pyart.correct.sun_retrieval#
- pyart.correct.sun_retrieval(az_rad, az_sun, el_rad, el_sun, sun_hit, sun_hit_std, az_width_co=None, el_width_co=None, az_width_cross=None, el_width_cross=None, is_zdr=False)[source]#
Estimates sun parameters from sun hits
- Parameters:
az_rad, az_sun, el_rad, el_sun (float array) – azimuth and elevation values of the sun and the radar
sun_hit (float array) – sun hit value. Either power in dBm or ZDR in dB
sun_hit_std (float array) – standard deviation of the sun hit value in dB
az_width_co, el_width_co, az_width_cross, el_width_cross (float) – azimuth and elevation antenna width for each channel
is_zdr (boolean) – boolean to signal that is ZDR data
- Returns:
val, val_std (float) – retrieved value and its standard deviation
az_bias, el_bias (float) – retrieved azimuth and elevation antenna bias respect to the sun position
az_width, el_width (float) – retrieved azimuth and elevation antenna widths
nhits (int) – number of sun hits used in the retrieval
par (float array) – and array with the 5 parameters of the Gaussian fit