[
  {
    "eccharts_layer": [
      "500pv",
      "300pv"
    ],
    "prefered_units": "pv units",
    "styles": [
      "ct_magenta_i2_t3",
      "sh_blu_f02t30",
      "sh_gry_f0t20lst",
      "ct_vio_i1_t1"
    ],
    "match": [
      {
        "paramId": "60",
        "shortName": "pv"
      },
      {
        "long_name": "Potential vorticity"
      }
    ]
  }
]
