{
  "weather": {
    "horizontal_parent_km": 9,
    "horizontal_nested_km": 3,
    "vertical_levels": 50
  },
  "regional_native": {
    "shape_x_y_z": [
      151,
      91,
      16
    ],
    "longitude_step_deg": 0.01000213623046875,
    "latitude_step_deg": 0.009998321533203125,
    "approx_dx_m": 727.5432031633763,
    "approx_dy_m": 1113.0131530761719,
    "surface_layer_AGL_m": [
      0,
      20
    ],
    "layer_tops_AGL_m": [
      20.0,
      50.0,
      100.0,
      150.0,
      200.0,
      300.0,
      450.0,
      650.0,
      900.0,
      1200.0,
      1600.0,
      2100.0,
      2800.0,
      3600.0,
      5000.0,
      10000.0
    ]
  },
  "regional_display": {
    "shape_x_y_z": [
      96,
      91,
      16
    ],
    "approx_dx_m": 1158.2321860311413,
    "approx_dy_m": 1114.7474982652916
  },
  "near_field": {
    "boxes": 3,
    "shape_x_y_z": [
      96,
      96,
      96
    ],
    "each_horizontal_extent_m": [
      8000,
      8000
    ],
    "vertical_extent_AGL_m": [
      0,
      2000
    ],
    "spacing": "Nonuniform asinh bins concentrated near each outlet; not physical CFD resolution",
    "finest_x_bin_m": 0.10152185361429808,
    "precision_limit": "Finite particle residence reconstruction; no particle-count convergence or sub-metre accuracy established"
  },
  "images": {
    "scientific_reference_pixels": [
      3840,
      2160
    ],
    "native_snapshot_pixels": [
      1440,
      1000
    ],
    "browser": "Viewport-dependent adaptive canvas,0.65–1.0×CSS pixels; not a fixed scientific grid"
  },
  "transport": "Lagrangian3D trajectories,499920 actual source particles;1s early-age substeps during the first900s, later native adaptive transport",
  "actual_hours": 360
}