, zmax=30.0, snrmin=10.0, snrmax=50.0, rhohvmin=0.97, kept_values=[2], phidpmax=10.0, kdpmax=None, tempmin=None, tempmax=None, elmax=None, zdr_field=None, rhohv_field=None, phidp_field=None, temp_field=None, snr_field=None, hydro_field=None, kdp_field=None, refl_field=None)[source]#

Filters out all undesired data to be able to estimate ZDR bias in snow

Parameters:

  • radar (Radar) – radar object

  • ind_rmin, ind_rmax (int) – Min and max range index where to look for snow

  • zmin, zmax (float) – The minimum and maximum reflectivity to consider the radar bin suitable snow

  • snrmin, snrmax (float) – The minimum and maximum SNR to consider the radar bin suitable snow

  • rhohvmin (float) – Minimum RhoHV to consider the radar bin suitable snow

  • kept_values (list of int) – The hydrometeor classification values to keep

  • phidpmax (float) – Maximum PhiDP to consider the radar bin suitable snow

  • kdpmax (float or None) – Maximum KDP. If not none this is the maximum KDP value to consider the radar bin suitable snow

  • tempmin, tempmax (float or None) – If not None, the minimum and maximum temperature to consider the radar bin suitable snow

  • elmax (float) – Maximum elevation

  • zdr_field, rhohv_field, refl_field, phidp_field, kdp_field, temp_field,

  • snr_field, hydro_field (str) – Field names within the radar object which represent the differential reflectivity, co-polar correlation, reflectivity, differential phase, specific differnetial phase, signal to noise ratio, hydrometeor classification and temperature fields. A value of None will use the default field name as defined in the Py-ART configuration file.

Returns:

zdr_snow_dict (dict) – The ZDR data complying with specifications and metadata