{
  "type": "minecraft:cache_once",
  "argument": {
    "type": "minecraft:add",
    "argument1": "tectonic:underground_river/noise/height_additive",
    "argument2": {
      "type": "minecraft:mul",
      "argument1": 0.03,
      "argument2": {
        "type": "minecraft:noise",
        "noise": "tectonic:underground_river/height",
        "xz_scale": 0.5,
        "y_scale": 1.6
      }
    }
  }
}