Map a single radar to a Cartesian grid

Map the reflectivity field of a single radar from Antenna coordinates to a Cartesian grid.

Python source code: plot_map_one_radar_to_grid.py

print __doc__

# Author: Jonathan J. Helmus (jhelmus@anl.gov)
# License: BSD 3 clause

import numpy as np
import matplotlib.pyplot as plt
import pyart

# read in the data
RADAR_FILE = '110635.mdv'
radar = pyart.io.read_mdv(RADAR_FILE)

# mask out last 10 gates of each ray, this removed the "ring" around th radar.
radar.fields['reflectivity']['data'][:, -10:] = np.ma.masked

# perform Cartesian mapping, limit to the reflectivity field.
grid = pyart.map.grid_from_radars(
    (radar,),
    grid_shape=(241, 241, 2),
    grid_limits=((-123000.0, 123000.0), (-123000.0, 123000.0),
                 (1500, 2000)),
    fields=['reflectivity'])

# create the plot
fig = plt.figure()
ax = fig.add_subplot(111)
ax.imshow(grid.fields['reflectivity']['data'][1], origin='lower')
plt.show()

Total running time of the example: 33.11 seconds