pyart.correct.sun_power#

pyart.correct.sun_power(solar_flux, pulse_width, wavelen, antenna_gain, angle_step, beamwidth, coeff_band=1.2)[source]#

computes the theoretical sun power detected at the antenna [dBm] as it would be without atmospheric attenuation (sun power at top of the atmosphere) for a given solar flux and radar characteristics

Parameters:

  • solar_flux (float array) – the solar fluxes measured at 10.7 cm wavelength [10e-22 W/(m2 Hz)]

  • pulse_width (float) – pulse width [s]

  • wavelen (float) – radar wavelength [m]

  • antenna_gain (float) – the antenna gain [dB]

  • angle_step (float) – integration angle [deg]

  • beamwidth (float) – 3 dB-beamwidth [deg]

  • coeff_band (float) – multiplicative coefficient applied to the inverse of the pulse width to get the effective bandwidth

Returns:

pwr_det (float array) – the detected power

References

Altube P., J. Bech, O. Argemi, T. Rigo, 2015: Quality Control of Antenna Alignment and Receiver Calibration Using the Sun: Adaptation to Midrange Weather Radar Observations at Low Elevation Angles