radars : tuple of Radar objects.
Radar objects which will be mapped to the Cartesian grid.
grid_shape : 3-tuple of floats
Number of points in the grid (z, y, x).
grid_limits : 3-tuple of 2-tuples
Minimum and maximum grid location (inclusive) in meters for the
z, y, x coordinates.
grid_origin : (float, float) or None
Latitude and longitude of grid origin. None sets the origin
to the location of the first radar.
fields : list or None
List of fields within the radar objects which will be mapped to
the cartesian grid. None, the default, will map the fields which are
present in all the radar objects.
refl_filter_flag : bool
True to filter the collected points based on the reflectivity field.
False to perform no filtering. Gates where the reflectivity field,
specified by the refl_field parameter, is not-finited, masked or
has a value above the max_refl parameter are excluded from the
grid interpolation.
refl_field : str
Name of the field which will be used to filter the collected points.
A value of None will use the default field name as defined in the
Py-ART configuration file.
max_refl : float
Maximum allowable reflectivity. Points in the refl_field which are
above is value are not included in the interpolation. None will
include skip this filtering.
roi_func : str or function
Radius of influence function. A functions which takes an
z, y, x grid location, in meters, and returns a radius (in meters)
within which all collected points will be included in the weighting
for that grid points. Examples can be found in the
example_roi_func_constant,
example_roi_func_dist, and
example_roi_func_dist_beam.
Alternatively the following strings can use to specify a built in
radius of influence function:
- constant: constant radius of influence.
- dist: radius grows with the distance from each radar.
- dist_beam: radius grows with the distance from each radar
and parameter are based of virtual beam sizes.
The parameters which control these functions are listed in the
Other Parameters section below.
map_roi : bool
True to include a radius of influence field in the returned
dictionary under the ‘ROI’ key. This is the value of roi_func at all
grid points.
weighting_function : ‘Barnes’ or ‘Cressman’
Functions used to weight nearby collected points when interpolating a
grid point.
toa : float
Top of atmosphere in meters. Collected points above this height are
not included in the interpolation.
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