{
  "sample_id": 156,
  "geometry_type": "simple_spline",
  "geometry_parameters": {
    "type": "simple_spline",
    "n_control_points": "5",
    "max_height": 0.1
  },
  "rq_target": 0.0015411635370061682,
  "rq_actual": 0.001541163537006168,
  "ra_actual": 0.0012455466901786013,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "catastrophic_leading_edge",
  "method": "hybrid",
  "grid_resolution": [
    288,
    122
  ],
  "physical_dimensions": [
    0.1752876323520973,
    0.04550001205140025
  ],
  "curvature_statistics": {
    "mean_slope": 0.0007751097696903096,
    "max_slope": 0.0016994768970939817,
    "height_range": 0.15563102004905027,
    "mean_height": -0.0038420618546355727,
    "std_height": 0.05434749664731303
  },
  "generation_timestamp": "2025-11-08T02:42:10.168609",
  "correlation_length_x": 0.03870311781185505,
  "correlation_length_y": 0.013668421238445999,
  "orientation": 30.0,
  "anisotropy_ratio": 2.8315719230976315,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 7,
    "perlin_persistence": 0.8182067825792773,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.498791528949948,
    "fractal_modes": 62
  }
}