wradlib.georef.satellite.dist_from_orbit#

wradlib.georef.satellite.dist_from_orbit(sr_alt, alpha, beta, r_sr_inv, re)[source]#

Returns range distances of SR bins (in meters) as seen from the orbit

With SR, we refer to precipitation radars based on space-born platforms such as TRMM or GPM.

Parameters:

  • sr_alt (float) – SR orbit height in meters.

  • alpha (numpy.ndarray) – Array of local zenith angles of the SR beams with shape (nscans, nbeams).

  • beta (numpy.ndarray) – Off-Nadir scan angle with shape (nbeams).

  • r_sr_inv (numpy.ndarray) – Array of ranges from ground to SR platform of shape (nbins).

  • re (float) – earth radius [m]

Returns:

ranges (numpy.ndarray) – Array of shape (nbeams, nbins) of PR bin range distances from SR platform in orbit.