{
 "ocl_version": "0.1.0",
 "name": "Le Perru d'Amont",
 "slug": "le-perru-d-amont",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.13352924758374,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 5494.0,
   "end_distance_m": 5496.0,
   "start_elevation_m": 1258.651275650015,
   "end_elevation_m": 1259.5739462349666,
   "min_gradient_pct": -47.363668274715565,
   "suppressed_max_gradient_pct": 68.39671861639545,
   "suppressed_location_m": [
    5517.0,
    5519.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.85060883674214,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 5494.0,
   "end_distance_m": 5497.0,
   "start_elevation_m": 1258.651275650015,
   "end_elevation_m": 1259.8167939151172,
   "min_gradient_pct": -43.23281740503262,
   "suppressed_max_gradient_pct": 57.02273297471644,
   "suppressed_location_m": [
    5517.0,
    5520.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.0662056270603,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_unresolved"
   ],
   "start_distance_m": 5494.0,
   "end_distance_m": 5499.0,
   "start_elevation_m": 1258.651275650015,
   "end_elevation_m": 1260.054585931368,
   "min_gradient_pct": -29.78820472074858,
   "suppressed_max_gradient_pct": 46.07398565365202,
   "suppressed_location_m": [
    5516.0,
    5521.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.43954251416062,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 6623.0,
   "end_distance_m": 6633.0,
   "start_elevation_m": 1350.1650653331455,
   "end_elevation_m": 1352.3090195845616,
   "min_gradient_pct": -18.678302431067095,
   "suppressed_max_gradient_pct": 38.24192197816501,
   "suppressed_location_m": [
    5450.0,
    5460.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.47701658427968,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 6623.0,
   "end_distance_m": 6643.0,
   "start_elevation_m": 1350.1650653331455,
   "end_elevation_m": 1354.2604686500015,
   "min_gradient_pct": -15.625601120998454,
   "suppressed_max_gradient_pct": 27.61668371530959,
   "suppressed_location_m": [
    4791.0,
    4811.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.27043353548106,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 6623.0,
   "end_distance_m": 6648.0,
   "start_elevation_m": 1350.1650653331455,
   "end_elevation_m": 1355.2326737170158,
   "min_gradient_pct": -15.522217715357328,
   "suppressed_max_gradient_pct": 25.607097009277823,
   "suppressed_location_m": [
    4788.0,
    4813.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.76056299314905,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6591.0,
   "end_distance_m": 6641.0,
   "start_elevation_m": 1344.5578100781086,
   "end_elevation_m": 1353.938091574683,
   "min_gradient_pct": -15.241289119762314
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.401891607275502,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6587.0,
   "end_distance_m": 6687.0,
   "start_elevation_m": 1343.7766245651576,
   "end_elevation_m": 1362.178516172433,
   "min_gradient_pct": -14.402560517732354
  }
 ],
 "shape": {
  "ascent_concentration": 0.277,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 384.0,
  "shape_class": "sustained"
 },
 "length_m": 6733.727839835871,
 "start_elevation_m": 768.0692953491102,
 "end_elevation_m": 1366.0305844687507,
 "endpoint_gain_m": 597.9612891196405,
 "overall_gradient_pct": 8.880092919440226,
 "accumulated_ascent_m": 657.2212478290644,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.0662056270603,
   "start_distance_m": 5494.0,
   "end_distance_m": 5499.0,
   "midpoint_distance_m": 5496.5,
   "start_elevation_m": 1258.651275650015,
   "end_elevation_m": 1260.054585931368,
   "start_xy": [
    2575273.294235082,
    1156798.4257950743
   ],
   "end_xy": [
    2575271.0601676567,
    1156793.9526600728
   ]
  },
  "max_10m": {
   "gradient_pct": 21.43954251416062,
   "start_distance_m": 6623.0,
   "end_distance_m": 6633.0,
   "midpoint_distance_m": 6628.0,
   "start_elevation_m": 1350.1650653331455,
   "end_elevation_m": 1352.3090195845616,
   "start_xy": [
    2575698.0234562987,
    1156325.143434701
   ],
   "end_xy": [
    2575697.3944438556,
    1156315.1632375899
   ]
  },
  "max_20m": {
   "gradient_pct": 20.47701658427968,
   "start_distance_m": 6623.0,
   "end_distance_m": 6643.0,
   "midpoint_distance_m": 6633.0,
   "start_elevation_m": 1350.1650653331455,
   "end_elevation_m": 1354.2604686500015,
   "start_xy": [
    2575698.0234562987,
    1156325.143434701
   ],
   "end_xy": [
    2575696.765431413,
    1156305.1830404785
   ]
  },
  "max_25m": {
   "gradient_pct": 20.27043353548106,
   "start_distance_m": 6623.0,
   "end_distance_m": 6648.0,
   "midpoint_distance_m": 6635.5,
   "start_elevation_m": 1350.1650653331455,
   "end_elevation_m": 1355.2326737170158,
   "start_xy": [
    2575698.0234562987,
    1156325.143434701
   ],
   "end_xy": [
    2575696.45042716,
    1156300.192973112
   ]
  },
  "max_50m": {
   "gradient_pct": 18.76056299314905,
   "start_distance_m": 6591.0,
   "end_distance_m": 6641.0,
   "midpoint_distance_m": 6616.0,
   "start_elevation_m": 1344.5578100781086,
   "end_elevation_m": 1353.938091574683,
   "start_xy": [
    2575699.930668018,
    1156357.0862718879
   ],
   "end_xy": [
    2575696.8904370517,
    1156307.1791298036
   ]
  },
  "max_100m": {
   "gradient_pct": 18.401891607275502,
   "start_distance_m": 6587.0,
   "end_distance_m": 6687.0,
   "midpoint_distance_m": 6637.0,
   "start_elevation_m": 1343.7766245651576,
   "end_elevation_m": 1362.178516172433,
   "start_xy": [
    2575700.146672184,
    1156361.0804354034
   ],
   "end_xy": [
    2575696.0506991954,
    1156261.2197203075
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -29.78820472074858,
   "start_distance_m": 4718.0,
   "end_distance_m": 4723.0,
   "midpoint_distance_m": 4720.5,
   "start_elevation_m": 1210.3731475506363,
   "end_elevation_m": 1208.8837373145989,
   "start_xy": [
    2575512.9082207987,
    1157491.8033267837
   ],
   "end_xy": [
    2575510.744713723,
    1157487.2959988192
   ]
  },
  "min_10m": {
   "gradient_pct": -18.678302431067095,
   "start_distance_m": 4916.0,
   "end_distance_m": 4926.0,
   "midpoint_distance_m": 4921.0,
   "start_elevation_m": 1227.4552027323564,
   "end_elevation_m": 1225.5873724892497,
   "start_xy": [
    2575442.7220116253,
    1157308.7457216375
   ],
   "end_xy": [
    2575439.9357197583,
    1157299.1417534563
   ]
  },
  "min_20m": {
   "gradient_pct": -15.625601120998454,
   "start_distance_m": 6136.0,
   "end_distance_m": 6156.0,
   "midpoint_distance_m": 6146.0,
   "start_elevation_m": 1307.7834602282337,
   "end_elevation_m": 1304.658340004034,
   "start_xy": [
    2575489.040189986,
    1156531.9299282655
   ],
   "end_xy": [
    2575508.0072901067,
    1156538.0954029127
   ]
  },
  "min_25m": {
   "gradient_pct": -15.522217715357328,
   "start_distance_m": 6117.0,
   "end_distance_m": 6142.0,
   "midpoint_distance_m": 6129.5,
   "start_elevation_m": 1310.6998261744334,
   "end_elevation_m": 1306.819271745594,
   "start_xy": [
    2575470.8662978695,
    1156526.4242817787
   ],
   "end_xy": [
    2575494.829809331,
    1156533.5048249168
   ]
  },
  "min_50m": {
   "gradient_pct": -15.241289119762314,
   "start_distance_m": 6108.0,
   "end_distance_m": 6158.0,
   "midpoint_distance_m": 6133.0,
   "start_elevation_m": 1311.9698752346442,
   "end_elevation_m": 1304.349230674763,
   "start_xy": [
    2575462.3680422525,
    1156523.4612369325
   ],
   "end_xy": [
    2575509.8217937048,
    1156538.9365781213
   ]
  },
  "min_100m": {
   "gradient_pct": -14.402560517732354,
   "start_distance_m": 6100.0,
   "end_distance_m": 6200.0,
   "midpoint_distance_m": 6150.0,
   "start_elevation_m": 1313.107433225706,
   "end_elevation_m": 1298.7048727079737,
   "start_xy": [
    2575454.88853426,
    1156520.6329351715
   ],
   "end_xy": [
    2575546.502203196,
    1156559.2682041076
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.13352924758374,
   "start_distance_m": 5494.0,
   "end_distance_m": 5496.0,
   "midpoint_distance_m": 5495.0,
   "start_elevation_m": 1258.651275650015,
   "end_elevation_m": 1259.5739462349666,
   "start_xy": [
    2575273.294235082,
    1156798.4257950743
   ],
   "end_xy": [
    2575272.401138272,
    1156796.636276544
   ]
  },
  "max_3m": {
   "gradient_pct": 38.85060883674214,
   "start_distance_m": 5494.0,
   "end_distance_m": 5497.0,
   "midpoint_distance_m": 5495.5,
   "start_elevation_m": 1258.651275650015,
   "end_elevation_m": 1259.8167939151172,
   "start_xy": [
    2575273.294235082,
    1156798.4257950743
   ],
   "end_xy": [
    2575271.9541947786,
    1156795.7417143777
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.004,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.02,
   "windows_resited": [
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 4,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 4788.0,
     "end_m": 4813.0,
     "raw_pct": 25.61,
     "reason": "spike+hump"
    },
    {
     "window_m": 20.0,
     "start_m": 4791.0,
     "end_m": 4811.0,
     "raw_pct": 27.62,
     "reason": "staircase+spike+hump"
    },
    {
     "window_m": 10.0,
     "start_m": 5450.0,
     "end_m": 5460.0,
     "raw_pct": 38.24,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 5454.0,
     "end_m": 5459.0,
     "raw_pct": 44.52,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 4745.0,
     "end_m": 4770.0,
     "raw_pct": 20.55,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 4747.0,
     "end_m": 4767.0,
     "raw_pct": 24.66,
     "reason": "spike+hump"
    },
    {
     "window_m": 10.0,
     "start_m": 4757.0,
     "end_m": 4767.0,
     "raw_pct": 36.21,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 4760.0,
     "end_m": 4765.0,
     "raw_pct": 38.52,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 5147.0,
     "end_m": 5157.0,
     "raw_pct": 25.97,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 5433.0,
     "end_m": 5443.0,
     "raw_pct": 22.4,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": [
    {
     "window_m": 5.0,
     "start_m": 5494.0,
     "end_m": 5499.0,
     "pct": 28.07,
     "reason": "short-step"
    }
   ]
  },
  "excluded_ranges_m": [
   [
    2564.0,
    2571.0
   ],
   [
    4743.0,
    4772.0
   ],
   [
    4786.0,
    4815.0
   ],
   [
    5145.0,
    5159.0
   ],
   [
    5390.0,
    5395.0
   ],
   [
    5431.0,
    5445.0
   ],
   [
    5448.0,
    5462.0
   ],
   [
    5515.0,
    5521.0
   ],
   [
    5621.0,
    5626.0
   ]
  ],
  "review": [
   "texture_unresolved"
  ],
  "extent": []
 },
 "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_2021_2574-1156_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2574-1157_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2575-1156_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2575-1157_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2575-1158_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-12T01:30:48+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-ch-ch/batch-switzerland-rchunk01.pbf",
  "osm_snapshot": "",
  "run_id": "texture-ch-ch-260912",
  "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": [
   "2574-1156",
   "2574-1157",
   "2575-1156",
   "2575-1157",
   "2575-1158"
  ],
  "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": "Bas-Intyamon",
  "county": "Fribourg/Freiburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}