{
 "ocl_version": "0.1.0",
 "name": "Pudanal",
 "slug": "pudanal",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.919528343716138,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 636.0,
   "end_distance_m": 638.0,
   "start_elevation_m": 1335.7723160029825,
   "end_elevation_m": 1336.3307065698568,
   "min_gradient_pct": -10.38072944512578,
   "suppressed_max_gradient_pct": 31.38916779854526,
   "suppressed_location_m": [
    607.0,
    609.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.807821323547916,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 636.0,
   "end_distance_m": 639.0,
   "start_elevation_m": 1335.7723160029825,
   "end_elevation_m": 1336.606550642689,
   "min_gradient_pct": -8.110895861568679,
   "suppressed_max_gradient_pct": 31.29640664864534,
   "suppressed_location_m": [
    605.0,
    608.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.560106030241514,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 636.0,
   "end_distance_m": 641.0,
   "start_elevation_m": 1335.7723160029825,
   "end_elevation_m": 1337.1503213044946,
   "min_gradient_pct": -2.4301886166904296,
   "suppressed_max_gradient_pct": 30.778111387194258,
   "suppressed_location_m": [
    606.0,
    611.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.254620667131803,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 631.0,
   "end_distance_m": 641.0,
   "start_elevation_m": 1334.7248592377814,
   "end_elevation_m": 1337.1503213044946,
   "min_gradient_pct": 0.7541602779519962,
   "suppressed_max_gradient_pct": 29.32388996965301,
   "suppressed_location_m": [
    603.0,
    613.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.563652584633928,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 521.0,
   "end_distance_m": 541.0,
   "start_elevation_m": 1318.8000717408322,
   "end_elevation_m": 1322.712802257759,
   "min_gradient_pct": 4.06596770500073,
   "suppressed_max_gradient_pct": 27.014555456437392,
   "suppressed_location_m": [
    602.0,
    622.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.14938395795707,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 519.0,
   "end_distance_m": 544.0,
   "start_elevation_m": 1318.4558035117295,
   "end_elevation_m": 1323.2431495012188,
   "min_gradient_pct": 4.977233316758429,
   "suppressed_max_gradient_pct": 26.292131042533583,
   "suppressed_location_m": [
    602.0,
    627.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.334079535869478,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 494.0,
   "end_distance_m": 544.0,
   "start_elevation_m": 1314.076109733284,
   "end_elevation_m": 1323.2431495012188,
   "min_gradient_pct": 6.325719280588601,
   "suppressed_max_gradient_pct": 20.60861193851497,
   "suppressed_location_m": [
    591.0,
    641.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.815914938782498,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 447.0,
   "end_distance_m": 547.0,
   "start_elevation_m": 1307.8049554065947,
   "end_elevation_m": 1323.6208703453772,
   "min_gradient_pct": 10.0799090946864
  }
 ],
 "shape": {
  "ascent_concentration": 0.303,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 95.0,
  "shape_class": "sustained"
 },
 "length_m": 641.078226598226,
 "start_elevation_m": 1253.69516542969,
 "end_elevation_m": 1337.1722256958249,
 "endpoint_gain_m": 83.47706026613491,
 "overall_gradient_pct": 13.02135321442625,
 "accumulated_ascent_m": 83.83448039754694,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.560106030241514,
   "start_distance_m": 636.0,
   "end_distance_m": 641.0,
   "midpoint_distance_m": 638.5,
   "start_elevation_m": 1335.7723160029825,
   "end_elevation_m": 1337.1503213044946,
   "start_xy": [
    2767925.2484339844,
    1189752.0239472508
   ],
   "end_xy": [
    2767926.9877432757,
    1189756.7116755724
   ]
  },
  "max_10m": {
   "gradient_pct": 24.254620667131803,
   "start_distance_m": 631.0,
   "end_distance_m": 641.0,
   "midpoint_distance_m": 636.0,
   "start_elevation_m": 1334.7248592377814,
   "end_elevation_m": 1337.1503213044946,
   "start_xy": [
    2767923.4959766944,
    1189747.3412295477
   ],
   "end_xy": [
    2767926.9877432757,
    1189756.7116755724
   ]
  },
  "max_20m": {
   "gradient_pct": 19.563652584633928,
   "start_distance_m": 521.0,
   "end_distance_m": 541.0,
   "midpoint_distance_m": 531.0,
   "start_elevation_m": 1318.8000717408322,
   "end_elevation_m": 1322.712802257759,
   "start_xy": [
    2767898.1537244357,
    1189672.7108170043
   ],
   "end_xy": [
    2767903.934339164,
    1189691.7687468342
   ]
  },
  "max_25m": {
   "gradient_pct": 19.14938395795707,
   "start_distance_m": 519.0,
   "end_distance_m": 544.0,
   "midpoint_distance_m": 531.5,
   "start_elevation_m": 1318.4558035117295,
   "end_elevation_m": 1323.2431495012188,
   "start_xy": [
    2767897.161842214,
    1189670.9831268315
   ],
   "end_xy": [
    2767905.4556472143,
    1189694.3105070377
   ]
  },
  "max_50m": {
   "gradient_pct": 18.334079535869478,
   "start_distance_m": 494.0,
   "end_distance_m": 544.0,
   "midpoint_distance_m": 519.0,
   "start_elevation_m": 1314.076109733284,
   "end_elevation_m": 1323.2431495012188,
   "start_xy": [
    2767881.135656956,
    1189651.8927979188
   ],
   "end_xy": [
    2767905.4556472143,
    1189694.3105070377
   ]
  },
  "max_100m": {
   "gradient_pct": 15.815914938782498,
   "start_distance_m": 447.0,
   "end_distance_m": 547.0,
   "midpoint_distance_m": 497.0,
   "start_elevation_m": 1307.8049554065947,
   "end_elevation_m": 1323.6208703453772,
   "start_xy": [
    2767846.6094141253,
    1189621.4843378395
   ],
   "end_xy": [
    2767907.4131800914,
    1189696.5838443018
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.4301886166904296,
   "start_distance_m": 546.0,
   "end_distance_m": 551.0,
   "midpoint_distance_m": 548.5,
   "start_elevation_m": 1323.5379169564474,
   "end_elevation_m": 1323.4164075256128,
   "start_xy": [
    2767906.7604382997,
    1189695.8262641584
   ],
   "end_xy": [
    2767909.947177161,
    1189699.670393556
   ]
  },
  "min_10m": {
   "gradient_pct": 0.7541602779519962,
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 594.0,
   "start_elevation_m": 1326.7735568723426,
   "end_elevation_m": 1326.8489729001378,
   "start_xy": [
    2767889.272306789,
    1189729.346599683
   ],
   "end_xy": [
    2767897.108821124,
    1189732.3920781554
   ]
  },
  "min_20m": {
   "gradient_pct": 4.06596770500073,
   "start_distance_m": 579.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 589.0,
   "start_elevation_m": 1326.0357793591377,
   "end_elevation_m": 1326.8489729001378,
   "start_xy": [
    2767894.286647311,
    1189720.7444370901
   ],
   "end_xy": [
    2767897.108821124,
    1189732.3920781554
   ]
  },
  "min_25m": {
   "gradient_pct": 4.977233316758429,
   "start_distance_m": 576.0,
   "end_distance_m": 601.0,
   "midpoint_distance_m": 588.5,
   "start_elevation_m": 1325.7759535149053,
   "end_elevation_m": 1327.0202618440949,
   "start_xy": [
    2767895.4923755657,
    1189717.9973989574
   ],
   "end_xy": [
    2767899.0644111196,
    1189732.8112048416
   ]
  },
  "min_50m": {
   "gradient_pct": 6.325719280588601,
   "start_distance_m": 548.0,
   "end_distance_m": 598.0,
   "midpoint_distance_m": 573.0,
   "start_elevation_m": 1323.65973440146,
   "end_elevation_m": 1326.8225940417542,
   "start_xy": [
    2767908.066063877,
    1189697.3413023262
   ],
   "end_xy": [
    2767896.131106575,
    1189732.1821394486
   ]
  },
  "min_100m": {
   "gradient_pct": 10.0799090946864,
   "start_distance_m": 249.0,
   "end_distance_m": 349.0,
   "midpoint_distance_m": 299.0,
   "start_elevation_m": 1284.9810739204072,
   "end_elevation_m": 1295.0609830150936,
   "start_xy": [
    2767860.4200270087,
    1189522.7613347305
   ],
   "end_xy": [
    2767836.8755748672,
    1189532.31861563
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.919528343716138,
   "start_distance_m": 636.0,
   "end_distance_m": 638.0,
   "midpoint_distance_m": 637.0,
   "start_elevation_m": 1335.7723160029825,
   "end_elevation_m": 1336.3307065698568,
   "start_xy": [
    2767925.2484339844,
    1189752.0239472508
   ],
   "end_xy": [
    2767925.9444304053,
    1189753.8989376137
   ]
  },
  "max_3m": {
   "gradient_pct": 27.807821323547916,
   "start_distance_m": 636.0,
   "end_distance_m": 639.0,
   "midpoint_distance_m": 637.5,
   "start_elevation_m": 1335.7723160029825,
   "end_elevation_m": 1336.606550642689,
   "start_xy": [
    2767925.2484339844,
    1189752.0239472508
   ],
   "end_xy": [
    2767926.292440905,
    1189754.8364281529
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "texture_suppression": {
   "masked_fraction": 0.047,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 602.0,
     "end_m": 627.0,
     "raw_pct": 26.29,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 602.0,
     "end_m": 622.0,
     "raw_pct": 27.01,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 603.0,
     "end_m": 613.0,
     "raw_pct": 29.32,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    600.0,
    629.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2023_2767-1189_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T23:52:11+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-ch-ch/batch-switzerland-rchunk02.pbf",
  "osm_snapshot": "",
  "run_id": "texture-ch-ch-260911",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2767-1189"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Arosa",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}