radct −− performs common thresholds on the radial velocity and reflectivity along radar rays
radct [-h][-c h(km)][-r min_range][-s]
radct reads a common data format file on the standard input consisting of a volume of radar data in range−ray format. A common data format file is written to the standard output with reflectivity and radial velocity thresholded according to the command line arguments.
Command Line
Arguments
[-h] displays a usage message and exit;
[-c val] height in km of a layer where data will be set
to bad.
[-r val] minimum range before which data is set to bad.
[-s] attempts to eliminate specular reflection by
discarding gates
whose range value would put them beyond the surface
regardless where
the ray is pointing to. This is an attempt of implementing
the
technique described by Testud. It, further discard gates
making a ring
centered at the airplane and radius equal to the altitude of
the plane.
Input
The input file must meet certain requirements. The following
fields are axpected: static field range (distance from radar
in km); variable scalar fields az(azimuthal angle in degrees
-- positive clockwise from north), el(elevation angle in
degrees -- positive above the horizontal), alt (altitude in
km); variable 1D-fields index by range: dbz(reflectivity
factor), vr(radial velocity).
Output
The output file has the same structure as the input, but
it
contains the thresholded variables.
Carlos Lopez Carrillo
GRC, New Mexico Tech