[
  {
    "eccharts_layer": "wave_sh1721",
    "styles": [
      "sh_wave_f0t10_red",
      "sh_wave_f0t10_purple",
      "ct_vio_i1_t1"
    ],
    "match": [
      {
        "paramId": "140117",
        "shortName": "h1721"
      },
      {
        "long_name": "Significant wave height of all waves with periods within the inclusive range from 17 to 21 seconds"
      }
    ]
  }
]