{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Map two radars to a Cartesian grid\n\nMap the reflectivity field of two nearby ARM XSARP radars from antenna\ncoordinates to a Cartesian grid.\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "print(__doc__)\n\n# Author: Jonathan J. Helmus (jhelmus@anl.gov)\n# License: BSD 3 clause\n\nimport matplotlib.pyplot as plt\n\nimport pyart\nfrom pyart.testing import get_test_data\n\n# read in the data from both XSAPR radars\nxsapr_sw_file = get_test_data(\"swx_20120520_0641.nc\")\nxsapr_se_file = get_test_data(\"sex_20120520_0641.nc\")\nradar_sw = pyart.io.read_cfradial(xsapr_sw_file)\nradar_se = pyart.io.read_cfradial(xsapr_se_file)\n\n# filter out gates with reflectivity > 100 from both radars\ngatefilter_se = pyart.filters.GateFilter(radar_se)\ngatefilter_se.exclude_transition()\ngatefilter_se.exclude_above(\"corrected_reflectivity_horizontal\", 100)\ngatefilter_sw = pyart.filters.GateFilter(radar_sw)\ngatefilter_sw.exclude_transition()\ngatefilter_sw.exclude_above(\"corrected_reflectivity_horizontal\", 100)\n\n# perform Cartesian mapping, limit to the reflectivity field.\ngrid = pyart.map.grid_from_radars(\n    (radar_se, radar_sw),\n    gatefilters=(gatefilter_se, gatefilter_sw),\n    grid_shape=(1, 201, 201),\n    grid_limits=((1000, 1000), (-50000, 40000), (-60000, 40000)),\n    grid_origin=(36.57861, -97.363611),\n    fields=[\"corrected_reflectivity_horizontal\"],\n)\n\n# create the plot\nfig = plt.figure()\nax = fig.add_subplot(111)\nax.imshow(\n    grid.fields[\"corrected_reflectivity_horizontal\"][\"data\"][0],\n    origin=\"lower\",\n    extent=(-60, 40, -50, 40),\n    vmin=0,\n    vmax=48,\n)\nplt.show()"
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    },
    "language_info": {
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "mimetype": "text/x-python",
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.14.3"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 0
}